CN111955257A - Forest-grass-poultry ecological cycle mode for improving economic benefit of carya illinoensis orchard - Google Patents

Abstract

The invention relates to the technical field of hickory planting, and specifically provides a forest-grass-fowl ecological cycle mode for improving the economic benefits of hickory orchards, including orchard site selection, variety selection, soil improvement, and hickory planting , Forage planting under forest, poultry house construction and pastoral area division, irrigation and pest management, poultry excrement treatment and use procedures. The invention combines the planting of pecans with forage grass and poultry breeding, makes full use of the open space in the orchard, raises the poultry in the forest, feeds by cutting the forage, and applies the feces produced by the poultry to the orchard as organic fertilizer, The water and fertilizer integrated drip irrigation system is not only conducive to soil and water protection, but also improves the fertility of the orchard soil, accelerates the growth rate of trees, improves the early economic benefits of the pecan orchard, and reduces the growth of miscellaneous trees and weeds. Reducing the pesticide-contaminated area of forest land has significantly improved the ecological environment of the orchard and significantly improved the ecological benefits.

Description

A Forest-Grass-Poultry Ecological Cycle Model for Improving Economic Benefits of Pecan Pecan Orchards

technical field

The invention relates to the technical field of hickory planting, in particular to a forest-grass-fowl ecological cycle mode for improving the economic benefits of hickory orchards.

Background technique

Shell pecan, also known as long pecan, American pecan, is a pecan plant of the family Jugaceae, native to the United States and Mexico, and is one of the important oil-bearing dry fruit tree species in the world. The thin shell of pecan is thin and easy to peel, the kernel flesh is thick and fragrant and delicious, the kernel content reaches more than 50%, the oil content of the nut kernel is more than 70%, and the unsaturated fatty acid is more than 90%, which has high nutritional value and economic value. Since the 20th century, more than 20 countries in the world have introduced and grown pecans. Hickory was introduced into my country in 1900, and it has a history of nearly 120 years. After several generations of unremitting efforts, especially in the past 20 years, scientific researchers have bred some excellent varieties through introduction and breeding, such as Bonny, Ka More, Shaoxing, Stewart, etc. At the same time, it also broke through the technology of grafting container seedlings with rich roots of shell pecan (a method for rapid propagation of seedlings of fine pecan varieties, patent number: ZL201410239981.5), and the achievement of these achievements is the industrialization of shell pecan Development has laid a solid foundation.

However, the shell pecan has a long childhood, and it takes about 10 years for the seedlings to bear fruit and generate income. Although after the long-term efforts of scientific researchers, the grafted pecan seedlings can achieve the purpose of bearing fruit 3 years after planting, but the yield is very low, and it will take 6-8 years to enter the high-yield period, resulting in idle waste of land. In the early stage of pecan shell, the yield could not be formed, and the growers could not get any profit during the childhood period of pecan pecan. The great economic pressure has seriously restricted the enthusiasm of growers to plant and restricted the industrialization of pecans. We know that after the hard period of 6-8 years, the output of the pecan tree has increased year by year. The tree for the descendants of the ancestors who planted the tree and the descendants who took the shade to benefit their descendants. Therefore, the industry prospect of planting pecans is very broad. How to solve the early non-economic benefits and the under-forest economy of the hickory orchard, so that the hickory orchard can bring certain economic benefits through the use of the under-forest space in the early stage is one of the topics that scientific researchers have been exploring.

In order to solve the early non-economic benefits and under-forest economy of pecan orchards, scientific researchers have made some attempts. At present, there are mainly intercropping of peony and peony for oil, compound planting of pecan and tea, intercropping of pecan, rape or buckwheat between rows of pecan, and planting lycoris under the orchard of mature pecan. All of them can be used as the economic model under the pecan orchard to improve the economic benefit of the pecan orchard. However, so far, there is no report on the circular ecological model of the combination of shell pecans and farming.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a forest-grass-fowl ecological cycle mode that improves the economic benefit of the hickory orchard, so as to solve the technical problems of no economic benefit and under-forest economy in the hickory orchard in the early stage.

Specifically include the following steps:

(1) Park site selection: choose flat land or low-mountain hilly area where the park is located, with a soil layer thickness of more than 1 meter, sufficient sunlight, good drainage and irrigation, and the plot should be close to water sources or have irrigation conditions;

(2) Variety selection: 3-4 fine varieties of pecans that can be mutually pollinated when they meet in flowering period are selected, of which 1-2 are the main planting varieties, and the others are pollinating varieties; the pasture varieties are selected from alfalfa, ryegrass, One or more of sudangrass and goslings; under-forest poultry should choose local improved breeds of poultry or local improved breeds with strong adaptability, strong disease resistance, strong foraging ability, roughage resistance, tender meat and delicious taste Hybrid breeds with more than 75% pedigree of poultry breeds;

(3) Soil improvement: Before planting pecans, apply organic fertilizer evenly to the planting site, prepare the land according to the conditions of the garden, level the soil, and then carry out deep soil ploughing in the whole garden, and the depth of soil deep ploughing should reach 30cm-40cm;

(4) Hickory planting: choose autumn as the planting time, dig a planting hole with a length, width and height of (80cm-100cm) × (80cm-100cm) × (80cm-100cm), and lay organic fertilizer in the planting hole , and then backfill the topsoil into the planting hole, and backfill the deep soil into the planting hole after freezing for more than 30 days. The backfill soil is flush with the original ground. After watering, the row spacing of the pecans is (6-8) m × (8-10) m;

(5) Grass planting under forest: Forage grass can be planted all year round, weeds are removed before sowing, the ground is cleaned and the soil is loosened, and the mode of drilling grass seeds is adopted. The sowing depth is 2cm and the row spacing is 20cm-30cm. The distance between the grass and the roots of the pecans is 60cm-100cm. After sowing, appropriate suppression is carried out. The weight of the grass seeds sown in each acre of pecan orchards is 3kg-4kg;

(6) Poultry house construction and pastoral area division: Poultry is raised in the hickory orchard, and the rotating grazing system is implemented. The rotating grazing period is 40-60 days, grazing for 10-15 days in each pastoral area, and grazing for 30-45 days; every 100 Mu thin shell hickory orchard is a grazing farm. The grazing farm is divided into 3 to 6 feeding areas, each feeding area is divided into 4 pasturing areas, and movable fences are set up in the pasturing area. -4 poultry houses. The poultry house is a greenhouse with a length of 50m and a width of 8m. There are 700-900 poultry in each greenhouse. A manure storage pit with a depth of 20cm-30cm is dug in the greenhouse. The floor area is the same, and the plastic net is laid on the manure storage pit to facilitate the entry of poultry manure into the pit;

(7) Irrigation and pest and disease management: a drip irrigation system is installed in the whole orchard, and a drip irrigation water well is drilled every 50 mu of orchard; the pest control in the orchard mainly adopts the combination of manual control, biological control and physical control;

(8) Treatment and use of poultry excrement: The excrement in the poultry house should be cleaned up once a year, and after being bagged in snakeskin bags, it will be directly used as base fertilizer for pecan trees.

Preferably, in the selection of species in the step (2), in the Jiangsu region, lion goose is selected for poultry breeding under forest.

Preferably, in the soil improvement of step (3), 2 to 10 tons of organic fertilizer is applied per mu of planting land.

Preferably, in the step (4) planting of hickory nut, the main planting variety and pollinating variety of hickory hickory are selected as grafted seedlings with a height of more than 1.5 meters and a developed root system, and organic fertilizers are laid in the planting holes. The thickness is 45cm-55cm, the height of the topsoil backfilling into the planting hole is 20cm, and the height of the surrounding cover soil is 20cm-30cm higher than the ground after the planting of the hickory seedlings. After planting, the seedlings are dried at 0.9m-1.2m , The tree shape adopts the trunk layered type, the young forest stage, the winter is short, the growing season adopts the method of carving teeth and taking branches to prune to speed up the cultivation of fruiting branches and promote early fruiting.

Preferably, in the step (5) planting grass under forest, sudangrass and alfalfa are mixed in spring, summer and autumn, or sudangrass and goslings are mixed, and ryegrass is sown in winter. It is relatively hard and should be soaked in water one day in advance.

Preferably, in the step (6) in the construction of the poultry house and the division of the pastoral area, the frame of the greenhouse is made of steel frames, the roof of the greenhouse is made of color steel tiles, the height of the roof is 2.8m-3.2m, and the two sides of the greenhouse are made of fireproof The aluminum alloy plate is built into a high wall of 0.6m to 1m, and the high wall is left with doors and windows. The high wall on the sunny side of the greenhouse is provided with entrances and exits for poultry at intervals of 4m-5m, and drainage ditches are dug around the greenhouse.

Preferably, in the step (6) in the construction of the poultry house and the division of the pastoral area, each grazing farm is constructed with a water sports field and an open space for poultry to move freely. The water sports field is manually excavated, and the depth of the water sports field is 50cm. -60cm, 8m wide, a steel pipe greenhouse is also built above the water sports field, and the bottom of the poultry house, open space and water sports field are laid with breathable bricks.

Preferably, in the irrigation and pest management in step (7), the water sports field is connected with the irrigation pipeline of the drip irrigation system, and a sedimentation tank is arranged at the connection between the two, and the water flowing out from the water sports field is precipitated in the sedimentation tank and used for watering the fruit trees. , The sedimentation tank is used to remove solids such as sediment and feces, so as not to block the irrigation pipes.

Preferably, in the irrigation and pest management in step (7), an integrated drip irrigation system with water and fertilizer is used, and each grazing farm is provided with a reservoir with a length of 10m-15m, a width of 3m-5m, and a depth of 3.0m. The pond is used to store the biogas slurry made of poultry manure. After the biogas slurry is filtered by the filtration system, it is transported to the roots of the fruit trees as liquid fertilizer through the irrigation pipeline. The six sides of the cistern are laid with prefabricated boards. Equipped with an eight-stage filtration system, the interior of the reservoir refers to the setting of the septic tank, a facility storage room is built near the reservoir, a drip irrigation control system is installed in the facility reserve room, trenches are dug around the orchard plot, and irrigation pipes and irrigation pipes are laid. Connected with the reservoir, the irrigation pipes are divided into main pipes and branch pipes. The main pipes run from east to west and branch pipes run from north to south. A branch pipe is laid around each row of trees in the orchard. A micro-sprinkler is set between the fruit trees.

Preferably, in the irrigation and pest management in the step (7), the pest management method adopts the method of manual capture and whitening in winter. Mu orchards are set up with a solar lantern, and some biosafe fungicides are used to control black spot and gray spot disease of pecans.

Compared with the prior art, the present invention has the following advantages: in the childhood of pecan, the area of open space between plants and the exposed soil area are large, and by planting pasture in the forest, the occurrence of surface runoff is slowed down, soil erosion is reduced, and miscellaneous For the growth of trees and weeds, there is no need to spray pesticides in order to remove weeds in the forest, reducing the area of pesticide pollution in the forest land, so that the ecological environment of the orchard is significantly improved, and the ecological benefit is significantly improved; make full use of the open space in the orchard to raise poultry in the forest , By mowing pasture for feeding, the raised poultry can not only bring economic benefits, but the manure produced by the poultry can also be applied to the orchard as an organic fertilizer, which improves the fertility of the orchard soil, not only does not need to buy additional fertilizer, saves costs, and It also accelerated the growth rate of the trees, promoted the early fruiting of the pecan trees, and increased the income, which solved the low-efficiency problem of zero income and continuous investment within a few years after the pecan trees were planted; At the same time, irrigation and fertilization are carried out for fruit trees to meet the needs of fruit trees for water and nutrients in a timely and appropriate amount, and to realize the water-saving agricultural technology of simultaneous management and efficient utilization of water and fertilizer.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

Example

The forest-grass-fowl ecological cycle model for improving the economic benefits of pecan orchards includes the following steps:

(1) Park site selection: choose flat land or low-mountain hilly areas where the park is located, with a soil layer thickness of more than 1 meter, sufficient sunlight, good drainage and irrigation, and the plot should be close to water sources or have irrigation conditions.

(2) Variety selection: 3-4 fine varieties of pecans that can be mutually pollinated when they meet during the flowering period are selected, of which 1-2 are the main varieties, and the others are pollinating varieties. Among them, the main varieties can be selected from Bonny, Wichita, Mahan, Weston, Shoshone, Jinhua, pollinated varieties can be selected from Mahan, Posey, Shoshone; pasture varieties can be selected from alfalfa, ryegrass, Sudan grass, and gosling grass. One or several species; poultry raised in forests shall be selected from local improved breeds of poultry with strong adaptability, strong disease resistance, strong foraging ability, resistance to rough feeding, tender meat, and delicious taste, or local breeds of improved poultry breeds that account for more than 75% of the pedigree. Hybrid, in the Jiangsu area, lion goose can be selected for poultry breeding in the forest.

(3) Soil improvement: Before planting pecans, evenly apply organic fertilizer to the planting land, apply 2 tons to 10 tons of organic fertilizer per mu of planting land, prepare the land and level the soil according to the conditions of the garden, and then carry out deep soil ploughing in the whole garden. The depth of soil deep ploughing should reach 30cm -40cm.

(4) Hickory planting: choose autumn as the planting time, dig a planting hole with the length, width and height of (80cm-100cm) × (80cm-100cm) × (80cm-100cm), and lay 45cm~ 55cm of organic fertilizer, and then backfill the topsoil into the planting hole. The height of the topsoil backfilling into the planting hole is 20cm. After freezing for more than 30 days, the deep soil is backfilled into the planting hole. The backfill soil is flush with the original ground. The grafted seedlings of good varieties with well-developed root systems above 1.5 meters are placed in the planting hole, and the soil is covered around the seedlings. The height of the covering soil is 20cm-30cm higher than the ground. 6-8)m×(8-10)m, after planting, the seedlings are fixed at 0.9m-1.2m. The tree shape adopts the trunk layered type, and the young forest stage is shortened in winter. The branch pruning method accelerates the cultivation of fruiting branches and promotes early fruiting.

(5) Forage grass planting under forest: Forage grass can be sown all year round. In spring, summer and autumn, sudangrass and alfalfa are mixed, or sudangrass and goslings are mixed. In winter, ryegrass are sown. Before sowing, If the seeds are relatively hard, soak them in water one day in advance to accelerate the germination of the seeds. Weeds are removed before sowing, the ground is cleaned and soil loosened, and the mode of drilling grass seeds is adopted. Proper suppression, after sowing, can break the clods, make up the gaps on the surface, reduce evaporation, prevent moisture loss, and also make the seeds in close contact with the wet soil, promote the seeds to absorb water and germinate, and improve the emergence rate. The weight of the seeds is 3kg -4kg, and the seeding amount can be adjusted according to the orchard terrain, climate, soil fertility, seed purity and quality.

(6) Poultry house construction and pastoral area division: Poultry is raised in the hickory orchard, and the rotating grazing system is implemented. The rotating grazing period is 40-60 days, grazing for 10-15 days in each pastoral area, and grazing for 30-45 days; every 100 Mu thin shell hickory orchard is a grazing farm. The grazing farm is divided into 3 to 6 feeding areas, each feeding area is divided into 4 pasturing areas, and movable fences are set up in the pasturing area. -4 poultry houses. The poultry house is a greenhouse with a length of 50m and a width of 8m. There are 700-900 poultry in each greenhouse. A manure storage pit with a depth of 20cm-30cm is dug in the greenhouse. The floor space is the same, and plastic nets are laid on the manure storage pit to facilitate the entry of poultry manure into the pit. The frame of the greenhouse is made of steel frame, and the roof of the greenhouse is made of color steel tiles. There are doors and windows. There are entrances and exits for poultry at intervals of 4m-5m on the high wall on the sunny side of the greenhouse. Drainage ditches are dug around the greenhouse to facilitate the drainage of rainwater in time when it rains, so as to prevent rainwater from flowing into the greenhouse and affecting the poultry's health. healthy growth. Each grazing farm is built with a water sports field and an open space for poultry to move freely. The water sports field is excavated manually. The depth of the water sports field is 50cm-60cm and the width is 8m. There is also a steel pipe greenhouse above the water sports field. In summer, a shading net can be laid on the top of the steel pipe greenhouse to provide a cool and comfortable living environment for poultry. The bottom of the poultry house, open space and water sports field are laid with breathable bricks. The breathable bricks have good thermal stability, erosion resistance, The advantages of corrosion resistance and penetration resistance, safe and reliable operation and long service life.

(7) Irrigation and management of pests and diseases: A drip irrigation system is installed in the whole orchard, and a drip irrigation water well is drilled every 50 mu of orchards. The water sports field is connected to the irrigation pipeline of the drip irrigation system, and a sedimentation tank is set at the connection between the two. The water flowing out of the water sports field is precipitated by the sedimentation tank and used to water the fruit trees. Blocked irrigation pipes. The integrated water and fertilizer drip irrigation system is adopted. Each grazing farm is equipped with a reservoir with a length of 10m-15m, a width of 3m-5m and a depth of 3.0m. After the biogas slurry is filtered by the filtration system, it is transported to the roots of the fruit trees as liquid fertilizer through the irrigation pipeline. The six surfaces of the reservoir are laid with prefabricated boards. The reservoir is equipped with an eight-stage filtration system, and the interior of the reservoir refers to the septic tank. Set up, build a facility storage room near the reservoir, install a drip irrigation control system in the facility reserve room, dig trenches around the orchard plot, and lay irrigation pipes, which are connected to the reservoir, and the irrigation pipes are divided into main pipes and branch pipes. , the main pipe runs from east to west, and the branch pipes run from north to south. There is a branch pipe around each row of trees in the orchard. The pest control in the orchard mainly adopts the combination of artificial control, biological control and physical control. The management method of pests and diseases adopts the methods of artificial capture and white painting in winter. For phototropic pests, solar trapping lamps are mainly used for trapping and control. One solar trapping lamp is set for every 30-50 mu of orchards. Some biosafe fungicides are used to control black spot and grey spot on pecans.

(8) Treatment and use of poultry excrement: The excrement in the poultry house should be cleaned up once a year, and after being bagged in snakeskin bags, it will be directly used as base fertilizer for pecan trees.

The invention adopts the forest-grass-fowl ecological cycle mode, effectively utilizes the forest space for poultry breeding and forage planting, and improves the early economic and ecological benefits of the pecan orchard. The annual economic benefit of raising 20-40 lion geese per mu of orchard can reach 2,000-4,000 yuan/mu, and the cost of manual weeding can be saved by 300-400 yuan/mu due to the planting of pasture between the rows. In addition, purchasing fertilizers can save 200-300 yuan/mu, that is, the income per mu can be increased by 2500-4700 yuan/mu. Poultry farming in the orchard adopts the development concept of "ecology, branding, large-scale, industrialization, and marketization", which attracts a large number of social labors to join. By planting pasture in the forest, the surface runoff is slowed down, soil erosion is reduced, and the growth of weeds and trees is reduced. There is no need to spray pesticides to remove weeds in the forest, reducing the area of pesticide pollution in the forest land, and improving the ecological environment of the orchard. improved, and the ecological benefits have been significantly improved.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the present invention. scope of protection.

Claims (10)

1. The forest-grass-poultry ecological cycle mode for improving the economic benefit of the carya illinoensis orchard is characterized in that: the method comprises the following steps:

(1) and (3) garden address selection: the land location is selected to be flat land or low hilly land, the soil layer thickness is more than 1 meter, the illumination is sufficient, the drainage and irrigation are good, and the land needs to be close to a water source or have irrigation conditions;

(2) variety selection: selecting 3-4 excellent varieties which can be pollinated with each other when the thin-shell hickory nuts meet in the flowering phase, wherein 1-2 excellent varieties are main cultivars, and the others are pollinated varieties; the pasture variety is selected from one or more of alfalfa, ryegrass, sudan grass and small goose grass; selecting local improved-breed poultry or hybrids of local improved-breed poultry varieties with strong adaptability, strong disease resistance, strong foraging capability, coarse feeding resistance, tender meat quality and delicious taste, wherein the blood system of the local improved-breed poultry or the local improved-breed poultry varieties accounts for more than 75%;

(3) soil improvement: before planting the carya illinoensis, uniformly applying an organic fertilizer to a planting field, preparing soil according to field conditions, leveling the soil, and then deeply ploughing the soil in the whole field, wherein the deep ploughing depth of the soil is 30-40 cm;

(4) planting apocarya: selecting autumn, digging a planting hole with the length, width and height of (80 cm-100 cm) × (80 cm-100 cm) × (80 cm-100 cm), paving a machine fertilizer in the planting hole, backfilling surface soil into the planting hole, freezing deep soil for more than 30 days, backfilling into the planting hole, leveling the backfilled soil with the original ground, placing a carya illinoensis seedling into the planting hole, covering soil around the seedling, watering thoroughly after planting, and setting the planting row spacing of carya illinoensis to be (6-8) mx (8-10) m;

(5) planting the under-forest pasture: the method can be used for sowing the forage grass all the year round, weeds are removed before sowing, the ground is cleaned and loosened, a mode of sowing the forage grass seeds in a row is adopted, the sowing depth is 2cm, the row spacing is 20cm-30cm, the distance between the forage grass and the roots of carya illinoensis is 60cm-100cm, proper suppression is carried out after sowing, and the weight of the forage grass seeds sowed in each mu of carya illinoensis orchard is 3 kg-4 kg;

(6) poultry house construction and pastoral area division: breeding poultry in a carya illinoensis orchard, and implementing a rotation grazing stocking system, wherein the rotation grazing cycle is 40-60 days, grazing is performed in each grazing area for 10-15 days, and grazing is performed for 30-45 days; every 100 mu of carya illinoensis orchard is a grazing farm, the grazing farm is divided into 3-6 feeding areas, each feeding area is divided into 4 pasturing areas, movable fences are arranged in the grazing areas, 3-4 poultry houses are built in each grazing farm, each poultry house is a greenhouse with the length of 50m and the width of 8m, 700 and 900 poultry are cultured in each greenhouse, manure storage pits with the depth of 20cm-30cm are dug in each greenhouse, the occupied area of each manure storage pit is consistent with that of each greenhouse, and a plastic net is laid on each manure storage pit to facilitate the manure of the poultry to enter the pits;

(7) irrigation and pest management: paving a drip irrigation system in the whole garden, and drilling one drip irrigation water well in each 50 mu of orchard; the pest control in the orchard mainly combines artificial control, biological control and physical control;

(8) treatment and use of poultry excrement: the excrement in the poultry house is cleaned once a year and is directly used as a base fertilizer for the carya illinoensis trees after being bagged by snakeskin bags.

2. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 1, characterized in that: in the step (2), in the selection of the variety, the lion goose is selected from the poultry bred in the forest in the Jiangsu area.

3. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 1, characterized in that: in the step (3), 2-10 tons of organic fertilizer is applied to each mu of planting land in the soil improvement.

4. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 1, characterized in that: in the planting of the carya illinoensis in the step (4), main planted varieties and pollinated varieties of the carya illinoensis are all good varieties with developed root systems and heights of more than 1.5 m, organic fertilizers are laid in the planting holes and have thicknesses of 45-55 cm, surface soil is backfilled into the planting holes and has a height of 20cm, the surrounding soil covering height is 20-30 cm higher than the ground after planting of carya illinoensis seedlings is completed, the seedlings are subjected to fixed drying at 0.9-1.2 m after planting, tree forms are of a layered type, the young stand period is short in winter, and the growing season adopts tooth carving and branch taking methods, so that the culture of bearing branches is accelerated, and early bearing is promoted.

5. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 1, characterized in that: in the step (5), during planting of the under-forest forage grass, the Sudan grass and the alfalfa are sown in a mixed mode in spring, summer and autumn, or the Sudan grass and the gosling grass are sown in a mixed mode, ryegrass is sown in winter, and before sowing, if the seeds are hard, the seeds are soaked in water one day in advance.

6. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 1, characterized in that: in the step (6), in the building of the poultry house and the division of the pastoral area, the frame of the greenhouse is made of steel frames, the roof of the greenhouse is made of color steel tiles, the height of the roof is 2.8-3.2 m, two sides of the greenhouse are built into 0.6-1 m high walls by fireproof aluminum alloy plates, doors and windows are reserved on the high walls, the high walls on the sunny side of the greenhouse are provided with entrances and exits for poultry to enter and exit every 4-5 m, and drainage ditches are dug around the greenhouse.

7. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 6, characterized in that: in the building of the poultry house and the division of the pastoral area in the step (6), a water sports field and an open space for free movement of poultry are built in each grazing farm, the water sports field is formed by manual excavation, the depth of the water sports field is 50-60 cm, the width of the water sports field is 8m, a steel pipe greenhouse is built above the water sports field, and air bricks are laid at the bottoms of the poultry house, the open space and the water sports field.

8. The forest-grass-bird ecological cycle mode of improving pecan orchard economic benefits of claim 7, characterized in that: and (4) in the step (7) of irrigation and pest and disease management, the water sports field is connected with an irrigation pipeline of the drip irrigation system, a sedimentation tank is arranged at the joint of the water sports field and the drip irrigation system, water flowing out of the water sports field is used for irrigating fruit trees after being precipitated by the sedimentation tank, and the sedimentation tank is used for removing solids such as silt and excrement so as to avoid blocking the irrigation pipeline.

9. The forest-grass-bird ecological cycle mode of improving pecan orchard economic benefits of claim 8, characterized in that: in the step (7), in the irrigation and pest and disease management, a water-fertilizer integrated drip irrigation system is adopted, each grazing farm is provided with a reservoir with the length of 10-15 m, the width of 3-5 m and the depth of 3.0m, the reservoir is used for storing biogas slurry made by retting poultry excrement, the biogas slurry is filtered by a filtering system and is conveyed to the root of a fruit tree as a liquid fertilizer through an irrigation pipeline, prefabricated plates are paved on six surfaces of the reservoir, an eight-stage filtering system is arranged in the reservoir, the interior of the reservoir is arranged according to a septic tank, a facility storage room is built near the reservoir, a drip irrigation control system is installed in the facility storage room, ditches are dug around a plot, irrigation pipelines are paved, the irrigation pipelines are communicated with the reservoir, the irrigation pipelines are divided into a main trunk pipe and branch pipes of an orchard, the east-west trend of the main pipe is in the south-north direction and the east, the branch pipe is connected with a water delivery thin pipe, and a micro-spray head is arranged between every two fruit trees.

10. The forest-grass-bird ecological cycle mode for improving the economic benefit of apocarya orchards according to claim 1, characterized in that: in the step (7) of irrigation and pest management, the pest management method adopts a method of manual capture and winter whitening, for phototropic pests, solar light-inducing lamps are mainly used for trapping, killing and preventing, one solar light-inducing lamp is arranged in each 30-50 mu of orchard, and some biological safety fungicides are used for preventing and treating black spot and gray spot of carya illinoensis.