CN112166987A - Mixed cultivation method of alfalfa, semen cassiae and honeysuckle - Google Patents

Mixed cultivation method of alfalfa, semen cassiae and honeysuckle Download PDF

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Publication number
CN112166987A
CN112166987A CN202010865181.XA CN202010865181A CN112166987A CN 112166987 A CN112166987 A CN 112166987A CN 202010865181 A CN202010865181 A CN 202010865181A CN 112166987 A CN112166987 A CN 112166987A
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soil
alfalfa
honeysuckle
cassia seed
parts
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CN112166987B (en
Inventor
李峰
陶雅
李雪
徐丽君
那亚
花梅
焦巍
王荣
司丙文
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Grassland Research Institute of Chinese Academy of Agricultural Sciences
Heilongjiang Feihe Dairy Co Ltd
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Grassland Research Institute of Chinese Academy of Agricultural Sciences
Heilongjiang Feihe Dairy Co Ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00Cultivation of specific crops or plants not otherwise provided for
    • A01G22/40Fabaceae, e.g. beans or peas
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00Methods for working soil
    • A01B79/02Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C1/00Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/005Cultivation methods
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12Powders or granules
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N63/00Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/20Bacteria; Substances produced thereby or obtained therefrom
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00Soil-conditioning materials or soil-stabilising materials
    • C09K17/40Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2101/00Agricultural use
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2109/00MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation

Abstract

The invention provides a mixed cultivation method of alfalfa, cassia seed and honeysuckle, which is characterized in that the alfalfa, cassia seed and honeysuckle are planted by adopting a cross-seeding method and irrigating by utilizing a micro-sprinkling irrigation technology to promote plant growth by means of deep ploughing and deep scarification of saline-alkali soil, applying a soil conditioner, an acidity regulator, a microbial preparation and the like. The method provided by the invention can improve the soil quality of the saline-alkali soil, improve the yield of alfalfa, cassia seed and honeysuckle, fully utilize land resources and environmental resources, improve the resource utilization efficiency, improve the soil quality of the saline-alkali soil, and have the beneficial effect of good ecological benefit.

Description

Mixed cultivation method of alfalfa, semen cassiae and honeysuckle
Technical Field
The invention belongs to the technical field of crop cultivation, and particularly relates to a mixed cultivation method of alfalfa, semen cassiae and honeysuckle.
Background
The saline-alkali soil is a general term for various saline soil, alkaline earth, salinized soil and alkalized soil, and can be divided into mild (less than 2.5 per thousand), moderate (2.5-3.5 per thousand) and severe (more than 3.5 per thousand) according to the content of saline alkali in the soil. As an important land resource, the salinization of the soil can not effectively utilize large-area land, seriously affects the agricultural production and the improvement of the living standard of farmers, and even seriously affects the regional ecological environment and the grain production.
Alfalfa is known as the king of pasture, not only has high yield but also has excellent quality, and is popular with various livestock and poultry.
Alfalfa planting in China has been in history for thousands of years, planting technology is mature, and interplanting is carried out on alfalfa and other crops in saline-alkali soil, so that the content of nutrient components in saline-alkali soil can be increased, and the yield of the alfalfa is increased. However, the salt content of the saline-alkali soil is higher than that of the normal soil, and the nutrient content of the saline-alkali soil is deficient and exceeds the tolerance limit of the saline-alkali resistance of the alfalfa when the alfalfa is planted in the prior art, so that the yield of the alfalfa is difficult to reach the normal amount.
Semen Cassiae is dry mature seed of Cassia tora or Cassia tora L.of Leguminosae, is sweet, bitter, salty, and slightly cold in nature, has effects of clearing heat and improving eyesight, loosening bowel to relieve constipation, and can be used for treating conjunctival congestion, headache, giddiness, dim eyesight, constipation, etc. Modern medical research considers that cassia seed has the effects of reducing blood pressure, reducing blood fat, protecting liver, improving kidney function and the like, is one of 69 substances with homology of medicine and food published by the national ministry of health, and is a cassia seed tea drink commonly used by people.
Honeysuckle is a plant of Caprifoliaceae and belongs to perennial and semi-evergreen winding shrubs. Flos Lonicerae can be used as flower bud or flower to be bloomed, and caulis Lonicerae can also be used as medicinal component, and its main medicinal components are chlorogenic acid and isocorylic acid. The flower buds of honeysuckle flower can clear away heat and toxic materials, and the honeysuckle stem also has the effects of clearing away heat and toxic materials and dredging collaterals. Honeysuckle belongs to a large amount of medicinal materials, the market demand is large, and artificial cultivation is an important source way. However, the traditional honeysuckle cultivation method has the disadvantages of wide row spacing, serious weed damage, high weeding and fertilizer input cost, low land utilization rate and influence on the honeysuckle planting benefit.
So far, no method for planting alfalfa, cassia seed and honeysuckle in a saline-alkali land in a mixed mode is available.
Disclosure of Invention
In view of the above, the invention aims to overcome the problems in the prior art, and provides a method for planting alfalfa, cassia seed and honeysuckle in saline-alkali soil, so that on one hand, the salt content and alkalinity of the saline-alkali soil are effectively reduced, the organic matter content of the soil is improved, the soil condition of the saline-alkali soil is improved, and the land utilization efficiency of the saline-alkali soil is greatly improved; on the other hand, the method has higher economic value for planting the alfalfa, the cassia seeds and the honeysuckle, can improve the agricultural production and the living standard of farmers, and improves the economic benefit of the saline-alkali soil.
In order to achieve the purpose, the invention provides the following technical scheme that the mixed cultivation method of the alfalfa, the cassia seed and the honeysuckle comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 3-5 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to deeply plough and deeply loosen the soil with the depth of 30-35 cm, and airing for 5-8 days, wherein the soil conditioner is composed of the following raw materials: 30-50 parts of a biological organic fertilizer, 20-40 parts of corn straw powder, 10-20 parts of plant ash, 10-15 parts of urea, 10-15 parts of monopotassium phosphate, 5-10 parts of kaolin powder, 20-40 parts of bran powder, 5-15 parts of desulfurized gypsum and 5-10 parts of a complex enzyme preparation;
(3) applying the acidity regulator into the soil in the step (2) along with water according to the concentration of 0.5-10%, and watering thoroughly until the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation to the soil in the step (3), wherein the microbial preparation is a mixed powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 25-35 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in water for 20-24 hr, taking out, and air drying; soaking alfalfa seeds in ABT rooting powder; performing cross sowing according to 40-60cm row spacing; after sowing, covering soil and compacting, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 8-10 days, and ensuring that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
Further, the complex enzyme preparation in the step (2) consists of amylase, cellulase, protease, cellulase, urease and lipase in a weight ratio of 1:1-1.5:0.5-1:1-1.5:0.5-0.8: 1-1.3;
further, the acidity regulator in the step (3) is one or more of citric acid, acetic acid and lactic acid;
further, soaking the alfalfa seeds in the ABT rooting powder solution for 2-3h in the step (5); the concentration of the rooting powder solution is 100mgABT rooting powder/kg water; soaking semen Cassiae and flos Lonicerae seed in 40-50 deg.C warm water;
further, the cross seeding is that the alfalfa, the cassia seed and the honeysuckle are arranged in sequence, each crop is 4-6 rows, the row spacing is 40-60cm, and the seeding depth is 1-2 cm;
further, the alfalfa varieties are selected from one or more of Fengbao, Sijiwang, Aifelast and Jinhuanghou.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the method, the alfalfa, the cassia seed and the honeysuckle are planted on the saline-alkali soil, and the soil conditioner, the microbial agent and the like are applied, so that the soil of the saline-alkali soil is improved, the ecological environment of the saline-alkali soil is improved, and the sustainable ecological development is promoted;
(2) the alfalfa and the cassia seed belong to leguminous plants, and the mixed cultivation of the alfalfa and the cassia seed can synergistically promote the fixation of nitrogen potential, improve the soil fertility, reduce the input of chemical fertilizers and ensure the growth of honeysuckle; the weed harm in the field can be effectively reduced through the mixed cultivation of the alfalfa, the cassia seeds and the honeysuckle, and the yield of the alfalfa, the cassia seeds and the honeysuckle is remarkably improved; thereby improving the comprehensive economic benefit; meanwhile, the method has the characteristic of environmental protection;
(3) the soil conditioner of the invention fully utilizes natural raw materials such as plant straws, biological organic fertilizer and the like, has low cost and balanced nutrition, can reduce the pH of the soil, can also obviously improve the content of organic matters in the soil, improves the ventilation and water seepage conditions of the soil and increases the soil quality of saline-alkali soil.
(4) The method of the invention can improve the economic benefit of crops, fully utilize land resources and environmental resources and improve resources
The utilization efficiency is improved, the soil quality of the saline-alkali soil is improved, and the ecological benefit is good.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Firstly, preparing a soil conditioner, namely selecting 50 parts of a biological organic fertilizer, 40 parts of corn straw powder, 20 parts of plant ash, 10 parts of urea, 10 parts of monopotassium phosphate, 10 parts of kaolin powder, 40 parts of bran powder, 15 parts of desulfurized gypsum and 10 parts of a complex enzyme preparation; the compound enzyme preparation consists of amylase, cellulase, protease, cellulase, urease and lipase in a weight ratio of 1:1.5:0.5:1:0.8:1, and is mixed and stirred uniformly.
Finally, the concentration of the rooting powder solution is selected to be 100mgABT rooting powder/kg water.
Example 1
The embodiment provides a mixed cultivation method of alfalfa, cassia seed and honeysuckle, which comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 5 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to carry out deep ploughing and deep scarification on the soil, wherein the depth is 30-35 cm, airing for 8 days,
(3) applying an acidity regulator citric acid into the soil in the step (2) along with water according to the concentration of 10%, and watering thoroughly until the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation to the soil in the step (3), wherein the microbial preparation is a mixed powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 35 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in 50 deg.C warm water for 24h, taking out, and air drying; soaking the alfalfa seeds in ABT rooting powder for 2 h; ditching according to the seed crop of 5 rows, the row spacing of 40cm and the sowing depth of 1cm, arranging the alfalfa, the cassia seed and the honeysuckle in sequence for cross sowing, covering soil and compacting after sowing, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 9 days to ensure that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
Example 2
The embodiment provides a mixed cultivation method of alfalfa, cassia seed and honeysuckle, which comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 4 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to carry out deep ploughing and deep scarification on the soil, wherein the depth is 30-35 cm, airing for 6 days,
(3) applying an acidity regulator acetic acid into the soil in the step (2) along with water according to the concentration of 6%, and watering thoroughly until the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation to the soil in the step (3), wherein the microbial preparation is a mixed powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 25 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in 40 deg.C warm water for 24h, taking out, and air drying; soaking seeds of Medicago sativa L.in ABT rooting powder for 3 h; ditching according to 6 rows of the seed crops, the row spacing of 60cm and the sowing depth of 2cm, and sequentially arranging the alfalfa, the cassia seeds and the honeysuckle for cross sowing; after sowing, covering soil and compacting, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 8 days, and ensuring that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
Example 3
The embodiment provides a mixed cultivation method of alfalfa, cassia seed and honeysuckle, which comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 3 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to carry out deep ploughing and deep scarification on the soil, wherein the depth is 30-35 cm, airing for 5 days,
(3) applying the acidity lactic acid regulator into the soil in the step (2) along with water according to the concentration of 9%, and pouring the soil thoroughly after the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation into the soil obtained in the step (3), wherein the microbial preparation is a mixture powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 30 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in 45 deg.C water for 20 hr, taking out, and air drying; soaking seeds of the alfentanite alfalfa for 2.5 hours by using ABT rooting powder; ditching according to 5 rows of the seed crops, the row spacing of 50cm and the sowing depth of 2cm, and sequentially arranging the alfalfa, the cassia seeds and the honeysuckle for cross sowing; after sowing, covering soil and compacting, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 10 days to ensure that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
Example 4
The embodiment provides a mixed cultivation method of alfalfa, cassia seed and honeysuckle, which comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 5 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to carry out deep ploughing and deep scarification on the soil, wherein the depth is 30-35 cm, airing for 8 days,
(3) applying an acidity regulator acetic acid into the soil in the step (2) along with water according to the concentration of 4%, and watering thoroughly until the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation into the soil obtained in the step (3), wherein the microbial preparation is a mixture powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 28 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in 40 deg.C warm water for 24h, taking out, and air drying; soaking the seeds of the golden queen alfalfa for 3 hours by using ABT rooting powder; ditching according to 4 rows of the seed crops, the row spacing of 50cm and the sowing depth of 2cm, and sequentially arranging the alfalfa, the cassia seeds and the honeysuckle for cross sowing; after sowing, covering soil and compacting, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 8-10 days, and ensuring that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
Example 5
The embodiment provides a mixed cultivation method of alfalfa, cassia seed and honeysuckle, which comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 4 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to deeply plough and deeply loosen the soil, wherein the depth is 30-35 cm, and airing for 7 days;
(3) applying an acidity regulator citric acid into the soil in the step (2) along with water according to the concentration of 0.5%, and watering thoroughly until the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation to the soil in the step (3), wherein the microbial preparation is a mixed powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 35 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in 50 deg.C warm water for 24h, taking out, and air drying; soaking seeds and alfalfa seeds in ABT rooting powder for 2 h; ditching according to 4 rows of the seed crops, the row spacing of 60cm and the sowing depth of 1cm, and sequentially arranging the alfalfa, the cassia seeds and the honeysuckle for cross sowing; after sowing, covering soil and compacting, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 8 days, and ensuring that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A mixed cultivation method of alfalfa, cassia seed and honeysuckle is characterized in that: the method comprises the following steps:
(1) deep ploughing and deep loosening the soil by using a rotary cultivator, wherein the depth is 30-35 cm, and airing for 3-5 days;
(2) applying a soil conditioner to the soil in the step (1), continuously utilizing a rotary cultivator to deeply plough and deeply loosen the soil with the depth of 30-35 cm, and airing for 5-8 days, wherein the soil conditioner is composed of the following raw materials: 30-50 parts of a biological organic fertilizer, 20-40 parts of corn straw powder, 10-20 parts of plant ash, 10-15 parts of urea, 10-15 parts of monopotassium phosphate, 5-10 parts of kaolin powder, 20-40 parts of bran powder, 5-15 parts of desulfurized gypsum and 5-10 parts of a complex enzyme preparation;
(3) applying the acidity regulator into the soil in the step (2) along with water according to the concentration of 0.5-10%, and watering thoroughly until the water penetrates into the surface layer and is slightly dry; applying an amount of an acidity regulator until the pH of the soil at a depth of 10-20cm reaches 8.0 or less;
(4) applying a microbial preparation to the soil in the step (3), wherein the microbial preparation is a mixed powder of plant growth-promoting rhizobacteria and halophilic bacteria in a mass ratio of 1:1, and the application amount is 25-35 kg/mu;
(5) soaking semen Cassiae and flos Lonicerae seed in water for 20-24 hr, taking out, and air drying; soaking alfalfa seeds in ABT rooting powder; performing cross sowing according to 40-60cm row spacing; after sowing, covering soil and compacting, and watering to keep the soil moist;
(6) irrigating the sowed soil by micro-sprinkling irrigation for 1 time in 8-10 days, and ensuring that the water level of a surface soil layer is 5-10 cm until seedlings emerge;
(7) and after seedling emergence, performing field management of irrigation, fertilization, weeding and deinsectization.
2. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 1, wherein: the complex enzyme preparation in the step (2) consists of amylase, cellulase, protease, cellulase, urease and lipase in a weight ratio of 1:1-1.5:0.5-1:1-1.5:0.5-0.8: 1-1.3.
3. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 1, wherein: the acidity regulator in the step (3) is one or more of citric acid, acetic acid and lactic acid.
4. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 1, wherein: and (5) soaking the alfalfa seeds in the ABT rooting powder solution for 2-3 h.
5. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 4, wherein: the concentration of the rooting powder solution is 100mgABT rooting powder/kg water.
6. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 1, wherein: soaking semen Cassiae and flos Lonicerae seed in 40-50 deg.C warm water.
7. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 1, wherein: the cross seeding is that the alfalfa, the cassia seed and the honeysuckle are arranged in sequence, each crop has 4-6 rows, the row spacing is 40-60cm, and the seeding depth is 1-2 cm.
8. The mixed cultivation method of alfalfa, cassia seed and honeysuckle as claimed in claim 1, wherein: the alfalfa is selected from one or more of Fengbao, Sijiwang, Aifelast and Jinhuanghou.
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