CN114747448A - Environment-friendly control method for weeds in cotton field - Google Patents

Environment-friendly control method for weeds in cotton field Download PDF

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Publication number
CN114747448A
CN114747448A CN202210383435.3A CN202210383435A CN114747448A CN 114747448 A CN114747448 A CN 114747448A CN 202210383435 A CN202210383435 A CN 202210383435A CN 114747448 A CN114747448 A CN 114747448A
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cotton
mulching film
weeds
soil
film
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操苏立
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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
    • A01G22/50Cotton
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/02Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256Ground coverings
    • A01G13/0268Mats or sheets, e.g. nets or fabrics
    • A01G13/0275Films

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Botany (AREA)
  • Catching Or Destruction (AREA)
  • Protection Of Plants (AREA)

Abstract

The invention relates to a cotton cultivation method, and belongs to the field of agriculture. Cotton is an important economic crop in China, is damaged by weeds in the planting process, and influences the yield and the quality. Chemical weeding is a main measure for field management of cotton at present, and chemical weeding easily causes phytotoxicity to cotton and pollution to the environment. The mulching film is covered after cotton is sowed, and after cotton seedlings emerge, dark pigment or paint is sprayed on the surface of the mulching film in a directional mode, so that the light transmittance of the mulching film is weakened, weeds in the mulching film are prevented from receiving sunlight, and the weeds die due to starvation caused by lack of photosynthetic organic nutrition. The cotton is sowed and covered with mulching film immediately, the temperature is preserved and the seedling is promoted, after the cotton seedling grows out 2-3 true leaves, the surface of the mulching film is sprayed with dark pigment or paint in a directional mode, the light transmittance of the mulching film is weakened, the sunlight is isolated on the surface of the mulching film, weeds in the mulching film cannot carry out normal photosynthesis due to lack of illumination, organic nutrition is deficient, and the weeds are starved and died.

Description

Environment-friendly control method for weeds in cotton field
Technical Field
The invention relates to a cotton cultivation method, and belongs to the field of agriculture.
Background
Cotton is the important strategic material of the countryside of China, is the second crop next to grain, and relates to two major industries of agriculture and textile industry. Cotton production concerns billions of cotton growers' income, and cotton fiber belongs to an important raw material in textile industry and is an important commodity for earning foreign exchange in export. The cotton textile has the advantages of strong hygroscopicity, good air permeability, good heat retention, stable coloring, soft hand feeling, comfortable wearing and the like, and can not be replaced by chemical fibers. The cottonseed kernel contains 35-46% of oil and 30-35% of protein, and is a good feed and organic fertilizer. Gossypol is a polyphenol compound, and can be used for producing medicines for treating lung cancer. Cotton is an indispensable life necessity for the masses.
China is the second world cotton producing country, and the total output accounts for about 22% of the world. In the production process of cotton, because a large amount of grass seeds are accumulated in the planting field, the grass seeds have extremely strong vitality, the grass seeds which have passed through the dormancy stage exist at any time in the whole growing season, and when the grass seeds meet proper temperature and moisture, buds begin to grow out of the ground. In the early growth stage of cotton, the stress resistance of weeds is strong, the growth is vigorous, and the cotton is in a competitive disadvantage and is easy to cause continuous weeds to be wastefully grown; in the middle and later growth stages of cotton, weeds compete for water, fertilizer, sunlight and growth space with cotton, and the yield and quality of cotton are seriously influenced.
At present, chemical weeding is mainly relied on in cotton fields, namely, after the cotton fields are ploughed and leveled, pre-emergence herbicide is sprayed on the ground surface to inhibit the germination and emergence of weeds; during the growth period of cotton peanuts, stem and leaf treating agents are used for killing weeds growing on the ground. Spraying the pre-emergence herbicide, wherein when the cotton is sown, the cotton is easily subjected to herbicide damage when meeting high temperature or low temperature, so that emergence barrier is caused, the emergence rate is reduced, seedling plants shrink, and leaves are twisted to form runt seedlings; after cotton seedlings emerge, the stem and leaf treatment agent is used for weeding, only part of weeds growing out of the mulching film can be killed, weeds in the mulching film cannot be prevented and killed, and weeds in the mulching film still compete for water fertilizer and growth space with cotton plants, so that the growth of the cotton is greatly influenced.
Disclosure of Invention
The cotton sowing period is 4 months and around middle ten days every year, the air temperature is low in the period, the ground temperature condition is used for determining whether the cotton seeds in early spring can normally germinate and emerge, and the improvement of the ground temperature is the work key point in the cotton sowing and emergence stage in early spring. The applicant covers the mulching film immediately after cotton sowing, light and heat irradiated by the sun are absorbed by soil through the mulching film, and the mulching film can prevent heat in the film from diffusing outwards, so that the soil in the film absorbs more heat, the heat dissipation is less, the ground temperature is obviously improved, the requirement of cotton seed germination and seedling emergence on the soil temperature is met, the cotton seedling emergence is neat, and the growth is stable. In early summer, the temperature rises quickly, weeds in cotton fields grow vigorously, red, orange, yellow, green, cyan, blue, purple, brown, gray, black or dark pigments or paints are sprayed on the surface of the mulching film in a directional mode, the light transmittance of the mulching film sprayed with the pigments or paints is weakened, the weeds in the mulching film are isolated from receiving sunlight, the weeds in the mulching film cannot perform normal photosynthesis due to lack of illumination, and the weeds in the mulching film die due to lack of nutrition and starvation of photosynthetic organic matters.
The technical scheme adopted for realizing the purpose comprises the following steps:
preparation before sowing 1
1.1 residual film recovery
After the cotton is harvested, residual films and drip irrigation tapes are timely recovered by adopting a mode of combining mechanical force and manpower.
1.2 straw crushing
The cotton field with the up-to-standard residual film recovery adopts a high-horsepower locomotive to pull a hammer-knife type straw crusher to crush the straws in time, so that the crushing standard of low stubble remaining and short and crushed straws is achieved, the rapid decomposition of the straws is facilitated, and the organic matters of the soil are increased.
1.3 deep application of base fertilizer
Applying high-quality animal manure 15-22.5 m before plowing by adopting an organic and inorganic combined fertilization principle3/hm2Or 1200-1500 kg/hm of vegetable oil residue2Ammonium phosphate and potassium chloride 300kg/hm2+ calcium superphosphate 225kg/hm2And the continuous, balanced and effective soil fertilizer supply is ensured.
1.4 ploughing the land
Ploughing the land, wherein the stubble covering is required to be thorough, the furrow plough is flat, and the plough depth is 33-35 cm. The deep ploughing can be carried out on cotton fields with poor soil texture, more weeds and heavier diseases and insect pests, and the depth is required to be more than 60 cm. The ploughed soil is suitable to be cooled to 5-7 days and then leveled, so that the effects of curing the soil and improving the physical and chemical properties of the soil are achieved.
1.5 preparation of soil before sowing
When the accumulated snow melts in spring and the soil disappears in the day of freezing at night, and the locomotive can enter the ground, the soil leveling frame is used for preserving soil moisture and leveling the ground. Proper moisture and soil preparation, diagonal compound operation of a combined soil preparation machine, cutting, raking, land leveling and leveling, and counterweight according to the conditions of the soil. 5.4m combined land preparation machine, two wheels with power of more than 160 horsepower perform opposite-angle land preparation operation, and the land preparation depth is 4.5-5 cm from head to edge. And mechanically raking the film of the strip field by adopting three rows of tine drill film targets and matching with manual work to pick up residual film and residual stalks. Average field size of 1m 2Surface of earth 10cm2The residual film is less than one. The soil reaches' flat (land leveling), neat (soil edge tidy), loose (surface soil loosening), broken (soil fine breaking), soil moisture (sufficient soil moisture) and clean (soil clean)No weed, straw, residual film and other impurities).
1.6 mulching film selection
According to the design requirement, selecting blue mulching film and a blue light area (420 nm-460 nm, central wavelength: 440 nm); black mulch, white mulch was used as Control (CK).
2 early sowing at proper time
The mulching technology creates conditions for early sowing cotton in proper period. According to the air temperature rising and soil unfreezing conditions, the seeds can be sown when the ground temperature of 5cm is stabilized above 12 ℃. When the cotton is sowed, the ground film is covered, the drip irrigation branch pipes and the auxiliary pipes are laid, the capillary pipes are connected, and the operation and debugging are carried out. During drip irrigation, water is dripped at a small flow rate in a low-pressure state, so that water is vertically infiltrated, and under the traction of cotton root systems towards water, radicles are promoted to extend, and the germination and seedling emergence of cotton are facilitated.
3 spraying of pigments or paints
After 2-3 true leaves grow out from the cotton seedlings, bright red or green or brown or gray or black or purple or dark pigment or paint is directionally sprayed on the surface of the light-transmitting mulching film.
Compared with the prior art, the invention has the following advantages.
1. The environment-friendly control method for weeds in cotton fields is characterized in that the mulching film sprayed with dark pigments or paints is opaque, so that the weeds in the mulching film are prevented from receiving sunlight, and the weeds are withered due to lack of illumination and failure in normal photosynthesis. As can be seen from the table 1, the treatment performance of the blue mulching film is obvious in 3 treatments, the weed coverage of the mulching film 20d, the mulching film 30d and the mulching film 50d is reduced by 87.5%, 89.7% and 94.4% respectively, and the growth and germination of weeds are effectively controlled. The black mulching film treatment has excellent control effect on cotton weeds, and the weed coverage of the mulching film 20d, the mulching film 30d and the mulching film 50d are respectively reduced by 98.7%, 97.5% and 97.2%. The mulching films 20d, 30d and 50d in the white mulching film (CK) treatment area respectively reach the weed coverage of 57.5 percent, 92.5 percent and 100 percent. The invention controls light to prevent and remove weeds, realizes the aims of reduced pesticide application and environmental protection, and has the characteristics of remarkable progress.
2. The environment-friendly control method of weeds in cotton fields can be seen from Table 2The blue plastic film coverage obviously promotes the germination and seedling emergence of the cotton seeds, and shows that the emergence rate is high, the cotton seedlings have good quality, the growth vigor is vigorous, the seedling height is quickly increased, and the cotyledons are large. The coverage of the mulching film for 20d is investigated, the cotton seedling emergence rate of the blue mulching film coverage area is the highest, and is 23.3% higher than that of the black mulching film coverage area and 1.6% higher than that of the white mulching film coverage area. The cover film is investigated for 50d, the cotton seedlings are high, the coverage area of the blue film is 9.4cm higher than that of the black film, and the coverage area of the blue film is 2.8cm higher than that of the white film; the area of each plant leaf is 133.9cm higher than that of the coverage area of the black mulching film 219.7cm higher than the colorless transparent coverage area2. The black mulching film is covered, the weeding effect is good, the black mulching film is opaque, heat generated by illumination is completely isolated above the mulching film, the ground temperature is difficult to rise, effective accumulated temperature conditions required by the growth and development of cotton and peanuts in soil cannot be met, the germination and seedling emergence of the cotton seeds are seriously influenced, the emergence rate is reduced, plants are lacked, ridges are broken, the growth and development of the cotton after seedling formation are greatly influenced, and the cotton yield reduction is caused.
The key of the seedling stage of cotton sowing is to ensure the 'one-time sowing of whole seedlings', and when the 'one-time sowing of whole seedlings' target is realized, the prevention and control of weed damage becomes the key point of field management work. The cotton field is covered with blue mulching film, which is favorable for the germination and seedling emergence of cotton seeds, has strong expression germination vigor, high seedling emergence rate, good quality of cotton seedlings, strong growth vigor, high photosynthetic efficiency, favorable substance accumulation, quick top differentiation, and early and quick growth. After the aim of full-seedling and strong seedling is achieved, the surface of the blue mulching film is directionally sprayed with scarlet pigment, wherein scarlet pigment and blue pigment are black, the black pigment is used for blocking sunlight to irradiate the soil, and weeds in the film are starved and die due to lack of illumination, lack of photosynthetic organic matter nutrition and starvation. The scarlet pigment is sprayed on the cotton seedlings by mistake, and has no adverse effect on the cotton seedlings. The invention applies the principle of blue light quality which is beneficial to seedling emergence and black shading weeding to realize the 'full seedling' of cotton by one time, uniform and strong seedlings and prevent the harm of weeds.
3. The environment-friendly control method for weeds in cotton fields has low cost, and the cost of spraying paint or paint is only 100-150 yuan/hm2The weed harm is reduced, the cotton yield is improved, and the economic benefit is increased by 6000-7500 yuan/hm2And the economic benefit is remarkable.
4. The method for preventing and removing the cotton field weeds in the environment-friendly way reduces the use of chemical herbicides, realizes zero increase of pesticides, reduces the pollution of the pesticides to the environment, has good ecological benefit, and has the characteristics of remarkable progress.
5. According to the environment-friendly control method for cotton field weeds, the light quality is one of factors influencing the germination and seedling emergence of cotton seeds, the blue light is more beneficial to the germination and seedling emergence of crop seeds, the blue mulching film is used for replacing the white mulching film used in large area at present, the process is simple, and the operability is strong. Besides being applied to cotton planting fields, the invention can also select proper red, orange, yellow, green, cyan, blue, purple, silver, gray and other colored mulching films for covering according to the respective light sensitivity differences of crops such as rice, wheat, corn, soybean, sorghum, potato, peanut, sunflower, oil plants, vegetables, melons, woods, fruit trees, gardening flowers and the like, and the herbicide before germination is sprayed on the ground surface during sowing or the pigment or the paint is sprayed on the surface of the mulching film after emergence of seedlings.
Detailed Description
The following examples are intended to illustrate the particular method of operation of the present invention and are not intended to limit the scope of the invention.
Example 1
1) Preparation before sowing
(1) Recovery of residual film
After cotton harvesting is finished, residual films and drip irrigation tapes are timely recovered by adopting a mode of combining mechanical force and manpower.
(2) Straw crushing
The straws are crushed to reach the crushing standard of low stubble residue and short and broken straws, so that the straws are favorable for quick decomposition, and soil organic matters are increased.
(3) Deep application base fertilizer
Applying high-quality animal manure 15-22.5 m before plowing by adopting an organic and inorganic combined fertilization principle3/hm2Or 1200-1500 kg/hm of vegetable oil residue2Ammonium phosphate and potassium chloride 300kg/hm2+ calcium superphosphate 225kg/hm2And the continuous, balanced and effective soil fertilizer supply is ensured.
(4) Soil ploughing
Ploughing the land, wherein the stubble covering is required to be thorough, the furrow plough is flat, and the plough depth is 33-35 cm. The deep ploughing can be carried out on cotton fields with poor soil texture, more weeds and heavier diseases and insect pests, and the depth is required to be more than 60 cm. The ploughed soil is suitable to be cooled to 5-7 days and then leveled, so that the effects of curing the soil and improving the physical and chemical properties of the soil are achieved.
(5) Soil preparation before sowing
When the accumulated snow melts in spring and the soil disappears in the day of freezing at night, and the locomotive can enter the ground, the soil leveling frame is used for preserving soil moisture and leveling the ground. Proper moisture and soil preparation, diagonal compound operation of a combined soil preparation machine, cutting, raking, land leveling and leveling, and counterweight according to the conditions of the soil. 5.4m combined land preparation machine, two wheels with power of more than 160 horsepower perform opposite-angle land preparation operation, and the land preparation depth is 4.5-5 cm from head to edge. And mechanically raking the film of the strip field by adopting three rows of tine drill film targets and matching with manual work to pick up residual film and residual stalks. Average field size of 1m 2Surface of earth 10cm2The residual film is less than one. The soil meets the basic requirements of leveling (land leveling), leveling (soil edge is tidy), loosening (surface soil is loose), crushing (soil is finely crushed), moisture (sufficient moisture), and cleaning (soil is clean and has no weeds, straws, residual films and other impurities).
(6) Mulch film selection
According to design requirements, a blue mulching film (wavelength: 440nm) and a black mulching film are selected, and a white mulching film is used as a Contrast (CK).
2) Early sowing at proper time
The mulching technology creates conditions for early sowing cotton in proper time. According to the air temperature rising and soil unfreezing conditions, the seeding can be carried out when the ground temperature of 5cm is stabilized to be more than 12 ℃. When cotton is sowed, mulching film is covered in time, drip irrigation branch pipes and auxiliary pipes are laid, capillary pipes are connected, and operation and debugging are carried out. During drip irrigation, water is dripped at a low flow rate in a low-pressure state to enable water to vertically infiltrate downwards, and radicles are promoted to extend under the traction of cotton root systems to water, so that the germination and seedling emergence of cotton are facilitated.
3) Spray paint
After 2-3 true leaves grow out of cotton seedlings, the surface of the blue mulching film is directionally sprayed with the scarlet paint, the scarlet paint and the blue mulching film are black, sunlight is isolated on the surface of the mulching film by the black color, weeds in the mulching film are prevented from receiving the sunlight, the weeds cannot perform normal photosynthesis due to lack of illumination, organic nutrition is deficient, and the weeds are starved and died.
4) Field survey
Firstly, before sowing, investigating the base number of weeds in each plot, randomly selecting 4 samples in each plot, wherein each sample is 0.5m multiplied by 0.5m, investigating and recording the number of weeds in the field in the samples, and visually observing the coverage of the weeds in the plot; and (5) surveying the quantity and coverage of weeds in each plot by using the same method at 50d after sowing, meanwhile, weighing the fresh matter mass of the weeds in the sampling points, and calculating the quality control effect.
Secondly, calculating the plant control effect and quality control effect of each treatment on the weeds in the cotton field according to the investigation result:
the plant control effect (%) (1-number of weeds in the treatment area/number of weeds in the control area) × 100%;
the quality control effect (%) (1-the fresh quality of weeds in the treatment area/the fresh quality of weeds in the control area) is multiplied by 100%.
TABLE 1 prevention of weeds in cotton field by mulching with different mulching films
Figure BSA0000271220030000071
Thirdly, film covering for 20d, investigation of emergence rate of each treatment, film covering for 50d, investigation of seedling height and single plant leaf area of each treatment, see table 2 for details
TABLE 2 Effect of different mulching on the quality of the seedlings
Figure BSA0000271220030000072
Example 2
(1) Preparation before broadcast
Recovery of residual film
After the cotton is harvested, residual films and drip irrigation tapes are timely recovered by adopting a mode of combining mechanical force and manpower.
② crushing the straw
The straws are crushed in time to reach the crushing standard of low stubble residue and short and broken straws, so that the straws are favorable for quick decomposition, and soil organic matters are increased.
Thirdly, deep application of base fertilizer
Applying high-quality animal manure 15-22.5 m before plowing by adopting an organic and inorganic combined fertilization principle3/hm2Or 1200-1500 kg/hm of vegetable oil residue2Ammonium phosphate and potassium chloride 300kg/hm2+ calcium superphosphate 225kg/hm2And the continuous, balanced and effective soil fertilizer supply is ensured.
Fourthly, ploughing the land
Ploughing the land, wherein the stubble covering is required to be thorough, the furrow plough is flat, and the plough depth is 33-35 cm. The deep ploughing can be carried out on cotton fields with poor soil texture, more weeds and heavier diseases and insect pests, and the depth is required to be more than 60 cm. The ploughed soil is suitable to be cooled to 5-7 days and then leveled, so that the effects of curing the soil and improving the physical and chemical properties of the soil are achieved.
Fifth, leveling the land
When the accumulated snow melts in spring and the soil disappears in the day of freezing at night, and the locomotive can enter the ground, the soil leveling frame is used for preserving soil moisture and leveling the ground. The soil meets the basic requirements of 'leveling, loosening, breaking, moisture retention and cleaning'.
Selection of mulching film
The blue mulch (wavelength 440nm) is selected according to design requirements.
(2) Early sowing at proper time
The blue mulching technology creates conditions for early sowing cotton in proper period. According to the air temperature rising and soil unfreezing conditions, the seeds can be sown when the ground temperature of 5cm is stabilized above 12 ℃. Spraying pre-emergence herbicide before seeding. And simultaneously sowing, immediately covering a blue mulching film, laying drip irrigation branch pipes and auxiliary pipes, connecting capillary pipes and running and debugging. During drip irrigation, water is dripped at a small flow rate in a low-pressure state, so that water is vertically infiltrated, and under the traction of cotton root systems towards water, radicles are promoted to extend, and the germination and seedling emergence of cotton are facilitated.
Example 3
(1) Preparation before sowing
Firstly, residual film is recovered
After cotton harvesting is finished, residual films and drip irrigation tapes are timely recovered by adopting a mode of combining mechanical force and manpower.
② crushing the straw
The straws are crushed in time to reach the crushing standard of low stubble remaining and short and broken straws, so that the straws can be quickly decomposed, and soil organic matters can be increased.
Thirdly, deep application of base fertilizer
Applying high-quality animal manure 15-22.5 m before plowing by adopting an organic and inorganic combined fertilization principle3/hm2Or 1200-1500 kg/hm of vegetable oil residue2Ammonium phosphate and potassium chloride 300kg/hm2+ calcium superphosphate 225kg/hm2And the continuous, balanced and effective soil fertilizer supply is ensured.
Fourthly, ploughing the land
Ploughing the land, wherein the stubble covering is required to be thorough, the furrow plough is flat, and the plough depth is 33-35 cm. The deep ploughing can be carried out on cotton fields with poor soil texture, more weeds and heavier diseases and insect pests, and the depth is required to be more than 60 cm. The ploughed soil is suitable to be cooled to 5-7 days and then leveled, so that the effects of curing the soil and improving the physical and chemical properties of the soil are achieved.
Fifth, leveling the land
When the accumulated snow melts in spring and the soil disappears in the day of freezing at night, and the locomotive can enter the ground, the soil leveling frame is used for preserving soil moisture and leveling the ground. The soil meets the basic requirements of 'leveling, loosening, breaking, moisture retention and cleaning'.
Selection of mulching film
And selecting white or colorless transparent mulching films according to the design requirements.
(2) Early sowing at proper time
According to the air temperature rising and soil unfreezing conditions, the seeding can be carried out when the ground temperature of 5cm is stabilized to be more than 12 ℃. Spraying the pre-emergence herbicide before sowing or not spraying the pre-emergence herbicide. And simultaneously sowing, immediately covering a white or colorless transparent mulching film, laying drip irrigation branch pipes and auxiliary pipes, connecting capillary pipes and running and debugging. During drip irrigation, water is dripped at a small flow rate in a low-pressure state, so that water is vertically infiltrated, and under the traction of cotton root systems towards water, radicles are promoted to extend, and the germination and seedling emergence of cotton are facilitated.
(3) Spray paint
After 2-3 true leaves grow out of the cotton seedlings, the dark paint is sprayed on the surface of the white mulching film in a directional mode, sunlight is prevented from irradiating the cotton field, weeds in the mulching film are isolated from receiving the sunlight, and the weeds cannot be withered due to normal photosynthesis due to lack of the sunlight.

Claims (3)

1. An environment-friendly control method of weeds in cotton fields is characterized by comprising the following steps: after cotton is sowed, selecting blue or white or colorless transparent or red or orange or yellow or green or cyan or purple mulching film for covering, and after emergence, directionally spraying red or orange or yellow or green or cyan or blue or violet or brown or gray or black or dark pigment or paint on the surface of the mulching film;
2. the method for environmentally controlling weeds in cotton fields according to claim 1, comprising: spraying a pre-emergence herbicide on the surface of a cotton field, and after cotton is sowed, selecting a blue or white or colorless transparent or red or orange or yellow or green or cyan or purple plastic film for covering;
3. The method for environmentally controlling weeds in cotton fields according to claim 1, comprising: according to the sensitivity of different crops such as rice, wheat, corn, soybean, sorghum, potato, peanut, sunflower, oil plants, vegetables, melons, trees, fruit trees and horticultural flowers to light, the mulching film is covered by blue or white or colorless transparent or red or orange or yellow or green or cyan or purple, before sowing, a pre-emergence herbicide is sprayed or after the crops emerge, and red or orange or yellow or green or cyan or blue or purple or brown or gray or black or dark pigment or paint is sprayed on the surface of the mulching film in a directional way.
CN202210383435.3A 2022-04-03 2022-04-03 Environment-friendly control method for weeds in cotton field Pending CN114747448A (en)

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CN112314376A (en) * 2020-11-05 2021-02-05 新疆生产建设兵团第三师农业科学研究所 Dry sowing and wet sowing cultivation method for cotton picked by machine in southern Xinjiang

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Publication number Priority date Publication date Assignee Title
CN105917933A (en) * 2016-05-09 2016-09-07 江西省棉花研究所 Novel method for removing weeds in planting fields of potatoes
CN111528029A (en) * 2020-05-07 2020-08-14 新疆生产建设兵团农业技术推广总站 Method for preventing and removing broadleaf weeds in cotton field by applying pesticide through drip irrigation system
CN112314376A (en) * 2020-11-05 2021-02-05 新疆生产建设兵团第三师农业科学研究所 Dry sowing and wet sowing cultivation method for cotton picked by machine in southern Xinjiang

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