Method for solving empty stalk problem caused by maldevelopment of corn ears

Abstract

The invention discloses a method for solving the problem of hollow stalks caused by maldevelopment of corn ears. The method comprises the following specific steps: (1) selecting a variety suitable for local and carrying out seed treatment; (2) land is leveled, base fertilizer is additionally applied, and water and fertilizer uniformity in the growing period is ensured; (3) according to the characteristics of the variety, in combination with three-dimensional conditions and according to a high-yield standard, timely sowing is performed by adopting a reasonable density (4500-6000 plants per mu), and it is ensured that seedlings emerge neatly, are strong and have strong resistance; (4) weeding: weeding in a closed manner before seedling emergence; weeding after seedling: in the 3-5-leaf stage of the corn and the 2-4-leaf stage of weeds, carrying out weeding after seedling by adopting 0.136% of rub.ethylidene.brassica campestris WP 5000 times, 1.0% of lecithin ethyl ester 5000 times and a corn post-seedling herbicide; according to the method, development of corn roots, stems, leaves and clusters is promoted, the proportion of empty stems is reduced, and the purpose of keeping and increasing the yield is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of corn planting, and in particular relates to a method for solving the problem of empty stalks caused by poor development of corn ears. Background Art

[0002] In the corn production process, after corn seeding and germination, the plant enters the tasseling and silking stage, and the tassel emerges. Pollen is released, the tassel spins silk, and the pollen and silk meet, and normal pollination begins. After pollination, the grains mature and form economic yields. However, in the specific field production process in recent years, due to the lack of stimulation of the variety's own advantageous growth potential, frequent abnormal climate, and unreasonable cultivation measures, the emergence of seedlings, stiff and yellow seedlings after seedlings, poor ear differentiation, abnormal development of the tassel at the top, inadequate nutrient delivery, few tassels, low pollen activity, and even withering, the vitality of pollen and silk decreases or has no vitality, or the flowering period does not meet well, resulting in normal pollination and fertilization, and unable to form economic yields. This phenomenon is called empty stalks in production. In the current production, the proportion of empty stalks in some major corn producing areas has reached 10% or more, and in some areas, the plots have even reached 15%, which has had a serious impact on corn production.

[0003] In response to this situation, growers have explored some measures and methods, such as choosing varieties suitable for the local area as much as possible, choosing sparse planting to reduce planting density to increase ventilation and light transmission, and using reasonable water and fertilizer management and pest and disease control measures as much as possible in the management of water, fertilizer, pests and weeds to ensure the normal differentiation of the ear, the normal development and pollen release of the male ear, promote the encounter of flowering period, and enhance the activity of pollen filaments to avoid the appearance of empty stems. However, in the specific production process, it is still not a good solution to the problem that the high-quality genes of the variety itself cannot be fully exerted. In order to prevent the occurrence of some seed-borne and soil-borne pests and diseases, chemical agents are used to coat seeds before sowing. These chemical agents inhibit the growth of young shoots and new roots when encountering abnormal changes in the external environment during germination and emergence, resulting in stiff yellow seedlings or uneven emergence, and the application of post-emergence herbicides affects the development of the ear, and the high temperature and drought during the silking and tasseling period cause pollen abortion, forming empty stems.

[0004] Therefore, the prior art has the following shortcomings and deficiencies in the specific application process: 1. It fails to stimulate the advantages of the variety's own high-quality genetic genes and the variety's growth potential, and fails to solve the problems of uneven emergence, stiff and yellow seedlings after emergence, and empty stalks caused by too many three types of seedlings during corn germination and emergence due to sudden changes in the external environment (high temperature and drought, low temperature and frost damage) or soil salinization (waterlogging), or the stress and harm caused by the residual herbicides from the previous crop; 2. It is impossible to systematically induce and start the secondary metabolism of corn in the growth process in time, regulate the activity of enzymes and functional proteins in crops, improve the crop's stress resistance defense system, and solve the problems of uneven seedling emergence, stiff and yellow seedlings after emergence, and empty stalks caused by the frequent stress and harm caused by abnormal external environment (soil salt damage, low temperature, frost damage, high temperature, drought, and waterlogging) during the growth process; 3. It cannot effectively solve the problem of empty stems caused by the pesticide damage caused by different seedling conditions and sudden changes in the external environment during the control of diseases, insect pests and weeds, or the problem of too many stiff yellow seedlings and three types of seedlings due to the lack of thoroughness of control during crop growth; 4. Failure to timely replenish the body's own nutrition, endogenous hormones or enzymes during the emergence and weaning period of crops, resulting in the problem of too many yellow seedlings and three types of seedlings, resulting in empty stems; 5. It is unable to effectively solve the problem of empty stems caused by the self-toxic stress caused by continuous cropping, such as the yellowed seedlings and the excessive number of Class III seedlings; 6. Failure to effectively solve the problem of pest control and water and fertilizer application, due to the poor absorption and transmission of the used pesticides or the insufficient transpiration pull caused by weather factors, resulting in incomplete pest control or empty stems caused by lack of water and fertilizer; 7. Solve the problem of empty stems caused by the different periods of pollen shedding between male flowers and female spike filaments, or low pollen activity caused by high temperature and drought during pollen shedding, and poor exposure of filaments. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art and to provide a method for solving the problem of empty stalks caused by poor development of corn ears.

[0006] Technical solution: A method for solving the problem of empty stalks caused by poor development of corn ears, the specific steps include: (1) Select varieties suitable for the local area and perform seed treatment; (2) Level the land and apply more basal fertilizer to ensure uniformity of water and fertilizer during the growing period; (3) Based on the characteristics of the variety and combined with the three-dimensional conditions, a reasonable density (4,500-6,000 plants / mu) is adopted according to the high-yield standard and timely sowing is carried out to ensure uniform emergence, strong seedlings and strong resistance; (4) Weeding: Pre-emergence closed weeding; Post-emergence weeding: When corn is in the 3-5 leaf stage and weeds are in the 2-4 leaf stage, use 0.136% red indole ethyl brassica WP 5000 times + 1.0% lecithin ethyl ester 5000 times + corn post-emergence herbicide to carry out post-emergence weeding; (5) Water, fertilizer, disease and insect pest control, including leaf surface and root base. The leaf surface control includes the seedling stage, large trumpet stage, and grain formation stage. The root base control includes the first watering after seedlings, the second watering after seedlings (small trumpet stage), the third watering after seedlings, the fourth watering after seedlings (from tasseling to silking stage), the fifth watering after seedlings (grain filling stage), and the sixth watering after seedlings (milky stage).

[0007] A further improvement of the present invention is that in step (1), for naked seeds, 0.136% red indole acetyl rapeseed WP (drug-seed ratio 1:2000-3000) + 21% Rongduole nutrient solution (3% N + 5% P + 3% K + 5% Bn + 5% Zn + 50g / L oligosaccharides) (1:100 times) + seed coating agent are used for coating during commercial processing.

[0008] A further improvement of the present invention is that in step (1), for the commercially processed seeds, a secondary coating is carried out before sowing using 0.136% red indole acetyl phosphate WP (drug-seed ratio 1:2000-3000) + 21% Rongduole nutrient solution (3% N + 5% P + 3% K + 5% Bn + 5% Zn + 50g / L oligosaccharides) (1:100 times) + aqueous polyurethane / acrylic acid film-forming agent.

[0009] A further improvement of the present invention is that in step (2), in the spring corn planting area: before winter or early spring deep plowing, monoammonium phosphate or diammonium phosphate is applied at 6-7 kg / mu + Ronggenmei active silicon functional bacterial agent 40 kg / mu and then combined with deep plowing to turn it into the soil for planting.

[0010] A further improvement of the present invention is that in step (2), in the summer corn sowing area: 10 kg of urea + monoammonium phosphate or diammonium phosphate at 5 kg / mu + Ronggenmei active silicon functional bacterial agent 40 kg / mu are spread and then turned into the soil for planting.

[0011] A further improvement of the present invention is that in step (4), the spraying is carried out after 18:00 in the afternoon, the temperature is between 15 and 25°C, the relative humidity is above 65%, and the wind speed during spraying is below 4 m / s.

[0012] A further improvement of the present invention is that in step (5), the seedling stage is 4 to 5 leaves, and in combination with the prevention and control of pests and diseases (black beetles, gray weevils), 0.136% red indole ethyl rapeseed WP 3 g / mu + 1.0% lecithin ethyl ester 3 ml / mu + seaweed multivitamin 50 ml / mu + insecticide (fungicide) spraying is used; in the large trumpet mouth stage, in combination with the prevention and control of pests and diseases (corn borers, red spiders, aphids, etc.), 0.136% red indole ethyl rapeseed WP 3 g / mu + 1.0% lecithin ethyl ester 3 ml / mu + 150g / L liquid boron fertilizer 50 ml / mu + fungicide (fungicide) is used for prevention and control; in the grain establishment stage, in combination with the prevention and control of pests and diseases (black beetles, gray weevils), 0.136% red indole ethyl rapeseed WP is used. 3 grams / mu + 1.0% lecithin ethyl ester 3 ml / mu + Rongyou (potassium polyphosphate) 100 grams / mu + insecticide (fungicide) spraying.

[0013] A further improvement of the present invention is that in step (5), the first watering after seedlings: dripping 35-40 cubic meters / mu of water according to the soil moisture conditions, dripping clean water 0.5 hours later, dripping Bihu 5g / mu + urea 5-6kg / mu + diammonium phosphate 1kg / mu + potash fertilizer 2kg / mu + zinc fertilizer 1kg / mu + Anrongle 10ml; the second watering after seedlings (small trumpet mouth stage): dripping 50 cubic meters / mu of water, dripping clean water 0.5 hours later, dripping urea 6kg / mu + diammonium phosphate 3kg / mu + potash fertilizer 3kg / mu + Rongdimei (100g / L monosilicic acid) 500ml / mu + Anrongle 10ml; the third watering after seedlings: dripping 50 cubic meters / mu of water, dripping clean water 0.5 hours later, dripping urea 8kg / mu + diammonium phosphate 4kg / mu + potash fertilizer 5kg / mu + Rongdimei (100g / L monosilicic acid) 500ml / mu + Anrongle 10ml.

[0014] A further improvement of the present invention is that in step (5), the fourth watering after seedlings (from tasseling to silking stage): dripping 50 cubic meters / mu of water, dripping 10 kg / mu of urea + 4 kg / mu of diammonium phosphate + 5 kg / mu of potash fertilizer + 10 ml of Anrong Le after dripping clean water for 1 hour; the fifth watering after seedlings (grain filling stage): dripping 50 cubic meters / mu of water, dripping clean water for 1 hour and dripping 5 kg / mu of urea + 1 kg / mu of diammonium phosphate + 5 kg / mu of potash fertilizer + 10 ml of Anrong Le; the sixth watering after seedlings (milky stage): dripping 35 cubic meters / mu of water, dripping clean water for 1 hour and dripping 3 kg / mu of potash fertilizer and 10 ml of Anrong Le.

[0015] Compared with the prior art, the method provided by the present invention for solving the problem of empty stalks caused by poor development of corn ears has at least the following beneficial effects: This program focuses on early prevention of diseases and pests, promoting the development of corn roots, stems, leaves, and ears, and improving photosynthetic efficiency during the growth period, improving the uniformity of plants in the field, promoting uniform differentiation of ears, increasing the number of grains per ear, enhancing corn resistance, and reducing the proportion of empty stalks, so as to achieve the goal of maintaining and increasing production.

[0016] 1. By treating the seeds before sowing, on the one hand, the seed dormancy can be broken in time when the seedlings emerge after sowing, and at the same time, systematic self-driving and induction can be implemented to drive the early operation of mitochondrial function, so that the germinating seeds and seedlings can obtain more energy value, strengthen the power of new roots and new buds, and promote the early and fully stable expression of crop high-quality genes, so as to promote the early rooting, strong roots, early emergence, strong seedlings, and uniform emergence of seeds! Effectively avoid or solve the problems of poor emergence, uneven seedlings, rotten seeds, and powdered seeds caused by low germination potential of the seeds themselves, or external factors such as low temperature, drought, and herbicide residues during the emergence period; at the same time, induce the crop's own immune system to start early, strengthen the early acquisition and transmission of signals, and carry out immune training in time, so as to enhance the ability of emerging seedlings to resist low temperature, drought, soil salinity and salinization, and pests and diseases; 2. After seedling emergence, the agronomic growth traits such as stem fresh weight, root fresh weight and root length are more than 10% higher than those under conventional management. The physiological and biochemical indicators such as chlorophyll content, leaf protein content and respiratory rate of new leaves are increased by 10% or more compared with conventional management, laying a solid foundation for reducing or lowering the control rate. 3. Timely replenishment of endogenous hormones and nutrients required for plant growth from rooting and germination, avoiding growth abnormalities and premature aging caused by physiological disorders of plants due to nutrition, endogenous hormone deficiency, excess or disorder caused by seed quality problems; 4. It not only strengthens the photosynthesis of leaves and synthesizes more photosynthetic products, but also transports more photosynthetic products to the roots in the process of promoting the development of leaves and ears, strengthens the development of the root system and lasting vitality, and avoids the phenomenon of premature aging of plants caused by various factors; 5. It coordinates the synchronization of the development of female and male spikes of the plant, improves the vitality and active period of pollen and filaments, and strengthens fertilization, pollination and filling. It completes the normal formation of plant morphological building materials (fruit spikes) and ensures that the economic yield meets the standards; 6. By adding 0.136% of red indole ethyl brassica WP and 1.0% lecithin ethyl ester when applying fungicides, insecticides and herbicides, the photolysis loss caused by sunlight exposure and the oxidation loss caused by contact with air during the use of pesticides and fertilizers are solved, and the transportation and conduction of pesticides and fertilizers in crops are promoted. At the same time, it can effectively solve the pesticide and fertilizer damage caused by improper application of pesticides and fertilizers or weather factors when using pesticides and fertilizers, as well as the explicit or implicit stress caused by the pesticides themselves to the plants, thereby achieving safe, scientific and efficient use of pesticides and fertilizers, avoiding and reducing the waste of pesticides and fertilizers and pollution to the environment. DETAILED DESCRIPTION

[0017] Various exemplary embodiments of the present invention are now described in detail. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. The following description of at least one exemplary embodiment is actually only illustrative and is not intended to be any limitation on the present invention and its application or use.

[0018] The techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and devices should be considered as part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0019] A method for solving the problem of empty stalks caused by poor development of corn ears, the specific steps comprising: (1) Select varieties suitable for the local area and perform seed treatment; (2) Level the land and apply more basal fertilizer to ensure uniformity of water and fertilizer during the growing period; (3) Based on the characteristics of the variety and combined with the three-dimensional conditions, a reasonable density (4,500-6,000 plants / mu) is adopted according to the high-yield standard and timely sowing is carried out to ensure uniform emergence, strong seedlings and strong resistance; (4) Weeding: Pre-emergence closed weeding; Post-emergence weeding: When corn is in the 3-5 leaf stage and weeds are in the 2-4 leaf stage, use 0.136% red indole ethyl brassica WP 5000 times + 1.0% lecithin ethyl ester 5000 times + corn post-emergence herbicide to carry out post-emergence weeding; (5) Water, fertilizer, disease and insect pest control, including leaf surface and root base. The leaf surface control includes the seedling stage, large trumpet stage, and grain formation stage. The root base control includes the first watering after seedlings, the second watering after seedlings (small trumpet stage), the third watering after seedlings, the fourth watering after seedlings (from tasseling to silking stage), the fifth watering after seedlings (grain filling stage), and the sixth watering after seedlings (milky stage).

[0020] A further improvement of the present invention is that in step (1), for naked seeds, 0.136% red indole acetyl rapeseed WP (drug-seed ratio 1:2000-3000) + 21% Rongduole nutrient solution (3% N + 5% P + 3% K + 5% Bn + 5% Zn + 50g / L oligosaccharides) (1:100 times) + seed coating agent are used for coating during commercial processing.

[0021] A further improvement of the present invention is that in step (1), for the commercially processed seeds, before sowing, 0.136% red indole acetyl phosphate WP (drug-seed ratio 1:2000-3000) + 21% Rongduole nutrient solution (3% N + 5% P + 3% K + 5% Bn + 5% Zn + 50g / L oligosaccharides) (1:100 times) + water-based polyurethane / acrylic acid film-forming agent are used for secondary packaging.

[0022] A further improvement of the present invention is that in step (2), in the spring corn planting area: before winter or early spring deep plowing, monoammonium phosphate or diammonium phosphate is applied at 6-7 kg / mu + Ronggenmei active silicon functional bacterial agent 40 kg / mu and then combined with deep plowing to turn it into the soil for planting.

[0023] A further improvement of the present invention is that in step (2), in the summer corn sowing area: 10 kg of urea + monoammonium phosphate or diammonium phosphate at 5 kg / mu + Ronggenmei active silicon functional bacterial agent 40 kg / mu are spread and then turned into the soil for planting.

[0024] A further improvement of the present invention is that in step (4), the spraying is carried out after 18:00 in the afternoon, the temperature is between 15 and 25°C, the relative humidity is above 65%, and the wind speed during spraying is below 4 m / s.

[0025] A further improvement of the present invention is that in step (5), the seedling stage is 4 to 5 leaves, and in combination with the prevention and control of pests and diseases (black beetles, gray weevils), 0.136% red indole ethyl rapeseed WP 3 g / mu + 1.0% lecithin ethyl ester 3 ml / mu + seaweed multivitamin 50 ml / mu + insecticide (fungicide) spraying is used; in the large trumpet mouth stage, in combination with the prevention and control of pests and diseases (corn borers, red spiders, aphids, etc.), 0.136% red indole ethyl rapeseed WP 3 g / mu + 1.0% lecithin ethyl ester 3 ml / mu + 150g / L liquid boron fertilizer 50 ml / mu + fungicide (fungicide) is used for prevention and control; in the grain establishment stage, in combination with the prevention and control of pests and diseases (black beetles, gray weevils), 0.136% red indole ethyl rapeseed WP is used. 3 grams / mu + 1.0% lecithin ethyl ester 3 ml / mu + Rongyou (potassium polyphosphate) 100 grams / mu + insecticide (fungicide) spraying.

[0026] A further improvement of the present invention is that in step (5), the first watering after seedlings: dripping 35-40 cubic meters / mu of water according to the soil moisture conditions, dripping clean water 0.5 hours later, dripping Bihu 5g / mu + urea 5-6kg / mu + diammonium phosphate 1kg / mu + potash fertilizer 2kg / mu + zinc fertilizer 1kg / mu + Anrongle 10ml; the second watering after seedlings (small trumpet mouth stage): dripping 50 cubic meters / mu of water, dripping clean water 0.5 hours later, dripping urea 6kg / mu + diammonium phosphate 3kg / mu + potash fertilizer 3kg / mu + Rongdimei (100g / L monosilicic acid) 500ml / mu + Anrongle 10ml; the third watering after seedlings: dripping 50 cubic meters / mu of water, dripping clean water 0.5 hours later, dripping urea 8kg / mu + diammonium phosphate 4kg / mu + potash fertilizer 5kg / mu + Rongdimei (100g / L monosilicic acid) 500ml / mu + Anrongle 10ml.

[0027] A further improvement of the present invention is that in step (5), the fourth watering after seedlings (from tasseling to silking stage): dripping 50 cubic meters / mu of water, dripping 10 kg / mu of urea + 4 kg / mu of diammonium phosphate + 5 kg / mu of potash fertilizer + 10 ml of Anrong Le after dripping clean water for 1 hour; the fifth watering after seedlings (grain filling stage): dripping 50 cubic meters / mu of water, dripping clean water for 1 hour and dripping 5 kg / mu of urea + 1 kg / mu of diammonium phosphate + 5 kg / mu of potash fertilizer + 10 ml of Anrong Le; the sixth watering after seedlings (milky stage): dripping 35 cubic meters / mu of water, dripping clean water for 1 hour and dripping 3 kg / mu of potash fertilizer and 10 ml of Anrong Le.

[0028] In summary, the method provided by the present invention for solving the problem of empty stalks caused by poor development of corn ears has the following advantages: 1. Starting from seed treatment, stimulate the high-quality genetic advantages of the variety itself, stimulate the variety potential, induce and timely start secondary metabolism, regulate the activity of enzymes and functional proteins in crops, and produce corresponding metabolites. Strengthen the crop stress resistance defense system, strengthen the rapid accumulation of stress resistance defense substances in crops, avoid or reduce the losses caused by various adversities, improve variety resistance and adaptability, solve the stress and harm caused by frequent abnormal external environment (soil salt damage, low temperature, frost damage, high temperature, drought, waterlogging) during the growth process, and the stress and harm caused by pesticides and fertilizers to the normal growth of plants during the prevention and control of pests, diseases and weeds and water and fertilizer management, and solve the self-toxic stress and harm caused by continuous cropping; Combined with the prevention and control of diseases, insects, and weeds in the seedling stage, timely systematic induction is implemented for corn seedlings and the secondary metabolism of corn growth is timely started, the activity of enzymes and functional proteins in corn seedlings is regulated, the stress resistance defense system is strengthened, and the stress and harm caused by frequent abnormal external environment (soil salt damage, low temperature, frost damage, high temperature, drought, and waterlogging) during the growth process are solved. The problems of uneven seedling emergence, stiff and yellow seedlings after emergence, and empty stalks caused by too many type three seedlings; at the same time, the problem of empty stalks caused by stiff and yellow seedlings and too many type three seedlings due to drug damage caused by different seedling conditions and sudden changes in the external environment or the thoroughness of prevention and control during the prevention and control of diseases, insects, and weeds is solved.

[0029] By starting with seed treatment, we can stimulate the advantages of the variety's own high-quality genetic genes and the variety's growth potential, and solve the problems of uneven emergence, stiff and yellow seedlings after emergence, and empty stalks caused by too many Type III seedlings due to stress and harm caused by sudden changes in the external environment (high temperature and drought, low temperature and frost damage) or soil salinization (waterlogging), or residual herbicides from the previous crop during corn germination and emergence. At the same time, we can effectively solve the problems of stiff and yellow seedlings and empty stalks caused by too many Type III seedlings due to self-toxic stress and harm caused by repeated cropping.

[0030] It can solve the problem of empty stems caused by the different periods of pollen shedding between male flowers and female spike filaments, or low pollen activity caused by high temperature and drought during pollen shedding, and poor exposure of filaments.

[0031] 2. Solve the phenomena of abnormal growth and premature aging caused by physiological disorders caused by lack, excess or disorder of endogenous hormones and nutrition during growth; From the beginning of seed rooting and germination, timely supplementation of the crop's own nutrients, endogenous hormones or enzymes should be implemented to completely solve the problem of stiff and yellow seedlings and empty stems caused by too many Type 3 seedlings during the seedling and weaning period due to deficiencies and insufficiency of the crop's own nutrients, endogenous hormones or enzymes.

[0032] It can effectively solve the problem of empty stems caused by incomplete pest and disease control or lack of nutrients due to the poor systemic conductivity of the agents used or insufficient transpiration pull caused by weather factors during pest and disease control and water and fertilizer application.

[0033] 3. Strengthen primary metabolism, regulate photosynthesis, respiration, metabolism of carbon, nitrogen, protein and genetic material, balance the relationship between vegetative growth and reproductive growth in the process of synthesizing more photosynthetic products and promoting physiological and biochemical metabolism, strengthen the healthy growth of plants, promote the normal development of roots, stems, leaves and pregnant ears, coordinate the synchronization of male and female ears, enhance the activity of pollen and filaments, ensure normal pollination and fertilization, development and filling of ear, complete the normal formation of plant morphological construction materials (ears), and ensure that economic output meets the standards.

[0034] 4. It realizes the safe, scientific and efficient use of pesticides and fertilizers, avoiding and reducing the waste of pesticides and fertilizers and the pollution to the environment.

[0035] The invention takes measures according to local conditions, selects high-yield, high-resistance and high-quality varieties suitable for local planting, adopts chemical seed coating agents for seed coating and seed mixing, and cultivates intensively to ensure that the seedlings are sufficient, even and uniform; determines a suitable planting density according to the variety, soil fertility and planting method, which is beneficial to ventilation and light transmission, improves photosynthetic capacity, increases ear nutrition, promotes ear differentiation and reduces the empty stalk rate; manages water, fertilizer and pests and diseases to ensure sufficient nutrient and water supply and reduce the empty stalk rate; performs artificial assisted pollination during the silking period of corn, and vibrates the male flowers with a pull rope after the dew dries up on a sunny day, once a day for 2 to 3 times, which is beneficial to pollen scattering, increases pollination opportunities and improves the fruit setting rate.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A method for solving the problem of empty stalks caused by poor development of corn ears, characterized in that: The specific steps include: (1) Select varieties suitable for the local area and perform seed treatment; (2) Level the land and apply more basal fertilizer to ensure uniformity of water and fertilizer during the growing period; (3) Based on the characteristics of the variety and combined with the three-dimensional conditions, a reasonable density (4,500-6,000 plants / mu) is adopted according to the high-yield standard and timely sowing is carried out to ensure uniform emergence, strong seedlings and strong resistance; (4) Weeding: Pre-emergence closed weeding; Post-emergence weeding: When corn is in the 3-5 leaf stage and weeds are in the 2-4 leaf stage, use 0.136% red indole ethyl brassica WP 5000 times + 1.0% lecithin ethyl ester 5000 times + corn post-emergence herbicide to carry out post-emergence weeding; (5) Water, fertilizer, disease and insect pest control, including leaf surface and root base. The leaf surface control includes the seedling stage, large trumpet stage, and grain formation stage. The root base control includes the first watering after seedlings, the second watering after seedlings (small trumpet stage), the third watering after seedlings, the fourth watering after seedlings (from tasseling to silking stage), the fifth watering after seedlings (grain filling stage), and the sixth watering after seedlings (milky stage).

2. A method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In the step (1), for naked seeds, 0.136% red indole acetyl ...

3. A method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In the step (1), for the commercially processed seeds, a secondary coating is performed before sowing using 0.136% red indole acetyl phosphate WP (drug-seed ratio 1:2000-3000) + 21% Rongduole nutrient solution (3% N + 5% P + 3% K + 5% Bn + 5% Zn + 50g / L oligosaccharide) (1:100 times) + aqueous polyurethane / acrylic acid film-forming agent.

4. The method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In step (2), in the spring corn planting area: before winter or early spring deep plowing, spread monoammonium phosphate or diammonium phosphate at 6-7 kg / mu + Ronggenmei active silicon functional fungus agent 40 kg / mu and then combine with deep plowing to turn it into the soil for planting.

5. The method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In step (2), in the summer corn planting area: 10 kg of urea + monoammonium phosphate or diammonium phosphate at 5 kg / mu + Ronggenmei active silicon functional bacterial agent 40 kg / mu are spread and then turned into the soil for planting.

6. The method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In the step (4), the spraying is carried out after 18:00 in the afternoon, the temperature is between 15 and 25°C, the relative humidity is above 65%, and the wind speed during the spraying is below 4 m / s.

7. The method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In the step (5), the seedling stage is the 4-5 leaf stage, and combined with the prevention and control of pests and diseases (black beetles, gray weevils), 0.136% red indole ethyl rapeseed WP 3 g / mu + 1.0% lecithin ethyl ester 3 ml / mu + seaweed multivitamin 50 ml / mu + insecticide (fungicide) spraying is used; the large trumpet mouth stage is combined with the prevention and control of pests and diseases (corn borers, red spiders, aphids, etc.), and 0.136% red indole ethyl rapeseed WP 3 g / mu + 1.0% lecithin ethyl ester 3 ml / mu + 150g / L liquid boron fertilizer 50 ml / mu + fungicide (bactericide) is used for prevention and control; the grain establishment stage is combined with the prevention and control of pests and diseases (black beetles, gray weevils), and 0.136% red indole ethyl rapeseed WP is used. 3 grams / mu + 1.0% lecithin ethyl ester 3 ml / mu + Rongyou (potassium polyphosphate) 100 grams / mu + insecticide (fungicide) spraying.

8. The method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In the step (5), the first watering after seedlings: dripping 35-40 cubic meters / mu of water according to the soil moisture conditions, dripping 5 grams / mu of Bihu + 5-6 kg / mu of urea + 1 kg / mu of diammonium phosphate + 2 kg / mu of potassium fertilizer + 1 kg / mu of zinc fertilizer + 10 ml of Anrongle after dripping clean water for 0.5 hours; the second watering after seedlings (small trumpet mouth stage): dripping 50 cubic meters / mu of water, dripping clean water for 0.5 hours, then dripping 6 kg / mu of urea + 3 kg / mu of diammonium phosphate + 3 kg / mu of potassium fertilizer + 500 ml / mu of Rongdimei (100 g / L monosilicic acid) + 10 ml of Anrongle; the third watering after seedlings: dripping 50 cubic meters / mu of water, dripping 8 kg / mu of urea + 4 kg / mu of diammonium phosphate + 5 kg / mu of potassium fertilizer + 500 ml / mu of Rongdimei (100 g / L monosilicic acid) + 10 ml of Anrongle after dripping clean water for 0.5 hours.

9. The method for solving the problem of empty stalks caused by poor development of corn ears according to claim 1, characterized in that: In the step (5), the fourth watering after seedlings (from tasseling to silking stage): dripping 50 cubic meters / mu of water, dripping 10 kg / mu of urea + 4 kg / mu of diammonium phosphate + 5 kg / mu of potash fertilizer + 10 ml of Anrongle after dripping clean water for 1 hour; the fifth watering after seedlings (grain filling stage): dripping 50 cubic meters / mu of water, dripping 5 kg / mu of urea + 1 kg / mu of diammonium phosphate + 5 kg / mu of potash fertilizer + 10 ml of Anrongle after dripping clean water for 1 hour; the sixth watering after seedlings (milky stage): dripping 35 cubic meters / mu of water, dripping 3 kg / mu of potash fertilizer and 10 ml of Anrongle after dripping clean water for 1 hour.