At present, there are problems in the cultivation of insect-resistant cotton: the growing density of insect-resistant hybrid cotton is getting thinner, the yield per unit of production is decreasing, and the benefits of planting cotton are reduced; conventional fertilization has many times, and fertilizer application is inconvenient, resulting in low fertilizer utilization rate and low efficiency. The occurrence of non-point source pollution; herbicide abuse caused by the widespread phenomenon of cotton injury, the lack of herbicide glyphosate detoxification safety agent. In response to the above problems, researchers proposed the reasonable density and management measures of insect-resistant hybrid cotton, developed the production technology of slow and controlled release fertilizers, controlled release materials and special formulations for slow- and controlled-release fertilizers for cotton, and established a special formula for large-scale production of cotton. Release fertilizer production line, put forward technical specifications for the safe use of cotton herbicides and glyphosate detoxification safety agent, agricultural spray bucket water purification funnel.
Insect-resistant Hybrid Cotton High-yield Light Simplification Integrated Technology: (1) Proposed the technology of densification and nitrogen reduction of insect-resistant hybrid cotton: the row spacing is reduced by about 100 cm from 120 cm, the harvesting density is 1800-2000 plants/mu; nitrogen (N) is reduced to 20 Kilograms per gram, increase potassium oxide (K2O) 5 kg/mu, nitrogen, phosphorus and potassium ratio 1:0.4-0.5:0.8-0.9, increase organic fertilizer, and measure soil fertilization; Whole process adjustment: Dicomimol 6-8 Grams/acre. (2) The specially formulated slow and controlled release fertilizer can basically synchronize the nutrient release rate of the fertilizer with the growth of the cotton. The single application of the base fertilizer can meet the needs of the whole growth period, and the frequency of fertilizer application is reduced to 1-2 times, and the labor saving is 50%. Compared with ordinary nutrients such as nutrients, the utilization rate of fertilizers is increased by more than 10%; under the condition of maintaining the same yield, the amount of fertilized fertilizer per unit area is reduced by more than 15%, and the cost of fertilization is saved by more than 20%; it is also possible to prevent problems such as “fertilizer encounterâ€. There is a refuge effect. (3) Formulate technical regulations for the safe use of herbicides in cotton fields; develop anti-toxic agents and antidote to reduce the toxicity of glyphosate to cotton; spray tank water purifiers have anti-blocking function and are suitable for many types of nozzles.
Economic benefits, social benefits and ecological benefits achieved during demonstration and promotion
Insect-resistant hybrid cotton light and simple integration technology is applied in the middle reaches of the Yangtze River, with savings of 69.42-170 yuan/mu for physical and chemical input, 50-73.31 kg/mu for seed cotton, and 300-439.86 yuan/mu for output value. RMB 509.28/mu provides strong technical support for the creation of high-yield products and the creation of “thousand pound cottonâ€.
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