Technology Promotion: Seven Items For Cotton Planting

< p > improved variety.

When purchasing < a href= "//www.sjfzxm.com/news/" > good variety < /a >, do not blindly pursue new and high yield, and choose according to their respective land productivity, yield and management level.

Cotton varieties with good resistance to insect and disease resistance, strong growth potential, concentrated boll setting, easy management and early maturity without premature decay should be selected.

The selection of new cotton varieties should be carried out on the basis of experiments and demonstrations. In the first year, a small number of trials should be made. If the disease ability, growth vigor, boll setting ability and yield increase performance exceed those of the original varieties, the planting will be extended in second years.

To purchase high-quality cotton seeds, we should go to the normal seed department to choose high-quality seeds with good purity, high germination rate and high quality.

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< p > fertilizer preparation

Before a href= "http://cailiao.sjfzxm.com/Matertial/show/default.aspx" > cotton sowing > /a >, we should apply base fertilizer, increase organic fertilizer, apply potash fertilizer and supplement micronutrient fertilizer.

According to the ratio of N, P and K fertilizer 3 to 1: 3 in cotton field, formulated fertilization scheme was formulated to achieve balanced fertilization.

In the cotton fields before planting, 1500~2500 kg of high quality organic fertilizer per mu, 25~30 kg of high quality nitrogen, phosphorus and potassium compound fertilizer, 1 kg of zinc fertilizer and boron fertilizer and 1 kg of high nitrogen, phosphorus and potassium fertilizers, or 15~20 kg of diammonium phosphate, 10~15 kg of potassium chloride or potassium sulphate, 5 to 7.5 kg of urea instead of compound fertilizer are applied to each cotton field.

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< p > preparation of plastic film

Cotton plastic film mulching has the advantages of increasing temperature, conserving moisture, stabilizing soil moisture, improving soil physical and chemical properties and nutrient status, promoting cotton growth process and improving yield structure.

Cotton fields can be selected from 0.04 to 0.08 millimeters, 90 centimeters wide and 3 kg of plastic film.

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< p > pesticide preparation

At present, coated seeds are generally used, and pesticides and pesticides are not necessary to prepare pesticides.

Herbicides were prepared with 48% fluorobul 80 ml, or 90% herones 30~40 ml, or 50% acetochlor EC 100 milliliters per mu.

Fluoride was used 3~5 days before seeding, and other herbicides were used after covering the soil.

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< p > storing moisture.

Before planting, we should make timely soil moisture, pay attention to preserving soil moisture, and ensure that soil moisture and soil moisture are good.

For cotton fields that have been irrigated and moisture content in winter, harrow soil should be raked or covered with plastic film to reduce water evaporation. Cotton fields with poor moisture content should be irrigated in time and watered for 10~15 days before planting.

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< p > better.

First of all, we should remove the residual litter from cotton fields, such as firewood and plastic film, so as to reduce the pollution of < a href= "//www.sjfzxm.com" > cotton field pollution < /a > disease, and create a good environment for cotton growth.

On the basis of soil moisture, we should plough and harrow deeply, and deep plough more than 20 centimeters, so as to break the plow bottom, break the soil harden, improve soil properties, and promote the growth of cotton roots.

After ploughing, the cotton fields should be raked in time, and the soil preparation should be completed 3~5 days before planting.

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< p > preparation technology

First of all, we should prepare a full seeding technique and master suitable seeding. Secondly, we should make good rational planting techniques, determine the good spacing according to the characteristics of the selected varieties and the conditions of soil fertility. Third, we should prepare the pest control techniques at seedling stage and apply the pest control methods from the beginning of sowing.

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