Key points of cotton science fertilization technology

　　 1. Based on organic fertilizer, apply enough base fertilizer. Soil preparation, timely spraying disinfectant add a new lipid membrane 800 times of soil disinfection, and Shizujifei Mushi 2000 to 3000 kg of farmyard manure, improving fattening root absorption capacity, activation of the soil, prevent compaction and maintain the root Ecological balance.

 

　　 2. Reduce the administration of diammonium phosphate. Use of nitrogen, phosphorus and potassium compound fertilizer material, can also be used nitrogen, phosphorus and potassium fertilizer three base fertilizer 15 to 40 kg. When using compound fertilizer, it is combined with spraying 800 times of new high-fat film to improve the utilization rate of effective components of nutrient fertilizer, and at the same time it can improve the disease resistance of cotton.

 

　　 3. Use 100 kg of cake fertilizer per acre and 40 to 50 kg of biological fertilizer to make the base fertilizer. In the case of base fertilizer, organic fertilizers such as cake fertilizer, bacterial fertilizer and two-thirds of compound fertilizer are turned into the ground. One-third of the compound fertilizer is applied to the surface with the sputum, which is beneficial to the utilization of cotton seedling nutrients, and at the same time in cotton. Spraying 800 times of new high-fat film at the seedling stage can prevent the infection of pathogens, improve the ability to resist natural disasters, and protect the growth of seedlings.

 

　　 4. Stable Hannah fertilizer, fertilizer can be applied to a small bud fertilizer, generally 8 to 10 kilograms per acre to achieve stable long object and Growing Stage cotton stimulating Kao 3 inhibition main shoot flourishing, promote differentiation, Improve plant disease resistance.

 

　　 5. Reapply the flower and bell fertilizer, more than 80% of the nutrients required for cotton are in the flowering and bolling period, so it is necessary to re-fertilize the fertilizer, apply 20 kg of urea per acre , and spray cotton Zhuangting to promote the growth function of the cotton tree in the flowering and boll period. To the transformation of reproductive function, the cotton nutrient delivery catheter becomes thicker, the cotton buds expand the vitality, improve the resistance, protect the bud, keep the bell, protect the peach, accelerate the circulation of the cotton tree, recycle the bolls, improve the fiber quality.

 

　　 6. Apply top cover fertilizer. Cotton has been found to have premature aging before the top of the autumn peach. It should be applied with 8 to 10 kg of urea watering to prevent premature aging.

 

　　 7. Skillfully apply foliar fertilizer. In order to meet the needs of cotton for medium and trace elements, especially for boron, zinc and other elements, to reduce the deficiency, you should choose to apply foliar fertilizer after cotton growth, you can choose cotton special foliar fertilizer plus new high fat film 800 The liquid is sprayed once every 7 days, and even sprayed 3 to 4 times, which can increase the weight of the bell, promote growth, reduce the phenomenon of falling flowers and ringing, and have a significant increase in production.