How to fertilize cotton to high yield?

With the cotton planting methods and technological advances, fertilization methods also need to make the appropriate changes, how to fertilize cotton to high yield it? Here to tell you about cotton fertilization skills.

How to fertilize cotton to high yield

In recent years, the introduction of a large number of insect-resistant cotton around the effective control of the harm of bollworm, ray ban, the number of fallen buds greatly reduced, reproductive growth strong, bell earlier and more, to be fat peak faster and fierce. If the traditional methods of fertilization, often can not meet their needs, resulting in poor nutrition and premature aging. In addition, insect-resistant cotton because of the introduction of insect-resistant genes, its resistance to decline, prone to leaves, stem blight and other diseases.

Increasing the amount of nitrogen and nitrogen fertilizer reduction

Potassium fertilizer has the function of cotton stress resistance and disease prevention, therefore, need to increase the application of potash fertilizer. If blindly adding nitrogen and phosphate fertilizer, ignoring the application of organic fertilizer and potassium fertilizer will not only increase the cost of fertilization, but also lead to premature or late cotton, affecting the yield and quality greatly.

Increase of organic fertilizer, potash, reduce nitrogen, phosphate fertilizer operations are as follows: Mushi about 3000 kilograms of organic fertilizer, potassium 10-15 kilograms. From the traditional acres of urea 25-30 kg of urea, 50 kg of superphosphate, reduced to 12 kg urea mu, superphosphate 25 kg. The above fertilizers, combined with deep soil facilities 15 cm below.

What are the principles of cotton fertilization

Flower boll fertilizer once concentrated to two facilities

Flower boll cycle is the most vigorous growth and development of cotton throughout the life, the need for the most time, need to re-Huaping fertilizer. Generally need acres of urea 25-30 kg, potash 10 kg. Bunch cotton boll fast and concentrated for the characteristics of cotton boll fertilizer can be 2/3 initial flowering, the remaining 1/3 about 15 days and then chase, so that can not only meet the cotton flowering bell Needs, but also can effectively prevent the growth and decline of cotton plants.

Cover top soil top dressing changed to foliage

Late cotton growth, the absorption capacity of the root decline, if insufficient nutrients, can easily lead to premature aging, the need to top-cover fertilizer. Top dressing foliar fertilizer has the advantages of simple, quick, good effect, fertilizer and other advantages, can save 2/3 than the soil topdressing fertilizer.

The above is some introduction of cotton fertilization techniques, planting cotton friends can refer to the above methods, combined with the actual planting situation, the rational fertilization.