How to apply cotton foliar fertilizer

After the growth and development of cotton plants, generally after mid-August, the activity of roots is declining and the absorption capacity is reduced. For cotton fields that need to be applied without capping fertilizer, the fertilizer can be dissolved in water and sprayed on cotton leaves at a certain concentration. To make up for the lack of nutrients in the roots. The type and suitable concentration of fertilizer for foliar application are generally 1% to 2% of urea, 2% to 3% of superphosphate and 0.3% to 0.5% of potassium dihydrogen phosphate. Spraying time is generally in the middle and late August to early September. According to the growth of the cotton plant, spray once every 7 days, even 2 to 3 times, each time 667 meters 2 spray solution 50 ~ 75 thousand, sprayed on the back of the middle and upper leaves on a sunny afternoon is better.
Huaxian Agricultural Technology Promotion Center Lu Shuguang

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