In July after the middle ten days of a month, cotton already entered Hua Ling period to run level, also be the crucial period that forms pily crop. This year, early days although air temperature slants cool, cotton grows slow, but, later period accumulates lukewarm complementary principle in, it is normal that pily the way corp is growing tends. Good now cotton field sees the cotton boll of two centimeter above, for this, want to ensure crop in one's hand, the following nots allow to ignore:
One, fertilizer of water of Hua Ling period manages
Heavy Shi Hualing is fat, fill the topdressing that use a shell. Fertilizer of Hua Ling period puts in 60% what occupy gross. In July after the middle ten days of a month, fertilizer is given priority to with NPK, one water one fertilizer. Urea 6, 8 kilograms / mu. Phosphorous potash fertilizer 4, 5 kilograms / mu. In August after the middle ten days of a month, little nitrogenous fertilizer, add phosphorous Potassium. The last ten-day of a month will reach time stopping fertilizer in August at the beginning of September, quantity of water of water of drop of the middle ten days of a month will decrease in September, accomplish raise a root with water, protect a leaf with the root,
2, slant flourishing cotton field
Use for the first time after cotton makes a top 3 days shrink section amine seals a top, shrink section amine dosage masters in 10 grams / mu, shrink the 2nd times after section amine seals a top to be in 10 days, undertake, shrink section amine dosage is in 5 grams / or so mus. Will be opposite again after the middle ten days of a month in August slant flourishing cotton makes group of tops, hit Laoxie, make cotton field ventilated and pervious to light, raise Cheng Ling to lead.
3, slant wet cotton field
Humidity of cotton field of the later period in August slants big, easy cause cotton boll mildew and rot, can lengthen cycle of fill of cotton field annulus appropriately consequently, accomplish cotton field effective humidity, not suffer from drought.
4, cleared fireweed
Now machine collect cotton field to gain ground, want to improve pily quality, be about to keep clear of cotton field fireweed. Can reduce amount of fireweed of cotton field of the coming year already, also be one of move that raise pily character and yield.
