Standard high-yield management

First, re-apply flower bell fertilizer, make top-dressing fertilizer, and do a good job of foliar spraying later. Reapply two flower bell fertilizers, for the first time in the early flowering period (July 5th to 10th), apply 15 kg of ternary compound fertilizer with potassium content above 15% and 20 kg of urea per hectare. 35cm on the side of the ditch deep; the second time before and after July 20, 45% of compound fertilizer per acre 15kg, 25kg of urea, 35cm on the other side of the first application of flower bell fertilizer from the cotton plant Ditch deep in the facilities. The top fertilizer was applied at the end of July and 12.5 kg of urea was applied per acre. The side of the first application of the flower and boll fertilizer was applied at a depth of 40 cm from the cotton plant. After entering the month of August, due to the weakening of the absorption capacity of the roots of the cotton plants, the method of foliar fertilization should be adopted to supplement the plants, and 1% of urea and 0.2% of potassium dihydrogen phosphate can be used for foliar spray, and 1% of the three can also be used. Yuan compound fertilizer liquid foliar spray, spray once every 7 days, continuous spray 3 to 5 times. Second, timely irrigation and drainage. During the flowering and boll season, when it is dry, it should be poured into high-yield water and should not be run on horses. In case of continuous dry weather, re-watering should be done every 7 days or so, so as to meet the large amount of moisture required by the standard cotton. In the event of encounters, the water in the cotton field should be quickly eliminated to maintain the proper moisture content in the soil. During the initial stage of drought, we must insist on watering when it is in drought, but the amount of water should not be too large, so as to avoid late-maturing plants, generally only half a gutter is needed. Third, moderate pruning. As long as the water and fertilizer conditions are adequate, the vegetative shoots, pods and axillary buds of the standard cotton may become bells, and it is an important part of the output, and generally it is not necessary to use stalks to fight. In the super-high-yield plots, in order to create the ideal plant type and population structure, the weak vegetative shoots at the bottom of the plants can be planted after budding, and 2 to 3 strong vegetative shoots per plant are retained until each vegetative shoot grows 3 ~ 5 secondary fruit branches (around July 15), to break the heart of nutrition. When the main stem grows 18 to 20 fruit twigs (around July 25), the core of the main stem is broken. Fourth, light control and diligence. At the beginning of flowering, use 1.5 ~ 2g of dildodomamine to spray 15kg of foliar spray per acre to prevent the plants from growing too fast. After the main stem is topping, use 2 ~ 3g of water for 20kg per acre. To prevent the occurrence of ineffective buds and axillary buds. Fifth, disease prevention and pest control. When there is a sporadic disease strain of Verticillium wilt in the field, it should be immediately taken out of the field and deeply buried, and the diseased points should be sprayed with chemical liquid. The fungicides and foliar fertilizer should be sprayed immediately on the cotton plants around the disease center to control the spread of diseases and increase the disease resistance of cotton plants. For the blind stink bugs, red spiders and fleas, we must use pesticides on the roads to control their damage in a timely and effective manner; for the third and fourth generations of cotton bollworms, the resistance to the standard cotton is reduced at a later stage. When there are 100 larvae with more than 6 larvae, Should be controlled 1 to 2 times.

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