Fine management of cotton in August
The main results are as follows: 1. For the cotton fields with obvious cotton senescence, peach fertilizer should be applied in time to prevent the premature senescence of cotton and promote more bolls; for the cotton fields with more bolls in the early stage, in order to meet the nutrient needs of a large number of bolls and increase the boll weight, top fertilizer should be applied; for the dry part of the plot, foliar spraying fertilizer combined with new high fat film can be used together to improve the utilization of effective components of fertilizer.
February and August is the peak boll setting period of cotton, when the temperature is still very high, the light is also strong, the water consumption is large, but the cotton plant will not be affected by drought. It is necessary to water flexibly according to the specific conditions of cotton plant, and pay attention to avoid stagnant water in cotton field and cotton plant boll rot. At the same time, spraying new high fat film can protect cotton seedlings from transpiration, sun protection and drought resistance.
3. Spraying Huawang No. 3 cotton topping agent on the top of cotton, instead of artificial topping, can restrain cotton growth, transform growth nutrition into reproductive nutrition, increase cottonpeach nutrition delivery conduit, protect boll and protect peach, speed up circulation and bud appearance, and improve fiber quality.
The common cotton pests in April and August are cotton bollworm, Spodoptera litura, red spider and so on, which should be controlled by spraying targeted insecticides in time, especially on the back of the leaves.
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