1, strictly controlled conditions apply to DPC fertilizer conditions are good growth vigor of cotton, dry weather can not guarantee the irrigation of cotton fields should not be used, subject to hazards and natural disasters in cotton fields, it can not be used when growth was inhibited.
2, control the amount of medication should not be greedy, should not be used in large quantities, especially in the seedling, bud and initial flowering period to strictly control the dose. If the plant grows slowly, the fruit branches are shrunk together, and the leaves do not open, causing a large number of buds to fall off, and the yield reduction is quite serious. In this case, gibberellin (920) can be sprayed in time, which has a significant effect on relieving this symptom and restoring growth.
3, pay attention to the use of water and fertilizer combined with the use of ketamine to pay attention to fertilizer management, with appropriate, must not be due to deepening of the leaves after application, and neglect fertilization and watering.
4. Pay attention to the weather changes when spraying. Generally, it is better to use before 10:00 am or 5 pm on sunny days. It can be re-sprayed once in 8 hours after spraying.
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