Rainy days have adverse effects on cotton growth and are conducive to the occurrence of cotton pests and diseases. Therefore, it is necessary to strengthen the management of cotton fields, pay close attention to the occurrence and development of cotton pests and diseases, and timely control pests and diseases. Timely drainage: the terrain is low, the cotton field is easy to accumulate water, and the rain should be drained in time to minimize the flooding time of the cotton field, and the cotton field drainage system is cleaned and dredged, and the soil water content is quickly and effectively reduced, and the cotton field waterlogging is eliminated. To rob cotton plants: Because of the cotton fields that have fallen due to the storm, in order to alleviate the losses, the cotton plants should be lifted in time. It is necessary to grab the cotton plant when the cotton field soil is not dry and dry, and promote the cotton plant to resume growth. Righting method: You can gently lift the cotton plant from the wind up, and protect the roots in the stem. Avoid excessive force or over-heading to prevent artificial mechanical damage. Replenishing fertilizer: At present, the cotton field is in the flowering and bolling period, which is at the peak of fertilizer demand. A large amount of rainfall causes the soil nutrients to drain seriously, so it is necessary to apply fertilizer. After the field is suitable, fertilize in time, generally 10 to 15 kg of urea and 7 to 10 kg of potassium chloride. It can increase the stamina, prevent premature aging, promote the increase of weight and increase the weight of the bell, and reduce the loss of the bud. Timely prevention and control of pests and diseases: Strengthening prevention and control with blind cockroaches, third and fourth generation cotton bollworms, etc., can be controlled by fluramide, thiocarbamate, methomyl, malathion and other agents. In the application, it is recommended to use drugs with different insecticidal mechanisms and different modes of action for mixing, such as contact agents and systemic agents, which can effectively improve the control effect. Prevention of blindness: The time when blind elephants are active is less time at night and less sunshine. In actual production, the time of administration should generally be after 4 pm. At this time, most of the blind mites are distributed on the surface of the young part of the cotton plant, and the control effect is good, and the photolysis of the medicament is also reduced within a certain period of time. In the contiguous cotton field, it is necessary to unify the time of drug use and act in unison. When spraying, first hit the periphery, it is best to apply the medicine together with the weeds on the cotton field and the weeds on the road to concentrate and annihilate to prevent migration. For a single cotton plant, spray it through the inside and outside. NINGBO VOICE BIOCHEMIC CO. LTD , https://www.medicine-voice.com
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Rainy multi-cotton summer field should be grasped