It is hot and rainy in summer, and it is prone to continuous rainy weather. The long-term continuous rainy weather will cause many adverse reactions such as sickness, withering, and cracking of fruits. Therefore, crops should be managed in a timely manner after the rain:
　　 1. Eliminate stagnant water. According to local conditions, the field water is removed, and the lodging crops are fixed by the righting soil while draining, and the surface sludge is washed away to facilitate photosynthesis and promote plant growth.
　　 2. Cultivate loose soil. Various methods are adopted to timely cultivate the loose soil, enhance soil permeability, improve the root growth environment, and promote root growth.
　　 3. Pay attention to the prevention of pests and diseases. Because of the long duration of rainy days, high humidity and insufficient light, it is conducive to the growth of pests and diseases. Therefore, timely prevention and control of pests and diseases should be carried out, and pesticides should be sprayed in time.
　　 4. Apply fertilizer in time after rain, apply appropriate amount of quick-acting nitrogen fertilizer to flooded crops to supplement nutrient loss caused by rainwater leaching, ensure fertilizer supply, and promote plant growth as soon as possible. Spring and Summer Maize (2321, -3.00, -0.13%) depending on the growth and early 10 topdressing fertilizer application per acre to 15 kg urea; cotton per acre topdressing urea 10 kg, potassium sulphate 2.5 to 3.5 kg; soybean (4458, -2.00, -0.04%) 5 to 10 kg of urea per acre . Cotton field and soybean combined with pest control, using 150 to 200 grams of potassium dihydrogen phosphate per acre to spray 30 liters of water on the leaf surface.
Finally, it should be noted that the application of nitrogen and potassium fertilizer should cover the soil to avoid nitrogen loss during the hot and rainy season.
Source: Farmers Daily
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