Since the beginning of July, Beijing big range of continuous rainfall, cumulative rainfall levels far higher than the same period in previous years, have a significant impact on agricultural production, particularly continuous rainfall nutrient status of vegetable, vegetable necessary preventive measures to Respond to possible heavy rainfall.
The soil is saturated with water and there is more water on the surface.
At present, the water content of open soil has reached or near saturation, and the roots of crops are under anaerobic conditions for a long time, which is easy to cause root toxicity. There is more water on the surface, and floods are more likely to occur if there is heavy rain. The surface water has a certain influence on vegetables. Many vegetables such as cabbage, lettuce and other vegetables are smashed by rain and yellow leaves appear.
Serious soil nutrient loss
Most of the farmland has been washed away by heavy precipitation, causing farmland damage and soil nutrient loss. Especially the available nutrients in the soil surface, such as available nitrogen, available phosphorus, and available potassium nutrient loss are highly prone to occur, resulting in temporary shortage of nutrients in vegetable fields. , affecting the growth of vegetables.
Dig drains and actively respond to rainfall
Investigate the three ditch inside and outside the vegetable field, do a good job of dredging and dredging the three ditch in the field, and timely eliminate water in the field to reduce soil moisture.
Timely supplementation of quick-acting fertilizer
The risk of waterlogging is likely to cause premature aging of the crop. Therefore, it is necessary to focus on topdressing. Apply appropriate amount of urea, potassium dihydrogen phosphate and other medium and micro fertilizers to ensure nutrient supply in the late stage of crops, slow down premature aging, enhance leaf photosynthesis function, and increase production and maintain production.
Cultivate weeding and restore vitality
Temporary ploughing after the soil surface is slightly dry can not only eliminate a large number of germinated weeds, but also eliminate soil hidden dangers, improve soil permeability, increase ground temperature, activate nutrients, and promote crop root growth, which is higher for crops with higher plants. Go to the roots of the soil and prevent the lodging.
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