How to prevent and cure corruption by planting lotus root?

How to prevent and cure corruption by planting lotus root? Please introduce the lotus root rot disease, which is called rotten stem by the masses, which mainly harms the underground stem, and the leaves and stalks can also be killed. The leaves are killed to form green and withered patches along the leaf edge, and then the whole leaf turns brown, and the petiole shrinks and dies from top to bottom. When it is serious, the whole field is withered and yellow, resulting in no harvest. The pathogen is transmitted through diseased lotus root species and soil, and can also be transmitted to the surrounding lotus root field through irrigation water. The disease is serious when the temperature is 23-30 degrees and continuous rainy weather. The prevention and control methods of lotus root rot disease can be referred to as follows: 1. The poisoned soil is mixed with 40 kg of fine soil with 21% round rot per mu, and mixed evenly and stuffy for half an hour. The old diseased fields are prevented 2-3 times, once every 7 days; for non-diseased fields, 10 kg of fine soil mixed with wheel rot is scattered around the lotus root field to prevent the inflow of water from infected lotus root fields. 2. Topdressing long lotus root fertilizer combined with disease prevention, using 45% ternary compound fertilizer 40 kg, urea 10 kg per mu, adding 75% chlorothalonil 1 kg or 70% methyl topiramate 1 kg into the field, not only promote long lotus root, but also prevent diseases. 3. Pay attention to the dense leaves of lotus root in the field, whether it is disease prevention and topdressing, it should be light to move down the field, in order to prevent mining injury to the underground stem (lotus root). 10 cm shallow water layer should be maintained in the field after pesticide application and fertilization. Click to get more lotus root planting techniques click to get more vegetable planting techniques