How is the control effect of cabbage disease good?

How to control the cabbage disease is good:

1. Sowing on the ground, rational rotation, timely removal of the residues of the former crops, ploughing the sun as soon as possible, cleaning the pastoral, deep-cultivating the fields, watering and protecting the soil, applying enough base fertilizer (acre applied high-quality decomposed organic fertilizer 4000-5000 kg, phosphoric acid II) Ammonium 25 kg, potassium chloride 20 kg); seeding with new high-fat membrane after seed dressing, sowing should be done in the right amount, and use the gums to gently rub the topsoil, so that the seeds are planted into the soil.

2, seedling management, emergence of seedlings, should be in the cotyledon, Lacrosse, 3 - 4 leaf stage of the seedlings, seedlings, seedlings should be timely watering, topdressing (pay attention to nitrogen fertilizer content), to prevent shaking of the roots of the seedlings And wilting. And timely spraying of the new high-lipid film 800 times liquid can effectively prevent the infection of pathogens, improve the ability to resist natural disasters, increase the intensity of photosynthesis, and make the seedlings grow healthily.

3, transplanting and planting, before transplanting Datian should be watered, apply enough base fertilizer (1000 kg per mu of decomposed pig cow dung, pay attention to balance nitrogen, phosphorus, potassium in the soil), timely transplant, reasonable close planting, after planting Immediately watering, and spraying the new high-fat film 800 times liquid in time (effectively preventing the water from evaporating on the ground, not transpiration of the seedlings, shortening the slow seedling period, allowing the seedlings to quickly adapt to the new environment), then pouring water once a day in the morning and evening, continuously 3 to 4 days.

4, field management, after the end of the slow seedling period, should be timely tillage, watering and topdressing (15-20 kg of compound fertilizer applied per mu, 15-20 kg of urea in the rosette period, 10-15 kg of superphosphate) And with the application of new high-fat film 800 times liquid to improve the utilization rate of fertilizer; spraying the strong stems in the rosette period of Chinese cabbage can make the stems of the plants strong, the leaves are thick, the leaves are fresh, the plants are flourishing, and the natural taste is strong. At the same time, it can improve the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons.