Sweet potato seedlings need to be prepared in advance

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First, the implementation of a good nursery area: First, according to the actual planting of spring and summer potato area to determine the amount of seedlings and seedbed area. The amount of seed per acre is different due to the time of seedling raising, the method of seedling raising, and the germination of the variety. In general, the amount of seed used per mu is about 60 kg for spring potatoes, and 30 kg for summer potatoes. To cover nursery seedlings with plastic film, for example, 1 mu of spring potato reserved nursery land is about 10 meters, summer potato is halved, and fire pod nursery is halved; 1 mu of nursery nursery is for 10 mu of summer potato seedlings.

Second, choose a good nursery: seedbed should choose leeward sunny, human and animal is not easy to damage, high ground, drainage is better, and water management convenient place. Seedbed soil does not require salt and alkali, soil fertility, no more than two years of sweet potatoes. Because the quality of bed soil affects the growth of potato seedlings, old soil is susceptible to diseases. Fixed bed should be changed in advance soil or soil disinfection.

Third, other material preparation: fertilizer, brewing materials, fuel, plastic film, grasshoppers, etc., but also have to prepare in advance.

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