Bed soil should be made of decomposed organic manure, compost, etc., peat soil and slag, and some superphosphate and urea should be added.
General sowing bed soil (calculated by volume): garden soil, Daejeon soil 40%, decomposed manure or peat soil 60%; or garden soil, Daejeon soil 40%, decomposed horse manure or peat 40%, fine sand Or fine slag accounts for 20%.
Sub-seedling bed soil generally uses 40% of DaTian or garden soil, 50% of decomposed organic fertilizer or peat soil, and 10% of fine sand or fine slag. And according to per square meter seedbed (10 cm thick) plus 25 grams of urea, superphosphate 200-250 grams.
Field soil must be taken from a vegetable plot that has not been planted with vegetables of the same family within two years to prevent bed soil from spreading pests and diseases. It is best to take soil from fields, beans, onions and garlic. Peat soil is rich in organic matter and various elements, and it is the most ideal substrate for nursery. Mixed manure must be fully decomposed. Because the fresh manure is mixed into the bed soil, it will not only bring about pathogenic eggs, but also emit a lot of toxic gases during the fermentation process, especially ammonia, which will cause damage to the seedlings.
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