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(三)根据肥料的性质施肥 有机肥料含有多种营养盐类及丰富的有机质,肥效高而持久。施用前要在缸或池中经过发酵腐熟后再施用。粪肥腐熟后可在生长季节全池泼洒。也可用人粪尿、牛粪、猪粪和绿肥等制成混
(C) according to the nature of fertilizer Fertilizer organic fertilizer contains a variety of nutrients and rich in organic matter, high fertilizer and lasting. Before application, it should be fermented and matured in the cylinder or the pool before being applied. Dump manure can be Quanchiposa in the growing season. Also available human waste, cow dung, pig manure and green manure made of mixed