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1.抽槽改土 抽通槽,槽深、宽各80～100厘米。抽槽时,将上层熟土和底层生土分开放置。槽底先垫入一层枯枝落叶或秸秆,然后将上层熟土回填;再分1～2层施入底肥,667平方米用厩肥6000～8000千
1 pumping tank to change the drainage pumping groove, groove depth, width of 80 to 100 cm. When pumping tank, the upper layer of mature soil and the bottom of the raw earth separately placed. The bottom of the tank first pad into a layer of litter or straw, and then the upper layer of mature soil backfill; subdivided into 1 to 2 layers of base fertilizer, 667 square meters of manure 6000 to 8000