Preliminary study on effect of organo-inorganic compound fertilizers

Fowl dung both fermented and unfermented is as organic fertilizer. With the ratios of organic N and total N at 0, 30%, 40%, 60% and 100%, a 2year trials for paddy show that firstly the yield rises with increase of organic N at less than 40%, and lowers at more than 60% but has a residual fertilizer effect; then the relation between nitrogen fertilizer efficiency and organic N content in the fertilizer is positively correlative, nitrogen fertilizer efficiency is 53.4% at 100% of organic N; finally the translocation of N nutrient to crop seeds is prompted with an increasing organic N standard.