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大田试验研究结果表明:单施化肥的水稻植株干物质积累和养分吸收主要集中于生长中前期。而有机无机肥配施,特别是化肥与厩肥配合施用有利于水稻植株在中后期,尤其是灌浆期对养分吸收和干物质的积累,其中以植株对磷的吸收比例在各肥料结构间差异最大(p<0.01)。有机无机肥配施还可促进水稻植株养分向籽粒中转移和分配。从而明显增加了水稻结实率和千粒重,进而大大提高了水稻籽粒产量(p<0.05或p<0.01)。
The results of field trials showed that the dry matter accumulation and nutrient uptake of rice plants with chemical fertilizer alone were mainly concentrated in the early growth stage. The combination of organic and inorganic fertilizers, especially with chemical fertilizers and manure, is conducive to the absorption of nutrients and accumulation of dry matter in the late rice, especially in the filling stage, of which the phosphorus absorption ratio of plants in the fertilizer structure most different (p <0.01). The combination of organic and inorganic fertilizers can also promote the transfer and distribution of rice plant nutrients to grain. Thus significantly increasing the seed setting rate and 1000-grain weight, thereby greatly increasing the grain yield of rice (p <0.05 or p <0.01).