【摘要】 为了实现水稻高产、优质、高效,采用盆栽试验,研究了水稻双促调节剂(DPR)在不同土壤上喷施对水稻氮素代谢特性及其籽粒蛋白质产量的影响.结果表明水稻齐穗后喷施DPR能明显改善水稻功能叶和茎鞘氮素代谢的能力,提高其籽粒和糙米中蛋白氮含量及籽粒的蛋白质产量.DPR处理与对照相比,早、晚稻籽粒蛋白质产量分别提高了12.77%~16.56%和8.39%~13.18%.更多还原

【Abstract】 The effects of the spraying double-promoting regulator (DPR) on nitrogen metabolism characters and grainprotein yield in different soils are studied.The results show that DPR can obviously improve ability of nitrogenmetabolism in functional leaves and steam-sheaths of rice in stage of reproductive growth, and enhance the contents of protein N in grain and brown of rice.Compared with treatment CK,the grain protein yield of treatment DPR of early rice and late rice increase by 12.77%~16.56% and 8.39%~13.18% respectively.更多还原