The effects of the spraying double-promoting regulator (DPR) on nitrogen metabolism characters and grainprotein yield in different soils are studied.

• 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.