The studies were conducted on the effects of double-promoting regulator (DPR) on rice key enzymes activities of nitrogen metabolism, rice protein contents of grain and brown rice and photosynthesis characters of rice in five soils.

• 本研究采用盆栽试验探讨了双促调节剂(DPR)对湖南省具有典型代表的五种土壤上的水稻氮代谢关键酶活性、籽粒和糙米蛋白质含量以及光合特性等的影响。 试验结果如下：