“安粳314”是黔中籼粳混栽区的粳稻换代品种。1992年被评定为农业部优质米,首届中国农业博览会铜质奖。通过对“安粳314”不同氮、磷、钾追肥量对其经济性状和产量影响的研究,认为该品种在一定追氮水平条件下,重施磷、钾肥有利于优化群体的 LAI,提高经济系数,改善穗粒结构,从而达到增产目的;并明确了氮、磷、钾对“安粳314”产量的相对重要性。 “Anjing 314” is a mid-Indica-Japonica hybrid rice replanting varieties. 1992 was rated as the Ministry of Agriculture high-quality rice, the first China Agricultural Expo Bronze Award. Through the study on the effects of topdressing amounts of different nitrogen, phosphorus and potassium on its economic traits and yield in “Anjing 314”, it was concluded that re-applying phosphorus and potassium fertilizers would optimize the LAI of the population and increase the economic Coefficient to improve grain structure, so as to achieve the purpose of increasing yield. The relative importance of nitrogen, phosphorus and potassium on the yield of “Anjing 314” was clarified.