水稻旱育稀植钾肥施用技术研究

摘要

通过对旱育稀植钾肥施用量、钾肥基、追比例和施钾时间的试验研究,初步揭示了钾肥适宜用量为150 kg/hm2,钾肥基、追肥比例分别是30%、70%,施钾最佳期在孕穗期.%Through the study on application amount of potassium fertilizer,the ratio of basal and topdressing,and the time of application of sparsely planting rice from dry nursery,primarily showed that the appropriate dosage of potash fertilizer was 150 kg/hm2,the ratio of basal and topdressing were 30%、70%respectively,the booting stage was the best period of application of potash fertilizer.