摘要
以19香水稻为研究对象,通过控制N(尿素)、P(过磷酸钙)和K(氯化钾)的施入量,研究降低化肥施用量对水稻产量及性状的影响。结果表明:当化肥施用量过高时,对水稻产量和性状的影响呈负增长。N、P和K施入量分别为160 kg/hm2、75 kg/hm2、75 kg/hm2时,水稻产量最高,植株性状最佳。
The effects of reducing fertilizer application rate on rice yield and characters were studied by controlling N(urea),P(superphosphate)and K(potassium chloride)application rates in 19 Xiang rice.The results showed that when the fertilizer application rate was too high,the effect on rice yield and character was negative.When N,P and K were applied at 160 kg/hm^(2),75 kg/hm^(2)and 75 kg/hm^(2),rice yield and plant character were the best.
作者
郭碧芝
傅树豪
陈妍
Guo Bizhi;Fu Shuhao;Chen Yan(Puning Agriculture and Rural Comprehensive Service Center,Puning 515300,Guangdong,China)
出处
《农业技术与装备》
2023年第8期178-179,182,共3页
Agricultural Technology & Equipment
关键词
水稻
化肥
产量
干物质积累
rice
chemical fertilizer
yield
dry matter accumulation
