摘要
针对土壤中磷素利用率低的问题,进行了2a的磷素活化试验。结果显示:在水稻本田中施用二铵150kg/hm2(常规用量),配施7.5kg/hm2土壤磷素活化剂,可增稻谷13%左右。分析了土壤磷素活化剂的应用条件,指出了土壤磷素活化剂只有在配施一定量二铵的情况下才能发挥活化土壤磷的作用。
Fa cing phosphorus utilization ratio is low in soil;took a phosphorus activation e xperiment for two years.The result shows ,applying diamine150kg/hm 2 (routine dose)combining with soil phosphorus activator7.5kg/hm 2 to rice field can increase yield around13%.Analyze the using condition o f soil phosphorus activator then point out the activator doesn't act until com bining with certain diamine.
出处
《垦殖与稻作》
2003年第2期37-38,共2页
Reclaiming and Rice Cultivation
关键词
水稻
土壤磷素活化剂
经济效益
产量
磷肥
rice
soil phosphorus activator
increa sing yield
economic benefit
