摘要
本研究通过对有单排单灌的10个甘蔗旱地进行4种不同的施肥条件处理,分析不同施肥条件下甘蔗生长期内降雨产生径流种氮磷的含量。结果表明:(1)径流总氮和总磷在CK条件下一直处于较低水平;从长期趋势来看,径流中TN浓度大小依次为:CT>BS>NSPCBS;径流中总磷浓度大小依次为:CT>NSPC-BS>BS。(2)径流中总氮流失负荷依次为:NSPC-BS<CT<BS,径流中总磷流失负荷依次为:NSPC-BS≈BS<CT。
In this study,four different fertilization treatments were conducted in 10 dry sugarcane plots with single row and single irrigation to detect the nitrogen and phosphorus content of runoffwater generated by natural rainfall during the growth period of sugarcane under different fertilization schemes.The results showed that:(1)Total nitrogen and total phosphorus in CK runoffwere always at a low level;From the long-term trend,the concentration of TN in runoffCT>BS>NSPC-BS;Total phosphorus concentration in runoffwater CT>NSPC-BS>BS.(2)Total nitrogen loss load in runoff:NSPC-BS<CT<BS;total phosphorus loss load in runoff:NSPC-BS≈BS<CT.
作者
吴烨
金成舟
金志勇
洪庆红
Wu Ye;Jin Chengzhou;Jin Zhiyong;Hong Qinghong(Jinhua Rural Talents Science and Education Center,Zhejiang,321017;Yiwu Agricultural Technology Extension Service Center,Zhejiang,321017;Jinhua Vocational and Technical College,Zhejiang,321017)
出处
《当代化工研究》
CAS
2023年第12期33-35,共3页
Modern Chemical Research
关键词
甘蔗
径流
氮
磷
有机肥
sugar cane
runoff
nitrogen
phosphorus
organic fertilizer
