期刊论文

Effects of different intercropping on nitrogen and phosphorus runoff loss from dry land and crop production efficiency

中文

湖南农业大学学报(自然科学版)

1007-1032

2018

44

2

117-123

10.13331/j.cnki.jhau.2018.02.001

2016NK2112:湖南省重点研发计划项目 2015NK3133:湖南省重点研发计划项目 14K048:湖南省高等学校创新平台开放基金

本校为第一机构

2015、2016年,采用田间小区试验,研究自然降雨条件下玉米单作、玉米间作芝麻、玉米间作花生、玉米间作大豆、玉米套种红薯对旱地地表氮磷养分流失的影响,并进行经济效益分析。结果表明:旱地玉米不同间(套)作模式对地表氮磷流失的拦截效应明显,氮磷流失以颗粒态为主,分别达77.21%~81.68%和63.68%~69.10%;与玉米单作相比,玉米间作大豆和玉米套种红薯对旱地氮磷径流流失的阻控效应更加明显,玉米间作大豆的径流总氮、颗粒态氮年均流失量分别减少了40.67%和39.15%,总磷和颗粒态磷年均流失量分别减少了38.94%和39.84%;玉米套作红薯模式的总氮和颗粒态氮年均流失量分别减少了38.07%和38.27%,总磷与颗粒...

In order to study the effects of nitrogen and phosphorus runoff loss from dry land and crop economic benefit on different intercropping modes of maize monoculture, maize intercropping sesame, maize intercropping peanut, maize intercropping soybean and maize interplanting sweet potato. The experiment was carried out under the condition of natural rainfall in 2015 and 2016. The results showed that the maize and other crops intercropping had good interception effect on runoff loss from dry land, also particulate nitrogen and phosphorus were the ma...