摘要
本试验设置免耕秸秆还田(NTSR)、旋耕秸秆还田(RTSR)、深翻耕秸秆还田(PTSR)、免耕秸秆不还田(NTNSR)、旋耕秸秆不还田(RTNSR)和深翻耕秸秆不还田(PTNSR)等6种保护性耕作措施。研究不同保护性耕作措施对春玉米产量以及水分利用效率的影响。结果表明,PTSR处理的LAI最大,分别较RTSR、NTSR、PTNSR、RTNSR和NTNSR增加了0.45%、5.97%、4.97%、8.16%和12.26%;PTSR处理的产量最高,分别较RTSR、NTSR、PTNSR、RTNSR和NTNSR增产6.90%、5.23%、14.01%、27.66%和28.80%;PTSR处理的水分利用效率最高,分别较RTSR、NTSR、PTNSR、RTNSR和NTNSR增加了5.50%、2.98%、19.08%、35.25%和34.20%。
The experiment set six kinds of conservation tillage measures including no - tillage straw returning （NTSR）, rotary tillage straw returning （RTSR）, ploughing tillage straw returning （PTSR）, no -tillage no -straw returning （NTNSR）, rotary tillage no - straw returning （RTNSR） and ploughing tillage no -straw returning （PTNSR）. We researched the effect of different conservation till- age measures on corn yield and water use efficiency. The research show that LAI is the largest with the PTSR treatment, which more than RTSR, NTSR, PTNSR, RTNSR and NTNSR treatments 0.45%, 5.97%, 4.97%, 8.16% and 12.26% respectively; yield is the largest with the PTSR treatment, which more than RTSR, NTSR, PTNSR, RTNSR and NTNSR treatments 6.90%, 5.23%, 14.01% ,27.66% and 28.80% respectively; water use efficiency is the largest with the PTSR treatment, which more than RTSR, NTSR, PTNSR, RTNSR and NTNSR treatments 5.50%, 2.98%, 19.08%, 35.25% and 34.20%.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2017年第3期19-23,共5页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
河北省自然科学基金(C2016105056)
唐山市科学技术研究与发展计划项目(15120204B)
河北省渤海粮仓科技示范工程专项
河北省农林科学院科学技术研究与发展项目(A2015070301)
关键词
保护性耕作
春玉米
生物量
产量
水分利用效率
Conservation tillage measures
spring maize
biomass
yield
water use efficiency
