干旱地区农业研究2016，Vol.34Issue(2)：24-31,8.DOI:10.7606/j.issn.1000-7601.2016.02.04
耕作与施肥模式对渭北旱塬春玉米田蓄水保墒与玉米产量的影响
Effects of different tillage and fertilization combinations on soil water conservation and yield increment in Weibei Highland
摘要
Abstract
The objective of this study was to reveal the effects of different conservative tillage practices during winter fallow on soil moisture conservation and yield improvement of spring corn in Weibei Highland , and to find a proper regime of tillage practice and fertilization level for spring corn in this region .A two-year field experiment was conducted to investigate the effects of three different tillage practices combined with fertilization ,namely ,conventional farmer pat-tern (deep ploughing plus low fertilization level ,S1 ) ,existent highly efficient pattern (no-tillage plus high fertilization level ,S2 ) and innovative highly efficient pattern (sub-soiling plus moderate fertilization level ,S3 ) ,on water utilization , grain yield and economic benefits of spring corn .The results indicated that water storage of S3 and S2 before sowing were higher than that of S1 .Compared with S1 ,the average 0~200 cm soil water storages during the whole growth period , water use efficiencies and grain yields by S3 and S2 were increased by 23 .3 mm and 18 .1 mm ,12 .3% and 10% , 11 .1% and 9 .2% ,respectively .S3 and S2 performed better than S1 in improvement of water storage ,WUE ,grain yield and economic benefits .In conclusion ,S3 treatment is a proper water and fertilizer management pattern for spring corn in Weibei Highland .关键词
春玉米/保护性耕作/施肥水平/土壤水分/产量/渭北旱塬Key words
spring maize/fertilization level/conservation tillage/soil water/yield/Weibei Highland分类
农业科技引用本文复制引用
司政邦,李军,周婷婷..耕作与施肥模式对渭北旱塬春玉米田蓄水保墒与玉米产量的影响[J].干旱地区农业研究,2016,34(2):24-31,8.基金项目
公益性行业（农业）科研专项经费项目（201303104）；国家“863”计划项目 （）
