Impacts of different soil fertility improvement practices with film mulched ridge-furrow til-lage on soil nutrient content, maize yield, and water use efficiency in Northwest China
التفاصيل البيبلوغرافية
العنوان:
Impacts of different soil fertility improvement practices with film mulched ridge-furrow til-lage on soil nutrient content, maize yield, and water use efficiency in Northwest China
Improvement of soil quality is one of the most important ways to enhance fertility for efficient dryland crop production. However, the effects of different fertilization measurements with film mulched ridge-furrow tillage on soil fertility, crop yield, and water use efficiency (WUE) of maize largely remain unknown. A three-year field experiment was conducted at the Zhuanglang Experimental Station, Gansu Academy of Agricultural Sciences, located in the semiarid region of the Loess Plateau, Northwest China during 2014-2016. Maize breed Funong No.1 was used during the study. There were four treatments, including: 1) conventional planting (CP, served as control), 2) film mulched ridge-furrow with straw incorporation (FS), 3) film mulched ridge-furrow with optimizing fertilization (FF), and 4) film mulched ridge-furrow with controlled fertilization (FC). Seasonal and yearly changes of soil water content, topsoil organic matter (SOM), soil available nitrogen (AN), phosphorus (AP) and potassium (AK) concentration and crop yield were measured. Nitrogen and phosphorus fertilizer partial factor productivity (PFP土壤培肥是维持旱地农业土壤肥力水平、提高生产力的最主要的措施之一,但不同土壤培肥措施对全膜双垄沟播土壤肥力及玉米肥水调控的作用机制及其增产效应尚缺乏系统研究认知.2014—2016年在甘肃省农业科学院庄浪试验站,以‘富农1号’玉米为指示作物,设全膜双垄+秸秆还田(FS)、全膜双垄+优化施肥(FF)和全膜双垄+控制性施肥(FC)3种土壤培肥组合模式,以常规种植(CP)为对照,测定年季0～200 cm土层土壤含水量、耕层土壤有机质(SOM)及氮磷钾速效养分含量(AN、AP、AK)和作物产量,计算土壤贮水量(W
