中国生态农业学报（中英文）2024，Vol.32Issue(5)：755-765,11.DOI:10.12357/cjea.20230768
黄土高原春玉米氮肥生产力对不同耕作措施的响应:Meta分析
Response of nitrogen fertilizer productivity of spring maize on the Loess Plateau to different tillage measures:a meta-analysis
摘要
Abstract
This study aimed to clarify the effects of different tillage measures,including mulch planting,straw returning,subsoiling,and no-tillage,on the partial productivity of nitrogen fertilizer(PFPN)of spring maize in the Loess Plateau and explore the factors driving the change in PFPN under different tillage measures.Meta-analysis,regression analysis,and random forest analysis were per-formed.Compared with traditional tillage measures(such as,bare land planting,straw-free returning,and plowing),mulching,straw returning,and subsoiling tillage increased PFPN by 38.8％,10.3％,and 8.4％,respectively,whereas no-tillage had no significant ef-fect on spring maize PFPN.The random forest model showed that the average annual rainfall and growing season rainfall were two re-latively important factors affecting the PFPN of spring maize under mulching and straw returning,and that the average annual rainfall and test duration were important factors under subsoiling.Subgrouping and regression analysis showed that in the areas where the av-erage annual rainfall was ≤400 mm,growing season rainfall was ≤300 mm or average annual temperature was＜7 ℃,mulching in-creased the spring maize PFPN by 77.7％-99.5％,and PFPN was negatively correlated with average annual rainfall,growing season rainfall,and average annual temperature.In areas where the average annual rainfall was 400-500 mm or the growing season rainfall was 300-400 mm,straw return could increase PFPN by 10.2％-16.3％.When the average annual rainfall was 400-500 mm and the duration of the subsoiling experiment was less than 3 years,the PFPN was increased by 14.1％to 14.6％.Therefore,according to the regional and climatic characteristics,adopting appropriate tillage measures can further improve the PFPN of spring maize and pro-mote the realization of the goal of sustainable crop production in arid areas.This study provides a reference for improving the PFPN of spring maize in the Loess Plateau and formulating agricultural production strategies for regional sustainable development.关键词
氮肥生产力/耕作措施/黄土高原/春玉米/Meta分析Key words
Nitrogen fertilizer productivity/Tillage measures/The Loess Plateau/Spring maize/Meta-analysis分类
农业科技引用本文复制引用
陈亚飞,王辉,牛彪,殷俐娜,王仕稳,邓西平..黄土高原春玉米氮肥生产力对不同耕作措施的响应:Meta分析[J].中国生态农业学报（中英文）,2024,32(5):755-765,11.基金项目
国家重点研发计划项目(2022YFD1901605,2021YFD19700705)资助 This study was supported by the National Key Research and Development Progame of China(2022YFD1901605,2021YFD19700705). （2022YFD1901605,2021YFD19700705）
