基于Meta分析评价秸秆覆盖对我国北方半干旱区不同生态区域小麦产量的影响

范园园, 吴海梅, 逄蕾, 路建龙, 夏博文, 杨旭海

Effects of Straw Mulching on Wheat Yield in Different Ecological Regions in Northern Semi-Arid Areas of China Based on Meta Analysis

Fan Yuanyuan, Wu Haimei, Pang Lei, Lu Jianlong, Xia Bowen, Yang Xuhai

表1 秸秆覆盖量、降雨量和积温与小麦产量及构成要素的相关关系

Table 1 Correlation of straw mulching, precipitation and accumulated temperature with wheat yield and yield components

项目Item 产量 Yield 有效穗数 Effective spike number 穗粒数 Grain number per spike 千粒重 1000-grain weight 秸秆覆盖量 Straw mulching 降雨量 Precipitation 积温 Accumulated temperature 产量Yield 1 有效穗数Effective spike number 0.809** -1 穗粒数Grain number per spike 0.796** -0.516* 1 千粒重1000-grain weight 0.882** -0.760** 0.525* -1 秸秆覆盖量Straw mulching 0.604* -0.541* 0.512* -0.538* 1 降雨量Precipitation 0.628* -0.565* 0.583* -0.532* 0.008 1 积温Accumulated temperature 0.558* -0.551* 0.506* -0.519* 0.037 0.030 1