不同降水年型黄土旱塬冬小麦免耕与深松轮耕蓄墒增收效应

于琦,李军,周栋,王淑兰,王浩,李敖,张元红,宁芳,王小利,王瑞

Effects of No-Tillage/Subsoiling Rotational Tillage System on Increasing Soil Water Storage and Crop Yield Under Different Precipitation Patterns of Winter Wheat in the Loess Plateau

YU Qi,LI Jun,ZHOU Dong,WANG ShuLan,WANG Hao,LI Ao,ZHANG YuanHong,NING Fang,WANG XiaoLi,WANG Rui

表1 2007—2018年冬小麦夏闲期、生育期和生产年度降水年型划分情况

Table 1 Precipitation patterns in summer fallow, growth period and productivity period of winter wheat in 2007-2018

年份 Year AR (mm) DI-1 降水类型 Precipitation patterns TPG (mm) DI-2 降水类型 Precipitation patterns TPF (mm) DI-3 降水类型 Precipitation patterns 2007-2008 511.4 0.14 N 204.8 -0.16 N 306.6 0.32 N 2008-2009 624.9 1.74 H 341.7 2.10 H 283.2 -0.06 N 2009-2010 395.9 -1.49 D 207.9 -0.11 N 188.0 -1.58 D 2010-2011 458.0 -0.61 D 152.5 -1.03 D 305.5 0.30 N 2011-2012 598.8 1.37 H 243.3 0.47 H 355.5 1.10 H 2012-2013 425.9 -1.07 D 165.9 -0.81 D 260.0 -0.43 D 2013-2014 465.0 -0.51 D 199.2 -0.26 N 265.8 -0.34 N 2014-2015 567.8 0.94 H 167.6 -0.78 D 400.2 1.82 H 2015-2016 505.2 0.05 N 295.2 1.33 H 210.0 -1.23 D 2016-2017 477.5 -0.34 N 231.6 0.28 N 245.9 -0.65 D 2017-2018 485.5 -0.23 N 151.6 -1.04 D 333.9 0.75 H