覆膜栽培对旱地小麦籽粒产量及硫含量的影响
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罗来超,王朝辉,惠晓丽,张翔,马清霞,包明,赵岳,黄明,王森
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Effects of Plastic Film Mulching on Grain Yield and Sulfur Concentration of Winter Wheat in Dryland of Loess Plateau
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Lai-Chao LUO,Zhao-Hui WANG,Xiao-Li HUI,Xiang ZHANG,Qing-Xia MA,Ming BAO,Yue ZHAO,Ming HUANG,Sen WANG
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表1 各试验点冬小麦播前耕层0~20 cm土壤基础肥力
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Table 1 Basal fertility of the 0-20 cm soil layer before wheat sowing in each location
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试验点
Location | 有机质
Organic matter
(g kg-1) | 全氮
Total N
(g kg-1) | 硝态氮
NO3--N
(mg kg-1) | 铵态氮
NH4+-N
(mg kg-1) | 速效磷
Available P
(mg kg-1) | 速效钾
Available K
(mg kg-1) | 有效硫
Available S
(mg kg-1) | pH
(2.5:1.0) | | 山西桐城 SX-TC | 7.8 | 0.84 | 11.5 | 1.1 | 17.6 | 160.0 | 46.65 | 8.1 | | 山西刘家垣 SX-LJY | 10.8 | 0.80 | 22.6 | 0.4 | 10.7 | 202.4 | 36.68 | 7.9 | | 陕西御驾宫 SAX-YJG | 10.2 | 0.75 | 3.5 | 0.3 | 13.4 | 83.9 | 20.01 | 8.5 | | 陕西丁家 SAX-DJ | 8.5 | 0.77 | 13.1 | 2.6 | 4.5 | 130.0 | 9.89 | 8.2 | | 甘肃永清 GS-YQ | 7.9 | 0.90 | 16.8 | 0.8 | 12.0 | 102.2 | 2.14 | 8.4 | | 甘肃常河 GS-CH | 6.1 | 0.95 | 12.2 | 0.5 | 11.3 | 122.7 | 2.54 | 8.6 | | 甘肃平襄 GS-PX | 7.7 | 0.93 | 5.5 | 0.3 | 12.5 | 117.3 | 2.99 | 8.7 |
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