不同产量水平稻茬小麦氮素需求特征研究
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杜宇笑, 李鑫格, 王雪, 刘小军, 田永超, 朱艳, 曹卫星, 曹强
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Nitrogen demand characteristics with different grain yield levels for wheat after rice
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Yu-Xiao DU, Xin-Ge LI, Xue WANG, Xiao-Jun LIU, Yong-Chao TIAN, Yan ZHU, Wei-Xing CAO, Qiang CAO
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表2 小麦生育期降雨量和试验田块土壤基础理化指标
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Table 2 Rainfall during growth period of wheat and soil properties of experimental fields
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地点Location | 试验年份Year | 全氮 Total N (g kg-1) | 碱解氮Available N (mg kg-1) | 速效磷Available P (mg kg-1) | 速效钾Available K (mg kg-1) | 有机质 Organic matter (g kg-1) | 磷肥施用量 P rate (kg hm-2) | 钾肥施用量 K rate (kg hm-2) | 生育期降水量 Rainfall (mm) | 仪征市 Yizheng | 2010-2011 | 1.27 | 112.48 | 45.63 | 89.39 | 20.50 | 120 | 135 | 1172.4 | 如皋市 Rugao | 2013-2014 | 2.49 | 170.48 | 52.63 | 93.48 | 30.50 | 120 | 120 | 1387.0 | 徐州市 Xuzhou | 2013-2014 | 1.55 | 122.53 | 45.83 | 80.72 | 35.50 | 135 | 135 | 695.6 | 兴化市 Xinghua | 2018-2019 | 1.37 | 102.86 | 28.89 | 120.59 | 18.68 | 105 | 120 | 492.4 |
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