| 华北地区不同底墒对冬小麦生长发育及产量影响的研究 |
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| 引用本文： | 刘庚山,安顺清,吕厚荃,郭安红.华北地区不同底墒对冬小麦生长发育及产量影响的研究[J].应用气象学报,2000(Z1). |
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| 作者姓名： | 刘庚山 安顺清 吕厚荃 郭安红 |
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| 作者单位： | 中国气象科学研究院!北京100081 |
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| 基金项目： | “九五”国家科技攻关项目!“农业气象灾害防御技术研究”96-0 2 0 -0 1 -0 1专题资助 |
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| 摘 要： | 1997年 9月至 1 999年 6月在中国气象局固城农业气象试验基地人工控制农田水分试验场进行了冬小麦不同底墒处理的试验 ,结果表明 :底墒显著影响冬小麦的生长发育和产量 ,对冬小麦总生物量、地上和地下生物量的影响在小麦生长后期比前期明显 ;底墒与植株高度、叶面积系数有良好的二次曲线关系 ;底墒显著影响产量构成因素 ,其与籽粒重有相当好的二次曲线关系 ,并据此确定了冬小麦播种时不同深度土层的最佳底墒 :0～ 1 m为 88% ,0～ 2 m为82 % .
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| 关 键 词： | 底墒 冬小麦 生长发育 产量 水分利用效率 |
RESEARCH ON THE EFFECT OF SOIL MOISTURE BEFORE SOWING ON THE GROWTH AND YIELD OF WINTER WHEAT IN NORTH CHINA |
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| Liu Gengshan,An Shunqing,Lu Houquan,Guo Anhong.RESEARCH ON THE EFFECT OF SOIL MOISTURE BEFORE SOWING ON THE GROWTH AND YIELD OF WINTER WHEAT IN NORTH CHINA[J].Quarterly Journal of Applied Meteorology,2000(Z1). |
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| Authors: | Liu Gengshan An Shunqing Lu Houquan Guo Anhong |
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| Abstract: | From Sep. 1997 to June 1999, experiments on the effect of different soil moisture before sowing(SMBS) on the growth and yield of winter wheat were carried out in the moisture controlled crop fields in the Gucheng Agrometeorological Experimental Base of China Meteorological Administration. The results indicate that SMBS remarkably affects the growth and yield of winter wheat. The effects on total biomass as well as biomass both beneath and above the surface were more obvious in the late growing period. SMBS has quadratic relations with the plant height, leaf area index and grain weight. The optimal SMBS in different soil layers were obtained: 88% of FWC in the 0-100cm soil layer and 82% of FWC in the 0-200cm layer. |
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| Keywords: | Soil moisture before sowing(SMBS) Winter wheat Growth Yield Water use efficiency |
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