| 土壤水分亏缺及磷肥对冬小麦物质生产的影响 |
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| 引用本文： | 兰霞,周殿玺.土壤水分亏缺及磷肥对冬小麦物质生产的影响[J].仲恺农业技术学院学报,1999,12(4):19-24. |
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| 作者姓名： | 兰霞 周殿玺 |
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| 作者单位： | 仲恺农业技术学院农学系!广州510225(兰霞)，中国农业大学农学系!北京100094(周殿玺，兰林旺) |
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| 基金项目： | 国家自然科学基金!(39570 437) |
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| 摘 要： | 试验于1995～1996年度进行,供试品种为冀麦38在田间条件下,通过不同节水灌溉、不同施磷处理探讨了土壤水分亏缺对冬小麦光合和物质生产的影响及磷肥的补偿效应结果表明:不同时期的水分胁迫均使净同化率、叶面积系数、光合强度、群体生长率降低,但影响程度不同;磷肥对水分胁迫不利影响的补偿作用主要在于对叶面积的扩大和穗数的增加;拔节至开花期、开花至灌浆初期的土壤干旱均会引起产量显著下降
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| 关 键 词： | 冬小麦 水分亏缺 物质生产 磷 |
INFLUENCE OF WATER DEFICIT AND PHOSPHORUS FERTILIZER ON THE WINTER-WHEAT MASS-PRODUCTION |
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| Lan Xia,Zhou Dianxi,Lan Linwang.INFLUENCE OF WATER DEFICIT AND PHOSPHORUS FERTILIZER ON THE WINTER-WHEAT MASS-PRODUCTION[J].Journal of Zhongkai Agrotechnical College,1999,12(4):19-24. |
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| Authors: | Lan Xia Zhou Dianxi Lan Linwang |
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| Institution: | Lan Xia 1 Zhou Dianxi 2 Lan Linwang 2 |
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| Abstract: | Experiment was conducted between 1995 and 1996 Wheat variety Jimai 38 was used in the experiment under field condition Different irrigation and phosphorus fertilizer treatments were applied to study the effects of soil water deficit on the winter-wheat photosynthesis and mass-production and phosphorus fertilizer compensative effects to water stress The main results were as follows:The water stress during the three different periods could decrease net assimilation rate,leaf area index and photosynthesis respectively, phosphorus fertilizer could mainly enhance the leaf area and ear number to compensate the adverse effect of water stress.The water stress between shooting and blooming or grain building could decrease the grain yield significantly. |
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| Keywords: | winter-wheat water deficit mass-production phosphorus |
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