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。
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.
出处
《仲恺农业技术学院学报》
1999年第4期19-24,共6页
Journal of Zhongkai Agrotechnical College
基金
国家自然科学基金!(39570 437)
关键词
冬小麦
水分亏缺
物质生产
磷
winter-wheat,water deficit,mass-production,phosphorus
