水肥耦合条件下间作小麦光合特性的响应  

Response of Intercropping Wheat Photosynthetic Characteristics during the Water and Fertilizer Coupling Condition

作　　者：王德权[1] 马忠明[2] 杨蕊菊[2] 孙景玲[1] 王平[1] 杜少平[1] 

机构地区：[1]甘肃农业大学,兰州730070 [2]甘肃省农业科学院土壤肥料与节水农业研究所,兰州730070

出　　处：《中国农学通报》2009年第15期215-218,共4页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划课题"荒漠灌耕土区非充分灌溉条件下肥水高效耦合技术研究"(2006BAD25B09)

摘　　要：在不同肥水条件下,对间作小麦灌浆期的光合特性进行了研究,结果表明,间作小麦灌浆期的光合特性在不同肥水组合下的变化不同,灌溉量5550m3/hm2条件下的各肥料处理对间作小麦光合特性和水分利用效率(WUE)的提高显著高于其他肥水处理。灌溉量5550m3/hm2条件下,间作小麦Pn与WUE呈正相关。肥水管理以灌溉量5550m3/hm2、氮肥施用量420kg/hm2或灌溉量5550m3/hm2、氮肥施用量630kg/hm2的方案最优。The test was carried out in oasis irrigation area of Hexi, and studied on intercropping wheat photosynthetic characteristics during the filling stage in the water and fertilizer coupling condition. The results indicated that variation of photosynthetic characteristics were different in the different water and fertilizer conditions. Irrigation quantity （5550 m^3/hm^2） combined with other treatments of fertilizer were better than other treatment including photosynthetic characteristics and WUE. Leaf photosynthesis rate of intercropping wheat was in positive correlation with the WUE. Optimum scheme of fertilizer and water management were irrigation water 5550 m^3/hm^2, nitrogen 420kg/hm^2 or irrigation water 5550 m^3/hm^2, nitrogen 630 kg/hm^2.

关 键 词：间作小麦 水肥耦合 灌浆期 光合特性 

分 类 号：S512.311[农业科学—作物学]