小麦蚕豆间作对作物根系活力、蚕豆根瘤生长的影响  

Effects of Wheat and Broad Bean Intercropping on the Root Activity and Root Nodulation of Broad Bean

作　　者：周照留[1] 赵平[1] 汤利[1] 段红平[1] 张福锁[2] 朱有勇[3] 郑毅[1] 

机构地区：[1]云南农业大学资源与环境学院,云南昆明650201 [2]中国农业大学植物营养系,北京100094 [3]云南农业大学植物保护学院,云南昆明650201

出　　处：《云南农业大学学报》2007年第5期665-671,共7页Journal of Yunnan Agricultural University

基　　金：国家自然科学资金项目(30460061);省院省校合作项目(2003FCCFC01A009)

摘　　要：通过田间试验研究了小麦、蚕豆间作条件下不同施氮水平对小麦、蚕豆根系活力和蚕豆根瘤生长状况的影响,结果表明:氮肥施用对作物根系活力、蚕豆根瘤生长及作物产量均有显著影响,在同样氮素水平下间作小麦的根系活力均比单作小麦高,如孕穗期在N0,N90,N180,N270分别增加了0.91%,3.5%,3.0%,2.4%;而间作蚕豆的根系活力均低于单作蚕豆:如开花期在N0,N90,N180,N270分别降低了1.3%,28.1%,13.7%,5.7%;间作蚕豆根瘤数均高于单作蚕豆,如结荚期在N0,N90,N180,N270分别提高了13.6%,31.4%,5.4%,30.6%,随施氮量的增加,根瘤数均呈减少的趋势。间作蚕豆产量结果是N180>N90>N0>N270,间作小麦产量结果是N180>N270>N90>N0。Field experiment was carried out to investigate the effect of nitrogen fertilizer on root activity of broad bean and wheat, and broad bean＇s nodule growth situation in wheat/broad bean intercropping system. The result showed that the effect of nitrogen fertilizer on output and the land equivalent of intercropping were significant. In the same nitrogen fertilizer, wheat root activity in intercropping was higher than monoculture system, in the boot stage N0, N90, N180, N270 separately enhanced 0. 91% , 3.5% , 3.0% ,2.4%. Otherwise broad bean root activity in intercropping was lower than monoculture; in the bloom stage N0, N90, N180, N270 separately reduced 1.3% ,28. 1% , 13.7 % ,5.7 %. The broad bean nodules were more than monocuhure, in the bear pots stage N0, N90, N180, N270 separately enhanced 13.6% ,31.4% ,5.4% , 30. 6%. With the increasing of nitrogen fertilizer the nodules of broad bean were decreased. Broad bean output of bears fruit is N180 〉 N90 〉 N0 〉 N270 and wheat yields is N180 〉 N270 〉 N90 〉 N0 in intercropping system.

关 键 词：小麦 蚕豆 间作 产量 根系活力 根瘤数 

分 类 号：S31[农业科学—作物栽培与耕作技术]