不同施氮量及施氮方式对大豆根瘤生长及产量的影响  

Effects of Different Nitrogen Application and Methods on Nodule Growth and Yield of Soybean(Glycine max L.)

作　　者：姬月梅[1] 罗瑞萍[1] 赵志刚[1] 连金番[1] 

机构地区：[1]宁夏农林科学院农作物研究所/国家大豆产业技术体系银川综合试验站,宁夏银川750105

出　　处：《大豆科学》2017年第6期887-893,共7页Soybean Science

基　　金：宁夏回族自治区自然科学基金(MZ14199);国家现代农业产业技术体系(CARS-004);宁夏农林科学院自主研发青年基金(NKYQ-13-07)

摘　　要：以宁夏地区主推品种中黄30为主要研究对象,采用再裂区试验设计,通过接种高效根瘤菌,探讨根瘤菌、施氮量和施氮方式对大豆根瘤干重、根瘤数量以及大豆产量的影响。结果表明:施氮量显著影响大豆结瘤和大豆产量;各处理随着每次施氮量的增加,根瘤干重和根瘤数量的变化趋势均为先增加后下降;产量表现为分次施氮各处理产量>一次性施氮各处理产量>不施氮(B1)产量;接种根瘤菌处理较不接种根瘤菌处理的根瘤数量及大豆产量显著增加;是否接种根瘤菌与施氮量互作、施氮量与施氮方式互作以及是否接种根瘤菌、施氮量和施氮方式互作对大豆产量均产生极显著影响,中黄30产量最佳组合是A2B3C2(接种根瘤菌、施氮量在75 kg·hm^(-2)且分次施氮)的前提下,产量最高,达到6 020.37 kg·hm^(-2),较不施氮增产8.36%。Taking Zhonghuang 30 as the research object in Ningxia,the effect of rhizobium,nitrogen fertilizer and nitrogen application on the dry weight,the number of root nodule and the yield of soybean were studied by inoculating high efficient rhizobia.The results showed that the amount of nitrogen applied significantly affected soybean nodulation and soybean yield,and the change trend of dry weight and number of root nodules increased with the increasing of nitrogen application rate.The yield was expressed as the multiple netrogen application treatments single nitrogen application treatment no nitrogen application treatment（B1）.The number of nodules and the yield of soybean in the treatment of rhizobium were significantly higher than that of no rhizobia treatment.The interactions,whether inoculation of rhizobium and the nitrogen amount,the nitrogen amount and nitrogen application,and whether the inoculation of rhizobium,nitrogen amount and nitrogen application,were significant on soybean yiled.The highest yield combination of Zhonghuang 30 was A2B3C2（inoculation of rhizobia,nitrogen amount 75 kg·ha^-1 and multiple nitrogen application）,the highest yield was 6 020.37 kg·ha^-1,8.36% higher than no nitrogen treatment.

关 键 词：大豆 根瘤 施氮量 施氮方式 产量 

分 类 号：S565.1[农业科学—作物学]