文献类型：期刊文献

中文题名：桑树/大豆间作对植物生长及根际土壤微生物数量和酶活性的影响

英文题名：Effects of mulberry/soybean intercropping on the plant growth and rhizosphere soil microbial number and enzyme activities.

作者：胡举伟[1] 朱文旭[2] 张会慧[1] 许楠[1] 李鑫[1] 岳冰冰[1] 孙广玉[1]

第一作者：胡举伟

机构：[1]东北林业大学生命科学学院;[2]中国林业科学研究院林业研究所林木遗传育种国家重点实验室

年份：2013

卷号：24

期号：5

起止页码：1423-1427

中文期刊名：应用生态学报

外文期刊名：Chinese Journal of Applied Ecology

收录：MEDLINE(收录号：24015565);CSTPCD;;Scopus(收录号：2-s2.0-84879171196);北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；PubMed;

基金："十二五"国家科技支撑计划项目(2011BAD08B02-3);黑龙江省重大科技攻关项目(GA09B201-02);东北林业大学学术名师支持计划项目资助

语种：中文

中文关键词：桑树;大豆间作;根系分隔;土壤酶活;土壤微生物

外文关键词：intereropping of mulberry and soybean; root separation; soil enzyme; soil microbe

分类号：S344.2

摘要：利用根系分隔试验的方法,研究了桑树/大豆间作体系中植株生长、根际土壤酶和土壤微生物的变化.结果表明:根系不分隔处理的桑树和大豆的株高、叶片数、根长和根冠比等生长指标均高于塑料膜分隔和尼龙网分隔处理,大豆有效根瘤数较多.不分隔、尼龙网分隔处理的桑树和大豆的根际土壤磷含量比塑料膜分隔分别高10.3%、11.1%和5.1%、4.6%.不分隔和尼龙网分隔处理的桑树和大豆根际微生物数量、微生物多样性和土壤酶活性均高于塑料膜分隔处理.表明桑树和大豆间作具有明显的种间促进效应.
A root separation experiment was conducted to investigate the plant growth and rhizo- sphere soil microbes and enzyme activities in a mulberry/soybean intercropping system. As com- pared with those in plastic barrier and nylon mesh barrier treatments, the plant height, leaf num- ber, root length, root nodule number, and root/shoot ratio of mulberry and soybean in non-barrier treatment were significantly higher, and the soybean＇ s effective nodule number was larger. The available phosphorous content in the rhizosphere soils of mulberry and soybean in no barrier and nylon mesh barrier treatments was increased by 10.3% and 11. 1%, and 5. 1% and 4.6%, respectively, as compared with that in plastic barrier treatment. The microbial number, microbial diversity, and enzyme activities in the rhizosphere soils of mulberry and soybean were higher in the treatments of no barrier and nylon mesh barrier than in the treatment of plastic barrier. All the re- suits indicated that there was an obvious interspecific synergistic effect between mulberry and soy- bean in the mulberry/soybean intercropping system.