科尔沁沙地南部果-草(粮)间作模式对土壤微生物和酶的影响  

Effect of different kinds of intercropping with fruit/grass(crop) on soil microorganisms and enzymes in the south Horqin sandy land

作　　者：蔡倩[1,2] 杜国栋[1,3] 吕德国[1,3] 何跃 姜涛 孙继军 于涛 

机构地区：[1]沈阳农业大学园艺学院,辽宁沈阳110161 [2]辽宁省风沙地改良利用研究所,辽宁阜新123000 [3]沈阳农业大学北方果树育种与生理生态研究所,辽宁沈阳110161

出　　处：《干旱地区农业研究》2010年第4期217-222,共6页Agricultural Research in the Arid Areas

基　　金：辽宁省科技厅攻关项目(2008207003)

摘　　要：试验于2007-2008年在辽宁省阜新市彰武县章古台镇（风沙半干旱区）进行,研究了果-草（粮）间作模式对土壤微生物和酶活性的影响。结果表明,3个间作模式处理在整个生长季土壤微生物数量和土壤酶活性总体上表现为仁用杏行间连续两年间作花生〉间作谷子〉间作麻黄草,均高于行间清耕,与行间清耕呈极显著差异。相关分析表明各间作处理微生物数量和酶活性之间绝大部分达显著或极显著相关。可见果-草（粮）间作模式显著提高了土壤细菌、真菌和放线菌的数量,增强了土壤脲酶、磷酸酶和过氧化氢酶的活性,改善了土壤微环境,提高了土壤质量。The effect of different kinds of intercropping with fruit and grass（crop） on soil microorganisms and enzyme activities were studied in Zhanggutai Town,Zhangwu County of Liaoning Province from 2007 to 2008.The results showed that the soil microbe numbers and enzyme activities of three kinds of intercropping followed peanutmilletephedra in the whole growth stages,all higher than monoculture. Furthermore,differences between the three treatments and the monoculture were greatly significant.Correlations between microorganisms and enzyme activities in most treatments were significant or greatly significant.The numbers of bacteria,fungi and actinomycete were increased and the activities of urease,phosphatase and catalase were all enhanced significantly after intercropping.Consequently,intercropping could improve soil micro-environment and soil quality.

关 键 词：间作模式 土壤微生物 土壤酶活性 

分 类 号：S154.34[农业科学—土壤学]