土壤学报2011，Vol.48Issue(1)：175-184,10.
小麦、毛苕子与黄瓜轮作对土壤微生态环境及产量的影响
EFFECTS OF ROTATIONS OF CUCUMBER WITH WHEAT AND HAIRY VETCH ON SOIL MICRO-ECOLOGICAL ENVIRONMENT AND ITS YIELD
摘要
Abstract
Soil available nutrients, enzyme activities, microbial community diversities and cucumber yield in a field under crop rotations of cucumber with wheat or hairy vetch were investigated with conventional methods and PCR-DGGE to study the effect of the rotation on soil micro-ecological environment and yield of cucumber. Results indicate that the rotations significantly increased cucumber yield and effectively improved soil micro-ecological environment. The rotation of wheat-cucumber increased the yield of cucumber the most significantly (p＜0.01) , by 28.04％ , and improved the overall activities of polyphenol oxidase, catalase and urease. The rotation of hairy vetch-cucumber increased the yield of cucumber by 16.78％ and improved the contents of soil available nutrients, and the invertase activity significantly over CK (p ＜0.01 ). DGGE analysis shows that the rotation helped increase the diversity of bacterial community in the rhizosphere, while decreasing that of fungi at the late fruit-bearing stage. The effect of the rotation of hairy vetch-cucumber was more significant. The rotation of wheat-cucumber showed certain effect on rhizosphere soil funged and bacterial community structures 30 days after transplanting of cucumber. To sum up, the rotations of cucumber with wheat and with hairy vetch help mitigate the cucumber soil sickness, improve the soil microbial eco-environment and raise the yield of cucumber.关键词
黄瓜/轮作/土壤微生态环境/产量Key words
Cucumber/ Rotation/ Soil micro-ecological environment/ Yield分类
农业科技引用本文复制引用
于高波,吴凤芝,周新刚..小麦、毛苕子与黄瓜轮作对土壤微生态环境及产量的影响[J].土壤学报,2011,48(1):175-184,10.基金项目
国家自然科学基金项目(30571264)、农业部行业计划项目(nyhyzx07-007)和黑龙江省杰出青年基金项目(JC200803)资助 （30571264）
