轮作对日光温室土壤环境生态修复的影响.PDFVIP

2010, 32( 4) : 407~ 412 Journal of Jilin Agricultural University http: / / xuebao. jlau. edu. cn E2mail : jlndxb@ vip. sina . com X 杜社妮1, 2, 白岗栓1, 2XX 1. 712100 , 712100; 2. , : 以黄瓜连作为对照, 研究了日光温室中黄瓜 ) 休闲、黄瓜 ) 番茄、黄瓜 ) 玉 米、黄 瓜 ) 大蒜、黄 瓜 ) 菠 菜和 黄瓜 ) 芹菜 6 种轮作方式对土壤养分、盐分、微 生物区系、酶活性 等的影 响。结果表 明: 黄 瓜 ) 休闲和 黄 瓜 ) 大蒜轮作土壤的全氮、速效氮、有效磷和速效钾含量高于对照; 黄瓜 ) 番茄轮作土壤的全氮和速效氮高于 对照, 有效磷和速效钾含量低于对照; 黄瓜 ) 玉米轮作土壤全氮和速效磷含量高于对照, 速效氮和速效钾含量 低于对照; 黄瓜 ) 菠菜和黄瓜 ) 芹菜轮作土壤的 全氮含量低于对照, 速效氮、有效磷、速效钾含量高于对照( 黄 瓜 ) 芹菜轮作土壤的速效氮除外) 。轮作可以降低土壤 EC 值、盐分 和硝 态氮含 量。轮作 和休 闲改善 了土 壤 微生 物区系, 可提高酶的活性; 轮作增加了土壤细菌和放线 菌数量, 减少了真 菌数量, 休闲降低 了土壤细菌 和 真菌数量。黄瓜 ) 大蒜和黄瓜 ) 玉米是改良土壤生态环境效果较理想的轮作方式。 : 日光温室; 蔬菜; 连作; 轮作; 土壤环境; 生态修复 : S626. 5 : A : 100025684( 2010) 0420407206 Effect of Rotation on Zoology Restoring of Soil Environment in Green2 house DU She2ni1, 2, BAI Ga ng2shua n1, 2 1. Institute of Soil and Water Conservation, Northwest A F University, Yangling 712100, China ; 2. Institute of Soil and Water Conservation, CAS , Yangling 712100, China Abstract: Field experiments were carried out to study the effects of cucumber2fallow, cucumber2tomato, cucumber2maize, cucumber2garlic, cucumber2spinach, and cucumber2celery on soil nutrients, salinity, microorganism and enzyme activity, with continuous cropping cucumber as comparison. The result showed that the content of total N, available N, available P and available K of cucumber2fallow and cucumber2 garlic was higher than that of continuous cropping cucumber. The content of total N, available N of cu2 cumber2tomato was higher than that of continuous cropping cucumber, the content of available P and available K was lower than that of cont inuous cropping cucumber. The content of total N, available P of cucumber2maize was higher than that of continuous cropping cucumber, and available N and available K was lower than that of it . The content of total N of cucumber2spinach and cucumber2celery was lower than that of continuous cropping cucumber, and available N, available P and available K was higher