不同种类绿肥翻压还田对植烟土壤微生物量及酶活性的影响

发布时间：2018-05-27 01:43

本文选题：绿肥 + 植烟土壤　；参考：《中国烟草科学》2016年04期

【摘要】：为探讨绿肥作物改良土壤的生态作用,通过3年田间定位试验,研究了不同种类绿肥翻压对植烟土壤微生物量和酶活性的影响。结果表明,绿肥翻压能提高植烟土壤微生物量和酶活性。与冬闲相比,土壤基础呼吸提高了196.44%,细菌、真菌和放线菌数量分别提高了36.29%、82.88%和9.16%,蔗糖酶、过氧化氢酶、磷酸酶和脲酶活性分别提高了35.82%、10.57%、17.13%和15.89%。显然翻压绿肥对土壤微生物量的影响要大于土壤酶活性。不同绿肥之间,禾本科绿肥对土壤微生物量和土壤酶活性的影响最大,其次是豆科绿肥,十字花科绿肥的影响较小。因此,利用烟田冬季休闲时间种植绿肥后翻压还田,可改善烟田土壤环境,是实现烟叶生产可持续发展的一个重要措施。
[Abstract]:In order to study the ecological effects of green manure crops on soil improvement, the effects of different green manure overturning pressure on microbial biomass and enzyme activity of tobacco planting soil were studied by three years field location experiments. The results showed that green manure could increase microbial biomass and enzyme activity in tobacco planting soil. Compared with winter fallow, the basic respiration of soil increased by 196.44%, the number of bacteria, fungi and actinomycetes increased by 82.88% and 9.16%, respectively. The activities of sucrase, catalase, phosphatase and urease increased 35.82% 10.577.13% and 15.89%, respectively. Obviously, the effect of green manure on soil microbial biomass was greater than that on soil enzyme activity. The effect of gramineous green manure on soil microbial biomass and soil enzyme activity was the largest, followed by legume green manure and cruciferous green manure. Therefore, it is an important measure to realize the sustainable development of tobacco leaf production by planting green manure and returning it to the field during winter leisure time, which can improve the soil environment of tobacco field.
【作者单位】：湖南农业大学;湖南省烟草公司湘西自治州公司;浙江中烟工业有限责任公司;
【基金】：湖南省烟草专卖局重点项目“湘西州烟区植烟土壤维护和改良研究与示范”(13-14ZDAa03) 浙江中烟工业有限责任公司项目“绿肥改良植烟土壤示范推广”(ZJZY2013B003)
【分类号】：S572;S154

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