容重、含水量和播期对苗期玉米根际土壤酶活性及微生物量碳和氮的影响

发布时间：2018-05-13 09:45

  本文选题：容重 + 含水量　； 参考：《吉林农业大学学报》2016年06期

【摘要】：通过盆栽试验方法,研究不同容重、含水量及分期播种对玉米苗期根际土壤酶活性(蔗糖酶、脲酶、磷酸酶、过氧化氢酶)和微生物量碳、氮的变化规律。结果表明:容重、含水量、分期播种及三者交互对玉米苗期根际土壤微生物酶活性及微生物量碳、氮含量作用显著。晚播、高含水量能显著提高玉米苗期根际土壤酶活性、微生物量碳和氮含量。对于根际土壤微生物活性,最适容重为1.3 g/cm~3,最佳处理为B_(1.3)M_(70)T_2。
[Abstract]:The changes of soil enzyme activity (sucrase, urease, phosphatase, catalase) and microbial biomass carbon and nitrogen in rhizosphere of maize seedlings were studied by pot experiment. The results showed that the soil microbial enzyme activity, microbial biomass carbon and nitrogen content were significantly affected by bulk density, water content, seeding by stages and their interaction. Late sowing, high water content can significantly increase soil enzyme activity, microbial biomass carbon and nitrogen content. For rhizosphere soil microbial activity, the optimum bulk density is 1.3 g / cm ~ (-1), and the best treatment is BSP 1.3 / M / T _ (70) T _ (2).
【作者单位】： 吉林农业大学资源与环境学院吉林省商品粮基地土壤资源可持续利用重点实验室;山东省临沭县环境保护局;
【基金】：公益性行业(农业)科研专项(201503116-06) 吉林省科技发展重点项目(20130206019NY)
【分类号】：S513;S154
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本文编号：1882641