施用生物有机肥对连作黄瓜生长及根际微环境的影响

发布时间：2018-11-08 15:25

【摘要】：为了研究施用生物有机肥对连作黄瓜生长及根际微环境的影响,笔者制成了具有自主知识产权的生物有机肥,设置了对照(CK)、有机肥处理(OF)与生物有机肥处理(BOF)3组试验,并采用盆栽试验以检测不同处理下黄瓜植株及其根际土壤各项指标的差异。结果表明,施用生物有机肥后黄瓜连作土壤中的细菌(12.36×10~7cfu·g~(-1))和放线菌(5.27×10~6cfu·g~(-1))数量大增而真菌(1.23×10~5cfu·g~(-1))数量锐减;土壤中pH及有效磷、速效钾含量显著提高,增幅分别为6%~11%、24%~125%、15%~29%;SOD和POD活性显著升高,增幅分别为18%~42%、47%~113%。施用生物有机肥改变了土壤微生物区系,改善了土壤的理化性状,提高了抗氧化保护酶活性,植株长势明显优于对照,效果显著。
[Abstract]:In order to study the effect of bio-organic fertilizer application on the growth and rhizosphere microenvironment of continuous cropping cucumber, a biological organic fertilizer with independent intellectual property rights was prepared and the control (CK), was set up. Three groups of organic fertilizer treatment (OF) and biological organic fertilizer (BOF) were used to test the differences of cucumber plants and their rhizosphere soil indexes under different treatments. The results showed that the number of bacteria (12.36 脳 10~7cfu g ~ (-1) and actinomycetes (5.27 脳 10~6cfu g-1) increased significantly and the number of fungi (1.23 脳 10~5cfu g-1) decreased sharply after the application of bio-organic fertilizer. The contents of pH, available phosphorus and available potassium in the soil were significantly increased by 61.11% and 24%, respectively, and the activities of pH and POD were significantly increased, and the increase was 18%, 4227.47% and 1133%, respectively.The contents of pH and available phosphorus and available potassium in the soil increased significantly, and the contents of pH and available phosphorus and available potassium in the soil increased significantly. Application of bio-organic fertilizer changed soil microbial flora, improved soil physical and chemical properties, increased antioxidant protection enzyme activity, plant growth was significantly better than the control, and the effect was significant.
【作者单位】：山西省农业科学院生物技术研究中心;太原学院;山西省农业科学院农业资源与经济研究所;
【分类号】：S642.2

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