生物肥对有机黄瓜生长及土壤生物学特性的影响

通过田间试验，研究了3种不同生物肥(“中和牌”、“NST型”和“爸爱我”)配合有机肥施用对有机黄瓜生长及土壤微生物和几种土壤酶活性的影响.结果表明：3种生物肥配施处理均可显著增加有机黄瓜产量，促进黄瓜根系生长和提高叶片叶绿素含量；与单施有机肥相比，“中和牌”生物肥与有机肥配施增产10.4%，“NST型”和“爸爱我”分别增产12.4%和29.2%.黄瓜幼苗期、初花期及采收期，生物肥与有机肥配施处理的土壤微生物生物量碳、氮均显著高于单施有机肥处理；同时，生物肥与有机肥配合施用还增强了土壤脲酶、酸性磷酸酶和过氧化氢酶活性.

Effects of bio-fertilizer on organically cultured cucumber growth and soil biological characteristics

Field trials of organic farming were conducted to examine the effects of different bio-fertilizers on the organically cultured cucumber growth, soil enzyme activities, and soil microbial biomass. Four treatments were installed, i.e., organic fertilizer only (CK), bio-fertilizer “Zhonghe” combined with organic fertilizer (ZHH), bio fertilizer “NST” combined with organic fertilizer (NST), andbio-fertilizer “Bio” combined with organic fertilizer (BIO). Bio-fertilizers combined with organic fertilizer increased the cucumber yield significantly, and improved the root growth and leaf chlorophyll content. Comparing with that in CK, the cucumber yield in treatments ZHH, NST, and BIO was increased by 10.4%, 12.4%, and 29.2%, respectively. At the seedling stage, early flowering stage, and picking time of cucumber, the soil microbial biomass C and N in treatments ZHH, NST, and BIO were significantly higher than that in CK, and the activities of soil urease, acid phosphatase, and catalase were also higher.