长期施用不同基肥对日光温室土壤环境的影响研究

试验研究长期施用不同种类基肥对日光温室土壤理化特性以及生物环境的影响结果表明:秸秆有机肥处理土壤物理性状良好,土壤速效养分含量、土壤酶活性及放线菌数量较高,细菌和真菌数量比值(B/F)稳定,综合土壤肥力在3个处理中最高;长期施用膨化鸡粪处理土壤酸化快,土壤养分含量处于中等,土壤酶活性较高,土壤细菌和真菌数量增多,可能会引起致病菌的增殖;缓释肥作为基肥施用,可加速土壤速效养分积累,但土壤有机质含量较低,土壤酶活性和微生物活性都不高。生产上应该根据实际情况,利用有机-无机肥料的配合施用以达到理想效果。

Effects of a long-term utilization of different base-fertilizers on soil environment in solar greenhouse

An elementary study was conducted to study the influence of a long-term utilization of different base-fertilizers on physical and chemical properties,and the bio-environment of soil in solar greenhouse.The results show that the soil treated by straw organic fertilizer owns good physical and chemical properties,and higher fertility.The enzyme activity of the treated soil is high with vigorous microorganism vitality and the ratio of bacteria to fungi is stable.The general soil fertility of soil treated by straw organic fertilizers is the highest among the three treatments.The long time application of the processed chook manure fertilizer induces the soil's acidity stronger,the soil nutrient content is the mediam of three treatments,the enzyme activity higher,the population of soil bacteria greater,but the fungi quantity excessive,which may cause the multiplication of germina.As the base-fertilizer,the slow-released fatty has positive influences on soil available nutrients.But the organic matter content,soil enzyme activity and microorganism activity of the treated soil are all lower.The cooperative application of organic-inorganic fertilizers according to the actual circumstance should be taken to attain the ideal results in the production.