生物有机肥与石灰对土壤肥力和木薯产量质量的影响  

Effects of Bioorganic Fertilizer and Lime on Soil Fertility,Yield and Quality of Cassava

作　　者：曾黎明[1,2] 王少静[1] 宁琳[1] 李伏生[1] 

机构地区：[1]广西大学农学院,南宁530005 [2]广西亚热带作物研究所,南宁530001

出　　处：《中国农学通报》2011年第15期212-216,共5页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金(NO.50869001)

摘　　要：通过田间试验,研究在3种石灰水平下,生物有机肥对土壤养分含量、生物活性和木薯产量质量的影响。结果表明:与单施化肥比较,50%生物有机肥处理的土壤有机质、速效K含量和转化酶活性分别提高12.5%、36.7%和26.8%;土壤细菌、真菌和放线菌数量分别增加21.4%、41.8%和48.4%;25%生物有机肥处理鲜薯产量提高18.4%,淀粉产量增加17.9%。这表明施用生物有机肥能提高土壤有机质、速效K含量和微生物数量,增强土壤转化酶活性,并能提高鲜薯产量和淀粉产量。施用石灰能提高土壤细菌和放线菌数量,但降低土壤有机质、速效N和速效K含量。Under three different lime levels,effects of bioorganic fertilizer on soil nutrient content,biological activity and yield and quality of cassava were investigated using field experiments.The results showed that：compared to only chemical fertilizer treatment,50% bioorganic fertilizer treatment increased soil organic matter content,available K content,invertase activity,bacterium,fungus and actinomyces by 12.5%,36.7%,26.8%,21.4%,41.8% and 48.4%.And 25% of bioorganic fertilizer treatment increased the fresh yield by 18.4% and starch yield by 17.9%.Thus bioorganic fertilizer increased the organic matter and available K contents,microorganism numbers and invertase activity in soil,and increased fresh cassava yield and starch yield.Lime treatment increased the bacterium and actinomyces numbers in soil,but decreased organic matter,available N and K contents in soil.

关 键 词：木薯 生物有机肥 石灰 土壤肥力 

分 类 号：S144.1[农业科学—肥料学]