摘要
为了明确蔬菜残株、生物菌肥对日光温室土壤的改良作用,测定了土壤微生物群落功能多样性、酶活性及速效养分含量等指标。结果表明,与对照(未施用蔬菜残株、生物菌肥)相比,蔬菜残株、生物菌肥单一施用均提高了土壤微生物群落Shannon、Simpson和McIntosh指数,蔬菜残株的作用大于生物菌肥,且随蔬菜残株施用量的增加促进作用增强。高量蔬菜残株(45000 kg/hm2)处理的McIntosh指数比低量蔬菜残株(22500 kg/hm2)、生物菌肥(75kg/hm2)和对照分别增加26.29%、37.87%、49.36%。低量蔬菜残株与生物菌肥对土壤酶活性、速效养分含量的提高有明显的协同作用;低量蔬菜残株与生物菌肥共同处理的土壤磷酸酶活性分别比单一低量蔬菜残株、生物菌肥处理增加40.35%、82.82%,有机质含量分别升高19.28%、41.94%,速效钾含量增加20.57%、92.97%。
Functional diversity of microbial communities,enzyme activities and available nutrient contents of soil were determined to study the improving effects of vegetable residues and bacterial mature on soil in greenhouse.The improving effect of single vegetable residues is larger than that of single bacterial mature,and the better the improving effect,the more vegetable residues.The McIntosh index of vegetable residues with high applying quantity is increased by 26.29%,37.87% and 49.36% compared with the treatments of vegetable residues in low applying quantity,bacterial manure and the control（without vegetable residues and bacterial manure）,respectively.Vegetable residues with low applying quantity and bacterial manure have distinctly synergistic effect in increasing enzyme activity and soil available nutrients.Compared with the treatments of vegetable residues in low applying quantity and bacterial manure,the phosphatase activity,organic matter and available potassium contents of vegetable residues with low applying quantity and bacterial manure mixture treatment are increased by 40.35%-82.82%,19.28%-41.94% and 20.57%-92.97%,respectively.
出处
《植物营养与肥料学报》
CAS
CSCD
北大核心
2011年第3期710-717,共8页
Journal of Plant Nutrition and Fertilizers
基金
国家"863"计划项目(2006AA10Z421)
中央级公益性科研院所基本科研业务费专项(0032010025)
农业部园艺作物遗传改良重点开放实验室项目
中国农业科学院作物科学研究所中央级公益性科研院所基本科研业务费专项资助
关键词
辣椒土壤
蔬菜殊株
生物菌肥
土壤微生物学特征
soil of pepper cultivation
vegetable residues
bacterial manure
soil microbiologic characteristics
