微生物钾肥对土壤理化性状和葡萄光合作用及果实品质的影响  

Effects of microbial potassium fertilizer on the physical and chemical properties of soil and the photosynthesis and fruit quality of grape

作　　者：张朝轩[1] 杨天仪[1] 骆军[1] 吴淑杭[2] 周德平[2] 蒋爱丽[1] 叶正文[1] 吴德平 

机构地区：[1]上海市农业科学院林木果树研究所上海市设施园艺重点实验室,上海201106 [2]上海市农业科学院环境科学研究所,上海201106 [3]上海市崇明县林业站,上海202150

出　　处：《上海农业学报》2010年第2期70-73,共4页Acta Agriculturae Shanghai

基　　金：上海市科技兴农重点攻关项目[沪农科攻字(2003)第10-1号];上海市科技兴农推广项目[沪农科推字(2007)第6-8号];上海市科技兴农推广项目[沪农科推字(2007)第2-9号]资助

摘　　要：以巨峰葡萄为试材,研究了果实膨大期施用不同浓度微生物钾肥对土壤理化性状和肥力的影响,同时探讨了微生物钾肥对葡萄叶片光合作用和果实品质的影响。结果表明:与对照相比,根施微生物钾肥能够降低土壤容重,改善土壤理化性状,提高土壤肥力,特别是根施100倍和300倍微生物钾肥处理,土壤碱解氮、速效钾和葡萄叶片的全钾含量均显著高于对照;100倍和300倍微生物钾肥处理还显著提高了葡萄叶片气孔导度和净光合速率,降低了叶片胞间CO_2浓度;施用微生物钾肥也显著提高了葡萄的可溶性固形物含量和果实硬度。The grape variety Kyoho was used as a test material,and microbial potassium fertilizer of various dilutions was applied at the fruit expanding stage in order to study the effects .of the fertilizer on the soil physical and chemical properties and the leaf photosynthesis and fruit quality. The results showed that application of the fertilizer decreased the volume weight of soil and improved the soil physical and chemical properties and fertility. Application of the fertilizer at 100 or 300-fold dilution significantly increased the alkali-hydrolyzable N and readily available K in soil and the total K in the leaves,significantly improved the stomatal conductance and net photosynthetic rate of the leaves,significantly decreased the intercellular CO2 concentration of the leaves,and also significantly improved the soluble solids and hardness of the fruit.

关 键 词：微生物钾肥 葡萄 光合作用 果实品质 

分 类 号：S144[农业科学—肥料学] S663.1[农业科学—农业基础科学]