日光温室有机基质型无土栽培甜瓜养分利用率的研究  

Nutrition utilization rate of muskmelon in organic substrate culture under solar greenhouse

作　　者：高俊杰[1] 于贤昌[1] 焦自高[2] 王崇启[2] 董玉梅[2] 

机构地区：[1]山东农业大学园艺学院,泰安271018 [2]山东省农业科学院蔬菜研究所,济南250100

出　　处：《中国生态农业学报》2007年第5期84-86,共3页Chinese Journal of Eco-Agriculture

基　　金：国家"十五"科技攻关项目(2002BA516A07);山东省教育厅项目(J00152)资助

摘　　要：研究了不同化肥施用量对日光温室有机基质型无土栽培甜瓜产量及N、P和K吸收量、吸收比例和利用率的影响。结果表明:适量施用化肥可显著提高甜瓜果实产量,提高有机基质养分和化肥利用率;化肥施用过多,基质养分和化肥利用率均有所降低;研究确定的日光温室有机基质型无土栽培甜瓜适宜化肥施用量计算方法为:(甜瓜目标产量需肥量-有机基质速效养分量)/化肥养分吸收率。Muskmelon, soillessly cultured with organic substrate was used to study fertilization effect on yield, nutrient absorption and distribution, and utilization rates of N,P and K. Results indicate an obvious increase in yield and nutrient utilization rate of muskmelon. But nutrient utilization rate decreases once fertilization ratio approaches excessive levels. Muskmelon yield is highest in the second treatment where the amount of applied fertilizer is calculated by using the following equation： Fertilizer amount = （fertilizer for desired output- organic substrate nutrient content）/nutrient uptake ratio.

关 键 词：甜瓜 无土栽培 有机基质 化肥 产量 养分利用率 

分 类 号：S831.5[农业科学—畜牧学]