有机生态型无土基质对披碱草苗期生长的影响  

Effect of eco-organic soilless matrix on the growth of Elymus dahuricus at the seedling stage

作　　者：岳征文[1] 王红柳[2] 杨浩[1] 王百田[1] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]北京林业大学林学院,北京100083

出　　处：《草业科学》2011年第1期131-134,共4页Pratacultural Science

基　　金：国家科技支撑专题研究资助项目(2006BAD03A0301)

摘　　要：有机生态型无土栽培基质配方的研究是未来无土栽培基质配方研究新的热点。在总结前人基质配方基础上,将草炭、草木灰、枯落物、腐殖质按照一定的体积比进行混合并加入适量聚丙烯酰胺型小颗粒保水剂作为栽培基质来代替土壤,配制出4种有机生态型无土栽培基质。加入基肥后,用披碱草(Elymus dahuricus)作为试验牧草,筛选出最适宜披碱草生长的有机生态型无土绿化栽培基质,也为新型的无土栽培基质配方的研究提供理论依据。披碱草苗期阶段各项结果表明,有机生态型基质在满足理想基质的要求下,营养成分含量越高对植株苗期的生长越有利。披碱草出苗率与基质的物理性质关系密切,而与基质中的养分配比关系不大。绿化基质材料腐殖质、枯树叶、草木灰体积比为6∶2∶2的A3基质是4种基质里面最具有优势的基质配比。The formula of eco-organic soilless matrix for cultivation is the focus of formula of soilless matrix for cultivation in the future. Based on previous studies, the new four formulas were constructed by combining the peat, plant ash, litter, humus and appropriate amount of small particles of poly to a certain volume ratio to substitute for soil cultivation in this study. This study not only screened out the most suitable formula of eco-organic soilless matrix for E. dahuricus growth at its seedling stage by adding basic manure into four eco-organic soilless matrixes, but also provides a basis theory for the formulation. The results of this study showed that the higher nutrient content benefited seedling growth of E. dahuricus when the eco-organic soilless matrix met the requirements of an ideal matrix. The emergence of E. dahuricus was closely related to the physical property of the matrix, but was not related to nutrient composition of the matrix. This study showed that A3 matrix was best eco-organic soilless matrix for cultivation, in which the ratio of humus, litter and plant ash was 6 ： 2 ： 2.

关 键 词：无土栽培基质 披碱草 绿化基质 

分 类 号：S543.9[农业科学—作物学]