干旱地区农业研究Issue(5)：137-142,250,7.
番茄育苗基质理化特性及其对幼苗生长影响研究
Study on physical and chemical characteristics of compound substrate and effects on the growth of tomato seedling
摘要
Abstract
Spent mushroom compost,cow dung and perlite were composed to five kinds of compound substrate,tak-ing internationally best formula substrate (peat∶perlite=2∶1)as CK and tomato cv .Xinong No .201 1 as the test plant, the physical and chemical characteristics of compound substrate and growth of tomato seedling were investigated and the physical and chemical characteristics of substrate and seedling index of tomato was carried out path analysis and multiple regression analysis,moreover,we optimized the formula that was preliminary screened by test .This study indicated that the morphological trait,dry matter,root-shoot ratio and seedling index of optimizing formulating(spent mush∶cow dung∶perlite=3∶3∶4)are significantly higher than CK and preliminary optimum formula;the main factors of affecting the seedling index of tomato seedling were bulk density,total porosity,aeration porosity and water holding capacity,the di-rect path coefficient of aeration porosity on tomato seedling is 2 .2992,and influence of other factors on seedling index was negative .Incresing aeration porosity of compound substrate and decreasing bulk density,total porosity and water holding capacity are benefit the breeding of healthy tomato seedling .In order to produce good seedlings we can increase the dosage of cow dung and decrease the dosage of mushroom compost in this study .关键词
菇渣/理化性状/育苗基质/通径分析Key words
spent mushroom compost/physical and chemical characteristics/seedling substrate/path analysis分类
农业科技引用本文复制引用
王鹏勃,李建明,丁娟娟,刘国英,杜清洁,潘铜华,常毅博..番茄育苗基质理化特性及其对幼苗生长影响研究[J].干旱地区农业研究,2014,(5):137-142,250,7.基金项目
国家“863”计划项目（2011AA100504）；国家“十二五”科技支撑计划项目（2011BAD29B01）；西安市科技计划项目 （）
