松树皮复配基质的理化性质  

Physical and chemical properties of the substrates with pine bark stacked over time

作　　者：李秋艳[1,2] 毕君[2] 武亚敬[2] 张玉珍[1] 

机构地区：[1]河北农业大学,河北保定071001 [2]河北省林业科学研究院,河北省林木良种工程技术研究中心

出　　处：《林业科技开发》2015年第2期28-31,共4页China Forestry Science and Technology

基　　金：国家林业局"948"项目(2012-4-64)

摘　　要：用＜0.5,≥0.5 ～2,≥2～5 mm3种粒径的油松树皮按不同的质量比配成5种基质,以田园土为对照,研究了不同复配基质的理化性质、收缩率和含水量的变化情况,并选出适宜的油松育苗基质.结果表明：油松经过一个生长季后,5种基质的物理性质比较稳定,各项物理指标基本不变或小幅度改变,说明基质物理性质稳定性较好;除pH外,基质化学性质变化幅度较大,但栽培前后5种基质的理化性质均在基质的理想范围之内,说明5种基质适宜做育苗基质.根据基质的含水量、基质收缩率和物理性质主成分分析,基质粒径D≥2～5mm∶D≥0.5～2mm∶D＜0.5mm为1∶3∶1的复配基质为最宜育苗基质.The five kinds of substrate were prepared using barks of Pinus tabulaeformis with diameter particle size 0. 5,≥0. 5 ~ 2,≥2 ~ 5mm by different mass ratio,the physical and chemical properties,shrinkage and water content of the substrates were investigated comparing with the garden soil,and the optimal substrate for seedling raising of the P. tabulaeformis was chosen. The results indicated that： one growing season of P. tabulaeformis latter,the physical properties of the five kinds of substrate were relatively stable,all physical indicators were substantially unchanged or slightly changed,which explained that the physical properties of the substrates possessed the good stability. However,except the p H value,the chemical properties of substrates changed evidently. Nevertheless,before and after cultivation,physical and chemical properties of the five kinds of substrate remained within the ideal range of the substrate,which explained that these five kinds of the substrate were suitable for seedling in nursery. According to the results from principal component analysis by using the physical properties combined with water content,the matrix shrinkage,concluded that the complex substrate with particle size of ≥2 ~ 5mm ∶ ≥0. 5 ~ 2mm ∶ 0. 5mm by 1 ∶ 3 ∶ 1 was optimum for seedling raising of P. tabulaeformis.

关 键 词：粒径 基质 松树皮 收缩率 理化性质 

分 类 号：S714.2[农业科学—林学]