摘要
对比研究了进口基质与东北草炭,东北草炭与蛭石、珍珠岩配成的混合基质以及东北草炭与保水剂混合后在40℃恒温下的水分运动特性。结果表明:进口基质的保水性明显优于东北草炭;在东北草炭中加入20%的蛭石时,东北草炭的保水性能达到了与进口基质相类似的水平;而且在东北草炭中加入5 g.kg-1保水剂也能达到与进口基质相类似的水分散失曲线,从而为穴盘育苗基质的国产化和标准化生产奠定了基础。
Water vapor characteristics at 40℃ constant temperature in Dongbei peat-moss and imported substrate, and Dongbei peat-moss mixed with vermiculite or perlitc or absorbent polymer were compared in this study. The results showed that： water-keeping capacity of imported substrate was better than Dongbei peat-moss; and when added 20% vermiculite in Dongbei peat-moss, the water vapor characteristics of substrate could reach that in the imported substrate; and when Dongbei peat-moss mixed with 5 g · kg^-1 absorbent polymer, the water vapor characteristics of substrate were also very similar to that of the imported peat. Therefore, it lay a foundation for the standardization and homemading of substrate for plug production.
出处
《山西农业大学学报（自然科学版）》
CAS
2006年第2期162-164,共3页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
北京市科委重大项目(Z010610240113)
关键词
东北草炭
蛭石
珍珠岩
保水剂
水分散失
Dongbei peat-moss
Vermiculite
Perlite
Absorbent polymer
Water vapor
