CAJ | 학술논문

采用Pt菌剂、ABT生根粉、HRC吸水剂、丰产素等生物制剂处理2年生樟子松苗木,在内蒙古加格达齐进行了田间造林试验.并对樟子松造林成活及地下根系生长效应进行了研究,观测苗木成活率、根系生长等因子.结果表明:Pt菌剂3号ABT生根粉制剂显著地提高了樟子松成活率,它分别比对照高29.3%和23.6%,也促进了根系的生长,特别是细根的增加.回归分析表明苗木细根长度与苗木成活率呈显著正相关,说明生物制剂提高成活率是通过增加细根量来实现的.表3参10.
채용Pt균제、ABT생근분、HRC흡수제、봉산소등생물제제처리2년생장자송묘목,재내몽고가격체제진행료전간조림시험.병대장자송조림성활급지하근계생장효응진행료연구,관측묘목성활솔、근계생장등인자.결과표명:Pt균제3호ABT생근분제제현저지제고료장자송성활솔,타분별비대조고29.3%화23.6%,야촉진료근계적생장,특별시세근적증가.회귀분석표명묘목세근장도여묘목성활솔정현저정상관,설명생물제제제고성활솔시통과증가세근량래실현적.표3삼10.
Two-year-old Scots pine(Pinus sylvstris var.mongolica)seedlings were treated with Pt mycorrhiza powder,ABT root-growing powder,HRC water-absorbing agent and high-yield powder,and planted on the sandy land in Balinyouqi,Inner Mongolia(180(12′13″E and 43(13′05″N).The effect and function of these biological agents on survival rate of seedlings were tested and analyzed by measuring the fine root growth and gross root growth.The results showed that the survival rates of the seedlings treated with Pt3,ABT,and HRC biological agents increased by 29.3%,23.6%,and 16%,respectively.The regression analysis revealed that the length of fine roots(<2 mm)was positively correlated with seedling survival rate,which means that the Pt3 powder,ABT foot-growing powder and HRC water-absorbing powder increased the survival rates of the seedlings by promoting the growth of fine roots.