菌肥对赤松苗木生长的影响研究

研究施用林木菌肥对赤松幼苗生长的影响,结果表明,试验用林木菌肥能很好地侵染到赤松幼苗根部,幼苗菌根感染率为87.62%,菌肥还能明显促进赤松幼苗的苗高增加31.49%,地径增加16.98%,松针长度和侧根数量较不施菌肥对照分别增加了31.80%和34.84%;赤松幼苗N、P、K含量分别增加了33.88%、36.08%和17.98%;施用菌肥后,赤松幼苗叶绿素总量、叶绿素a及叶绿素b、类胡萝卜素含量和叶绿素a/叶绿素b,均明显高于不施菌肥对照;施肥后较对照SOD活性下降。

Study on Effect of Microbial Fertilizer on Growth of Pinus tabulaeformis Seedlings

The effects of microbial fertilizers on the growth of Pinus tabulaeformis were studied. The results showed that the infection rate of seedlings was 87.62%,and compared to CK of no microbial fertilizer,the seedlings treated with microbial fertilizers had increment of 31.49%,16.98%,31.80% and 34.84% on height,basal diameter,pine needles length and number of lateral roots respectively. The N,P,K contents in the seedlings increased 33.88%,36.08% and 17.98% respectively. The contents of the total chlorophyll,Chla,Chlb,carotenoid and the ratios of Chla/Chlb of the seedling leaves treated with microbial fertilizers increased. SOD activities of pine seedlings were lower than CK.