油茶饼粕有机肥对马占相思和窿缘桉幼苗生长的影响

以已脱茶皂素的油茶饼粕有机肥为原料,比较不同添加比例的油茶饼粕有机肥对马占相思(Acacia mangium)和窿缘桉(Eucalyptus exserta)幼苗成活率及生长影响。结果表明,20%发酵油茶饼粕有机肥处理70 d时,马占相思幼苗的成活率为87.8%,窿缘桉幼苗的成活率为95.6%;油茶饼粕有机肥含量在10%～30%时,马占相思幼苗高均比对照组低。油茶饼粕有机肥在10%和20%含量时均显示对窿缘桉幼苗的生长有促进作用,当含量在30%时显示不利于窿缘桉幼苗生长。建议在使用油茶饼粕有机肥育马占相思幼苗时,其油茶饼粕有机肥的含量应控制在20%以下,而对于窿缘桉幼苗则应将油茶饼粕有机肥含量控制在30%以下。

Oil-tea Cake Organic Fertilizer on Growth of Acacia mangium and Eucalyptus exserta Seedlings

The oil-tea cake was used as raw material to compare the effects of different proportions of oil-tea cake on the survival rate and growth of Acacia mangium and Eucalyptus exserta seedling. The results showed that: At 70 d, The survival rate of A. mangium seedling was 87.8%, and the E. exserta seedling was 95.6% when the content of the oil-tea cake was 20%; The average height of A. mangium seedling were lower than that of the control group when the contents of oil-tea cake between 10%—30%. When fermented oil-tea cake was 10% and 20%, it promoted the growth of E. exserta seedlings, but when the content was 30%, it showed that growth of E. exserta was inhibited. The results showed that the content of fermented oil-tea cake should be controlled below 20% when used on A. mangium seedling, while for E. exserta, it should be controlled below 30%.