矮化对油樟叶产量与内含物及土壤营养元素的影响

Effects of Dwarfing on Leaf Yield,Leaf contents and Soil Nutrients of Cinnamomum longepaniculatum

对油樟矮化试验林的产叶量及其内含物和土壤营养元素进行了测定,结果表明,不同矮化强度的栽培措施能显著影响单位面积的产叶量(P<0.05),但不会显著影响叶含油率和桉叶油醇含量;油樟矮化栽培时,树干高度应保留在5~8 m,林分密度保留在1290~1425株·hm^−2,其单位面积产叶量均在较高水平;油樟矮化栽培能显著影响土壤中的速效钾、全磷和全钾的含量;在油樟矮化栽培时,应适时适量补充钾肥,以保证土壤养分平衡。

The leaf yield, leaf contents and soil nutrients of Cinnamomum longepaniculatum dwarfing experimental forest were determined. The results showed that different dwarfing intensities could significantly affect the leaf yield per unit area(P<0.05), but could not significantly affected the leaf oil content and eudesmol content. In the dwarfing cultivation of Cinnamomum longepaniculatum, the trunk height should be kept at 5-8 m, the stand density should be kept at 1 290-1 425 plants per hectare, and the leaf yield per unit area should be at a high level. The contents of available potassium, total phosphorus and total potassium in the soil were significantly affected by dwarfing cultivation of Cinnamomum longepaniculatum,. During dwarfing cultivation of Cinnamomum longepaniculatum, potassium fertilizer should be added timely and appropriately to ensure the balance of soil nutrients.