“有机+无机”追肥对营建高产桉树人工林的影响研究  

Effects of "Organic+Inorganic" Topdressing on the Construction of High-Yield Eucalyptus Plantation

作　　者：杨卫星 Yang Weixing(Guangxi State-Owned Dongmen Forest Farm,Chongzuo,Guangxi 532100,China)

机构地区：[1]广西国有东门林场,广西崇左532100

出　　处：《绿色科技》2022年第23期199-202,共4页Journal of Green Science and Technology

摘　　要：采用氮磷钾复混肥(N、P_(2)O_(5)、K_(2)O总有效养份≥30%十微量元素)、氮磷钾复混肥(N、P_(2)O_(5)、K_(2)O总有效养份≥30%)、有机-无机复混肥(含有机质20%,含N、P_(2)O_(5)、K_(2)O总有效养份≥20%)3种复混肥不同含量进行单独或轮流施用取得了较好的效果。在采用3种复混肥轮流施用后,林龄84月单株蓄积量可达0.2086 m^(3)以上,按每亩林木保存量90株计算,蓄积量可达18.774 m^(3)以上。采用有机-无机复混肥(含有机质20%,含N、P_(2)O_(5)、K_(2)O总有效养份≥20%)不同含量连年追肥后对树木生长及改善土壤肥力均有较大的益处,林龄84月单株蓄积量可达0.2225 m^(3)以上,按每亩林木保存量90株计算,蓄积量可达20.025 m^(3)以上,可达到“百元树、万元林”的培育目标。In the experiment, N, Pand K compound fertilizer(N,P_(2)O_(5) and K_(2)O total effective nutrients ≥ 30%+ microelements), N, Pand K compound fertilizer(N,P_(2)O_(5) and K_(2)O total effective nutrients ≥ 30%) and organic-inorganic compound fertilizer(containing 20% organic matter, N,P_(2)O_(5) and K_(2)O total effective nutrients ≥ 20%) with different contents were applied separately or in turn, achieving good results. After three kinds of compound fertilizers were applied in turn, the volume was over 0.2086 m^(3) of one plant at the age of 84 months. The volume was over 18.774 m^(3)/mu based on 90 trees. Application of organic-inorganic compound fertilizer(containing 20% organic matter, N,P_(2)O_(5) and K_(2)O total effective nutrients ≥ 20%) with different contents for successive years has great benefits for tree growth and soil fertility improvement. The stock volume per plant of 84 months can reach more than 0.2225 m^(3), and the stock volume can reach more than 20.025 m^(3) based on the stock of 90 plants per mu of forest, which can reach the cultivation goal of "100 yuan tree and 10,000 yuan forest".

关 键 词：“有机+无机”追肥 营建 桉树人工林 影响研究 

分 类 号：S722.37[农业科学—林木遗传育种]