袋控缓释肥对桉树和杉木人工林生长及土壤理化性质的影响  

Effects of Application of Bag-Controlled Slow-Release Fertilizer on Growth and Soil Nutrients of Eucalyptus and Chinese Fir Plantation

作　　者：罗蜜 黄昌谋 韩华 黄敏球 宁剑 潘波[1] 曹继钊[1] LUO Mi;HUANG Changmou;HAN Hua;HUANG Minqiu;NING Jian;PAN Bo;CAO Jizhao(Guangxi Forestry Research Institute,Nanning 530028,China;College of Forestry,Beijing Forestry University,Beijing,100083,China;Guangxi Autonomous Region Gaofeng State-owned Forest Farm,Nanning 530001,China;Linduo Forest Farm,Tian′e,Guangxi 547300,China)

机构地区：[1]广西壮族自治区林业科学研究院,南宁530002 [2]北京林业大学林学院,北京100083 [3]广西壮族自治区国有高峰林场,南宁530001 [4]天峨县林朵林场,广西天峨530001

出　　处：《林业资源管理》2021年第5期104-111,共8页Forest Resources Management

基　　金：广西主要用材林高产高效精准施肥及地力维持关键技术研究与示范(桂科AA17204087-11);广西主要用材林减肥增效沃土保育关键技术推广与示范(gl2017kt15);广西林学与生物学院士工作站能力建设(桂科AD17129051)。

摘　　要：为探究袋控缓释肥和不同施肥量的生物肥对桉树和杉木人工林生长的影响及土壤理化性质的变化规律,试验设置常规施肥(G1)、袋控缓释肥(G2)、生物肥(G3-1,G3-2,G3-3)和不施肥(CK)6种施肥处理,测定林木生长指标及土壤理化性质。结果表明:1)在施肥16个月后,G2处理的桉树的树高、胸径和单株立木材积增长率比G1处理分别提高了2.97%,5.14%和1.89%,杉木分别提高了-2.33%,0.82%和15.79%。2)对桉树材积生长量的影响效果依次为G3-3>G3-2>G2>G1>G3-1>CK,对杉木材积的为G3-3>G2>G3-2>G1>G3-1>CK。3)施肥处理均提高了土壤中有机质、全氮、全磷、全钾、碱解氮的含量,降低了土壤的pH值。总体而言:5种施肥方式均能促进林木生长,改善土壤环境;G2的效果优于G1和G3-1,低于G3-3,说明施用袋控缓释肥不仅可以促进林木生长、利于土壤稳定,还能减少化肥的施用量。This study aimed to explore the effect of bag-controlled slow-release fertilizer on forest growth and soil nutrient improvement in eucalyptus and Chinese fir plantations.We measured forest growth index and soil physical and chemical properties under six fertilization treatments:conventional fertilization(G1),bag controlled slow-release fertilizer(G2),biological fertilizer(G3-1,G3-2,G3-3)and no fertilizer(CK).The results showed that:1)Compared with G1,the tree height,DBH and volume of individual tree of eucalyptus were increased by 2.97%,5.14%and 1.89%,respectively,and those of Chinese fir were increased by-2.33%,0.82%and 15.79%,respectively after 16 months of fertilization.2)The effect on eucalyptus volume was as follows:G3-3>G3-2>G2>G1>G3-1>CK and the Chinese fir volume was G3-3>G2>G3-2>G1>G3-1>CK.3)The contents of organic matter,total nitrogen,total phosphorus,total potassium and nitrogen in the soil were increased,and the pH of the soil was decreased.In general,the application of G1,G2,and G3-1,G3-2,G3-3 can promote the growth of trees and improve the soil environment among which G2 is outperform G3-1 and G1,but worse than G3-3 indicating that the application of bag-controlled slow-release fertilizer could not only promote the growth of trees,but also facilitate soil stability and reduce the use of chemical fertilizer.

关 键 词：袋控缓释肥 生物肥 土壤养分 桉树 杉木 

分 类 号：S147.2[农业科学—肥料学] S714[农业科学—农业基础科学]