马尾松袋控缓释肥中氮素的释放特性研究  

Study on Nitrogen Release Characteristics of Bag-controlled Slow-release Fertilizer of Pinus massoniana

作　　者：潘波[1] 蒋华 罗蜜 梁乃鹏 曹继钊[1] 唐健[1] 邓小军[1] Pan Bo;Jiang Hua;Luo Mi;Liang Naipeng;Cao Jizhao;Tang Jian;Deng Xiaojun(Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China;Xianshui Forest Farm of Quanzhou County,Quanzhou,Guangxi 541511,China;Beijing Forestry University,Beijing 100083,China;Guangxi State-owned Weidu Forest Farm,Laibin,Guangxi 546100,China)

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002 [2]全州县咸水林场,广西全州541511 [3]北京林业大学,北京100083 [4]广西壮族自治区国有维都林场,广西来宾546100

出　　处：《广西林业科学》2020年第4期599-603,共5页Guangxi Forestry Science

基　　金：广西林业科技推广示范项目(gl2017kt15);广西主要用材林高效培育与利用项目课题(桂科AA17204087-11);广西科技计划项目(桂科AD17129051)。

摘　　要：为了寻找提高肥料利用率的有效途径,以3种不同马尾松袋控缓释肥(F1、F2和F3)和马尾松专用肥料(F4)为试验材料,开展幼龄期马尾松的盆栽埋袋释放试验,分析4种肥料的氮素累积释放率和总养分损失率。结果表明,马尾松袋控缓释肥能较大地减少氮素释放速率和流失率,提高氮素利用率;在埋袋处理的前47天,F1、F2和F3的氮素流失率比F4处理分别减少了66.39%、72.72%和67.42%,总养分的流失率分别减少了37.18%、35.63%和37.53%。In order to find effective way to improve fertilizer efficiency,three different bag-controlled slow-release fertilizers and special fertilizer of Pinus massoniana were used as experimental materials.Pot experiments were carried out to analyze accumulative nitrogen release rate and total nutrient loss rate of four fertilizers in young P.massoniana forest.Results showed that bag-controlled slow-release fertilizer could greatly reduce nitrogen release rate and loss rate of nutrients,so as to improve the utilization rate of nitrogen.Nitrogen loss rates of F1,F2 and F3 fertilizers were 66.39%,72.72%and 67.42%less than that of F4 for early 47 days,and the loss rate of total nutrient decreased by 37.18%,35.63%and 37.53%.

关 键 词：袋控缓释肥 马尾松 氮素 

分 类 号：S791.248[农业科学—林木遗传育种]