Position: Home > Articles > Nitrogen Nutrient Release Characteristics of Slow-release Fertilizer in Bag-type Cunninghamia lanceolata
Forest Inventory and Planning
2018
(6)
15-20
袋包型杉木缓释肥料中氮素养分释放特性研究
作 者：
潘波;曹继钊;蔡榕树;覃其云;王会利;石媛媛;陆海平
单 位：
广西林业科学研究院;广西大学
关键词：
袋包型;杉木;缓释肥料;氮素养分;释放特性;盆栽试验;释放率;总养分损失率;预测模型
摘 要：
为了解袋包型缓释肥料中氮素养分释放特性,以3种不同袋包型杉木缓释肥料为试验材料,开展幼龄期杉木盆栽埋袋释放试验,对氮素的累积释放率和总养分损失率进行分析。结果表明,袋包型杉木缓释肥料能大大减缓氮素养分的释放速率,从而提高氮素养分利用率,减少氮素养分的流失率;在埋袋处理的47 d时间里,袋包型杉木缓释肥料中的氮素流失率比普通杉木专用肥料分别减少64. 36%、57. 78%和72. 07%,总养分流失率分别减少37. 90%、38. 63%和40. 38%。以物理测定的总质量损失率作为自变量(X),以化学法测定的氮素累积释放率作为因变量,建立了F1、F2、F3和普通杉木专用肥中氮素的释放率及释放特征预测模型。
译 名：
Nitrogen Nutrient Release Characteristics of Slow-release Fertilizer in Bag-type Cunninghamia lanceolata
作 者：
PAN Bo;CAO Jizhao;CAI Rongshu;QIN Qiyun;WANG Huili;SHI Yuanyuan;LU Haiping;Guangxi Forestry Research Institute;Guangxi University;
单 位：
PAN Bo%CAO Jizhao%CAI Rongshu%QIN Qiyun%WANG Huili%SHI Yuanyuan%LU Haiping%Guangxi Forestry Research Institute%Guangxi University
关键词：
bag type;;Cunninghamia lanceolata;;slow-release fertilizer;;nitrogen nutrient;;release characteristics;;pot experiment;;release rate;;total nutrient loss rate;;prediction model
摘 要：
In order to understand the nitrogen nutrient release characteristics of the slow-release fertilizer in bag-type Cunninghamia lanceolata,the burying bag release experiment of young Cunninghamia lanceolata was carried out with 3 different bag-type fertilizers to analyze the cumulative release rate and the total nutrient loss rate of nitrogen. The results showed that the rate of nitrogen nutrient release could be greatly reduced by the slow-release fertilizer of C. lanceolata,which could increase the nitrogen nutrient utilization and reduce the nitrogen nutrient loss. And during the 47 days of burying bag treatment,the nitrogen loss and the total nutrient loss rates of slow-release fertilizer in bag-type C. lanceolata were decreased by 64. 36%,57. 78%,72. 07% and 37. 90%,38. 63%,40. 38% compared with the common C. lanceolata fertilizer,respectively. The prediction model of nitrogen nutrient release characteristics and release rate for F1,F2,F3 and common C. lanceolata was set up with the total mass loss rate by physical measurement as the independent variable( X),and the nitrogen accumulated release rate by chemical measurement as the dependent variable.
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