油茶配方肥中氮素养分释放特性研究  

Releasing characteristics of N element in Camellia oleifera compound fertilizer

作　　者：潘波[1,2,3,4,5] 袁德义[3,4,5] 唐健[1,2] 曹继钊[1,2] 覃祚玉[1,2] 覃宗艳 石媛媛[1,2] 农必昌[1,2] 

机构地区：[1]广西壮族自治区林业科学研究院国家林业局中南速生材繁育实验室,广西南宁530002 [2]广西壮族自治区林业科学研究院广西优良用材林资源培育重点实验室,广西南宁530002 [3]中南林业科技大学经济林培育与保护省部共建教育部重点实验室,湖南长沙410004 [4]中南林业科技大学经济林育种与栽培国家林业局重点实验室,湖南长沙410004 [5]中南林业科技大学经济林培育与利用湖南省2011协同创新中心,湖南长沙410004

出　　处：《经济林研究》2014年第2期66-71,共6页Non-wood Forest Research

基　　金："十一五"广西林业科技项目(桂林科字〔2010〕第2号)

摘　　要：为了寻找提高肥料利用率和减少肥料流失率的有效途径,以油茶配方肥、掺混肥和尿素这3种肥料为试验材料,对幼龄油茶进行了盆栽埋袋释放试验,并测定了氮素的累积释放率和总养分损失率。结果表明:简单添加有机质和辅助物料,并不能起到减缓氮素养分释放速率的作用,而经过成粒工艺处理,可在一定程度上减少氮素养分的释放速率,从而减少氮素养分的流失率;在肥料埋袋处理的28天时间里,油茶配方肥中的氮素流失率比掺混肥和尿素分别减少20.45%和20.62%。In order to ifnd an effective way to improving utilization rate of fertilizer and reducing loss rate of fertilizer, taking Camellia oleifera compound fertilizer, mixed fertilizer and urea as materials, young seedlings in C. oleifera were tested through a potted release test through burying bag, and accumulative releasing rate and total loss rate of N element were determined. The results show that the method of simply adding organic matter and auxiliary can’t reduce release rate of N element, but release rate and loss rate of N element are decreased in some degree through a granulation process. Compared with mixed fertilizer and urea, loss rate of N element in C. oleifera compound fertilizer is decreased by 20.45%and 20.62%respectively, in the treatment for 28 days.

关 键 词：油茶 油茶配方肥 氮素 释放特性 盆栽埋袋释放试验 

分 类 号：S606.2[农业科学—园艺学] S794.4