一次基施水稻控释肥技术的养分利用率及增产效果

应用生态学报 ›› 2005, Vol. 16 ›› Issue (10): 1868-1871.

一次基施水稻控释肥技术的养分利用率及增产效果

陈建生, 徐培智, 唐拴虎, 张发宝, 谢春生

广东省农业科学院土壤肥料研究所, 广州 510640

收稿日期:2004-11-16 修回日期:2005-03-31 出版日期:2005-10-15 发布日期:2005-10-15
通讯作者: 陈建生,男,1954年生,研究员.主要从事土壤与肥料科学研究,发表论文30多篇.E-mail:tafxxfl@pub.guangzhou.gd.cn
基金资助:
国家科技部农业科技成果转化基金项目(02EFN₂14400485)和广东省重大科技专项资助项目(2001A20405).

Nutrient use efficiency and yield-increasing effect of single basal application of rice-specific controlled release fertilizer

CHEN Jiansheng, XU Peizhi, TANG Shuanhu, ZHANG Fabao, XIE Chunsheng

Soil and Fertilizer Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China

Received:2004-11-16 Revised:2005-03-31 Online:2005-10-15 Published:2005-10-15

摘要/Abstract

摘要： 通过盆栽试验、田间小区试验和生产大面积应用示范研究了一次基施水稻控释肥的养分利用率及其增产效果.结果表明,一次基施水稻控释肥技术与等养分量的专用肥处理比较,盆栽试验相对提高氮素利用率12.2%～22.7%,磷素利用率7.0%～35.0%;小区试验相对提高氮素利用率17.1%.综合广东不同水稻生态类型稻作区连续3年共167点(次)应用示范结果,表明一次基施水稻控释肥技术较常规分次施肥平均减少氮和磷养分用量分别为22.11%和21.81%,降低了施肥成本,获得8.2%的增产效果.

关键词: 控释肥, 养分利用率, 水稻, 一次性基施肥

Abstract: A series of pot and field experiments and field demonstrations showed that in comparing with the commonly used specific-fertilizers containing same amounts of nutrients,single basal application of rice-specific controlled release fertilizer could increase the use efficiency of N and P by 12.2%～22.7% and 7.0%～35.0%,respectively in pot experiment,and the use efficiency of N by 17.1% in field experiment.In 167 field demonstrations successively conducted for 3 years in various rice production areas of Guangdong Province,single basal application of the fertilizer saved the application rate of N and P by 22.1% and 21.8%,respectively,and increased the yield by 8.2%,compared with normal split fertilization.

Key words: Controlled release fertilizer, Nutrient use efficiency, Rice, Single basal application

中图分类号:

S158.3

陈建生, 徐培智, 唐拴虎, 张发宝, 谢春生. 一次基施水稻控释肥技术的养分利用率及增产效果[J]. 应用生态学报, 2005, 16(10): 1868-1871.

CHEN Jiansheng, XU Peizhi, TANG Shuanhu, ZHANG Fabao, XIE Chunsheng . Nutrient use efficiency and yield-increasing effect of single basal application of rice-specific controlled release fertilizer[J]. Chinese Journal of Applied Ecology, 2005, 16(10): 1868-1871.

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