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不同施肥方式对水稻产量、吸氮特性和土壤氮转化的影响
引用本文:谢秋发,刘经荣,石庆华,李木英.不同施肥方式对水稻产量、吸氮特性和土壤氮转化的影响[J].植物营养与肥料学报,2004,10(5):462-467.
作者姓名:谢秋发  刘经荣  石庆华  李木英
作者单位:1.江西农业大学国土学院 江西 南昌 330045
基金项目:科技部早稻品质改良工程项目
摘    要:采用15N示踪研究了盆栽条件下,不同施肥方式对水稻产量、吸氮特性和土壤氮转化的影响。结果表明,等氮磷钾量条件下,有机无机肥料一次性基施,有利于氮素向稻谷转移,其增产效果高于单施化肥,且具有氮利用率高、损失少、土壤残留多和省时省工等特点,是兼顾高产和地力保持的施肥方法。

关 键 词:早稻    施肥方式    吸氮特性    氮转化
文章编号:1008-505X(2004)05-0462-06
修稿时间:2003年6月17日

Effect of different fertilization patterns on rice yield and nitrogen uptake and transformation in soil
XIE Qiu-fa,LIU Jing-rong,SHI Qing-hua,LI Mu-ying.Effect of different fertilization patterns on rice yield and nitrogen uptake and transformation in soil[J].Plant Nutrition and Fertilizer Science,2004,10(5):462-467.
Authors:XIE Qiu-fa  LIU Jing-rong  SHI Qing-hua  LI Mu-ying
Affiliation:1.Jiangxi Agricultural University;Nanchang 330045;China
Abstract:15N-labelled technique was used to study the effect of different fertilization on yield and nitrogen absorbing character of rice and transformation of soil nitrogen under pot culture condition. Results showed that on equal amount of N, P and K, once bassal dressing of organic and inorganic fertilizer, could promote N trans-location to rice grain and increase the yield. And it had the value of higher nitrogen utilization efficiency, higher nitrogen residual amount, less nitrogen loss and less labor etc, which could maintain both high yield and soil fertility. So it was a recommendable fertilization technique.
Keywords:early rice  fertilization parttern  character of nitrogen uptake  nitrogen transformation
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