广东省60年水稻肥料利用率综述  

Review on fertilizer use efficiency of Guangdong over the past sixty year

作　　者：董稳军[1,2] 黄旭[2] 郑华平[1,3] 徐培智[1,2] 张仁陟[1] 

机构地区：[1]甘肃农业大学资源与环境学院,甘肃兰州730070 [2]广东省农科院土壤肥料研究所,广东广州510640 [3]甘肃省科学技术厅,甘肃兰州730030

出　　处：《广东农业科学》2012年第7期76-79,共4页Guangdong Agricultural Sciences

摘　　要：通过系统整理分析60年来广东省在水稻肥料利用率上的研究文献,结果表明,广东省氮、磷、钾肥利用率的均值分别为32.56%、23.17%和44.46%,随着施肥量的增加,氮、磷、钾的肥料利用率呈下降趋势。其中氮肥和磷肥利用率在1949—1980年、1980—2000年和2000—2010年3个阶段均呈"高—低—高"趋势变化,但钾肥利用率1980—2000年间为47.69%,高于2000—2010年的39.98%。不同施肥技术下氮肥利用率差异较大,控释肥技术为47.20%,配方施肥技术为36.65%,常规施肥技术为26.18%,从产量和肥料利用率层面来考虑,控释肥技术是目前最优的施肥技术。The results of fertilizer use efficiency during the past 60 years were systematically settled and analyzed.The results showed that： in Guangdong Province,the averages fertilizer utilization of nitrogen（N）,phosphorus（P） and potassium（K） were 32.56%,23.17% and 44.46%,respectively.The fertilizer utilization about nitrogen（N）,phosphorus（P） and potassium（K） was respectively decreased with the increase of the amount of fertilizer application.The utilization of N and P fertilizer showed a tendency of high-low-high in three stages from 1949 to 1980,1980 to 2000,and 2000 to 2010 years.However,the utilization of K fertilizer from 1980 to 2000（47.69%） was higher than that from 2000 to 2010（39.98%）.In addition,the nitrogen use efficiency（NUE） of different fertilization technologies was different.The NUE of controlled release fertilizer technology,soil testing and formulated fertilization and conventional fertilization were 47.20%,36.65% and 26.18%,respectively.Taking yield and fertilizer use efficiency into account,controlled release fertilizer technology is the optimal technology at present.

关 键 词：肥料利用率 施肥 广东省 水稻 

分 类 号：S511.062[农业科学—作物学]