| 吉林黑土上化肥对玉米的增产效应及其利用率研究 |
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| 引用本文： | 张效朴,詹其厚,李伟波.吉林黑土上化肥对玉米的增产效应及其利用率研究[J].农业现代化研究,2000,21(1):19-23. |
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| 作者姓名： | 张效朴 詹其厚 李伟波 |
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| 作者单位： | 中国科学院南京土壤研究所,江苏南京,210008 |
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| 基金项目： | 国家“九五”科技攻关重中之重项目!（95—001—03） |
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| 摘 要： | 通过１９９６年和１９９８年两年田间试验，研究了吉林黑土上化肥对玉米的增产效应及肥料利用率，结果表明：Ｎ肥是主导的增产因素，其最佳产量和最佳量分别为１２７３８．６ｋｇ／ｈｍ＾２和２９１．６ｋｇ／ｈｍ＾２，及１１５４２．７ｋｇ／ｈｍ＾２和２７７．８ｋｇ／ｈｍ＾２，不同Ｎ肥用量下肥料利用率分别变化在３２．３％～６４．３％及３５．５％～６２．２％之间。根据最佳产量找出“最佳”利用率分别在４９％和５１％左右
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| 关 键 词： | 黑土 玉米 氮肥效应 肥料利用率 化肥 |
Study on Increasing Production Effect of Fertilizer on Maize and Its Utilization Efficiency in Black Soil of Jilin |
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| ZHANG Xiao-pu,ZHAN Qi-hou,LI Wei-bo.Study on Increasing Production Effect of Fertilizer on Maize and Its Utilization Efficiency in Black Soil of Jilin[J].Research of Agricultural Modernization,2000,21(1):19-23. |
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| Authors: | ZHANG Xiao-pu ZHAN Qi-hou LI Wei-bo |
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| Abstract: | By way of field experiment in 1996 and 1998, studied on increasing production effect of fertilizer on maize and its utilization efficiency in black soil of Jilin. Obtained a result:N is the leading factor of increase production. Its optimum yield and N optimum applying amount is 12738.6kg/hm 2,291.6kg N/hm 2,and 11542.7kg/hm 2,277.8kg N/hm 2 respectively. The changeable range of its utilization efficiency of the different applying amount is 32.3d.3% and 35.5b.2%. On the base of the optimum yield, reaching a conclusion of the N optimum utilization efficiency is 49% and 51%. |
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| Keywords: | black soil maize N fertilizer effect fertilizer utilization efficiency |
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