| 长效肥料ENTEC对野生刺苋驯化栽培的影响 |
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| 引用本文： | 李蕾,符小琴,韦带莲,杨超.长效肥料ENTEC对野生刺苋驯化栽培的影响[J].植物资源与环境学报,2004,13(2):10-13. |
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| 作者姓名： | 李蕾 符小琴 韦带莲 杨超 |
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| 作者单位： | 海南师范学院生物系,海南,海口,571158 |
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| 摘 要： | 探讨了含有硝化抑制剂DMPP(3,4-二甲基吡唑磷酸盐)的长效肥料ENTEC对剌苋(Amaranthus spinosus L.)干物质积累及其氮素利用的影响. 结果表明: 与尿素处理相比,ENTEC对提高剌苋干物质积累作用不明显,其最大生长速率出现时间较晚; 施用ENTEC,土壤含氮量较高,且下降速度较慢,说明其具有较强的防止氮素流失的作用.同时,ENTEC有利于提高氮素的利用率,ENTEC处理的植株氮素利用率比尿素处理提高了41.56%.另外,ENTEC能促进剌苋对磷、钾素的吸收.
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| 关 键 词： | 剌苋 长效肥料 硝化抑制剂 生长效应 氮素利用 |
| 文章编号： | 1004-0978(2004)02-0010-04 |
| 修稿时间： | 2003年9月1日 |
Effects of long-acting fertilizer ENTEC on the culture of Amaranthus spinosus L. |
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| LI Lei,FU Xiao-qin,WEI Dai-lian,YANG Chao.Effects of long-acting fertilizer ENTEC on the culture of Amaranthus spinosus L.[J].Journal of Plant Resources and Environment,2004,13(2):10-13. |
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| Authors: | LI Lei FU Xiao-qin WEI Dai-lian YANG Chao |
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| Abstract: | Effects of a long-acting fertilizer ENTEC that contains 3,4-dimethylpyrazole phosphate (DMPP, a new nitrification inhibitor) on the growth and nitrogen utilization of Amaranthus spinosus L. were studied. The results show that ENTEC plays lesser role on the dry-matter accumulation than urea. The time of maximum growth rate of A. spinosus treated with ENTEC appears later than urea and CK. The N content of soil treated with ENTEC is high, and its decreased rate is slow. ENTEC can enhance the N recovery, the nitrogen utilization of A. spinosus fertilized with ENTEC is higher 41.56% than urea. Otherwise, ENTEC can promote the absorption to P and K of A. spinosus. |
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| Keywords: | Amaranthus spinosus L long-acting fertilizer nitrification inhibitor growth nitrogen utilization |
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