| 两种缓释材料对氮肥利用率的影响 |
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| 引用本文： | 李美清,王曰鑫.两种缓释材料对氮肥利用率的影响[J].腐植酸,2008(3):23-27. |
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| 作者姓名： | 李美清 王曰鑫 |
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| 作者单位： | 1. 山东农业大学,泰安,271018
2. 山西农业大学,太谷,030801 |
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| 摘 要： | 褐煤、糠醛渣为缓释材料，与氮肥配合施用进行谷子盆栽试验，研究了对氮肥利用率的影响。结果表明，褐煤、糠醛渣分别与氮肥配合对氮肥利用效果总体上比单独施用同水平氮肥好；处理T11（褐煤3．00g、碳铵4．05g）谷子氮肥利用率最高（76．81％），相对氮素利用率提高了60．59％；从经济效益分析，氮素的利用率以处理T5（糠醛渣3．00g、尿素1．50g）的收益最优。
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| 关 键 词： | 褐煤 腐植酸 糠醛渣 效应 利用率 氮素 |
Effects of Two Slow-released Materials on Utilization Efficiency of Nitrogen |
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| Authors: | Li Meiqing Wang Yuexin |
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| Affiliation: | Li Meiqing, Wang Yuexin (1 Shangdong Agriculture University, Tai＇an, 271018 ;2 Shangxi Agriculture University, Taigu, 030801) |
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| Abstract: | A pot test of millet was carried out to study the effects of lignite and furfural residue on utilization efficiency of nitrogen(NUE). The results showed that applying lignite and furfural residue with nitrogen could increase NUE of millet compared to the treatment applied nitrogen singly at the same levels. Treatment T11(lignite 3.00g NH4HCO34.05 g) had the highest NUE(76.81%), and its relative NUE is 60.59%. While T5(furfural residue 3.00 g urea 1.50 g) had the highest economic benefit. |
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| Keywords: | lignite humic acid furfural residue effect utilization effi ciency nitrogen |
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