| 化肥与有机肥及两者配施长期定位试验 |
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| 引用本文： | 陈式谷,张辛未.化肥与有机肥及两者配施长期定位试验[J].安徽农业科学,1995,23(2):161-163,181. |
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| 作者姓名： | 陈式谷 张辛未 |
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| 作者单位： | 安徽省农科院土壤肥料研究所，六安地区农科所 |
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| 摘 要： | 本文研究了长期施肥对作物产量、肥料效应和土壤肥力的变化。结果表明：土壤的地力贡献具有持久性的特点，肥料对产量的贡献率为４２．７％。不同施肥组合产量总趋势是：ＭＮＰＫ、ＮＰＫ＞ＭＮＰ、ＮＰ＞ＭＮ、Ｍ＞Ｎ＞ＣＫ。说明有机肥与氮磷钾化肥配施产量最高，氮磷钾化肥配施也能获得高产稳产，提高土壤肥力。在等氮量条件下，有机肥的增产作用主要是携入磷钾养分所致。氮肥单施肥料效应逐年下降，与磷钾肥配合施用时磷钾肥效应则呈上升趋势。化肥与有机肥配施，随着配合的完全程度增加，肥料效应也依次上升。氮肥利用率化肥大于有机肥，钾肥则相反，磷肥两者基本相同。从养分投入、产出平衡及土壤肥力变化，可为施肥结构调整提供科学依据。
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| 关 键 词： | 长期定位试验，化肥，有机肥，肥料效应，肥料利用率 |
Location of chemical fertilizers and organic manures |
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| Chen Shigu,Zhang Xinwei et al..Location of chemical fertilizers and organic manures[J].Journal of Anhui Agricultural Sciences,1995,23(2):161-163,181. |
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| Authors: | Chen Shigu Zhang Xinwei |
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| Abstract: | The main objective of conducting these experiments is to monitor the changes of crop yield and soil fertility with successive use of chemical fertilizer and organic manures alone, or in their combination. Ten-year experimental results indicated that fertilization system greatly affected rice and wheat yield. The general trend was MNPK > NPK > MNP > NP >MN>M>N>ck. The importance of the integrated management of organic manure and chemical fertilizer in agriculture was emphasized for maintaining nutrients balance and increasing of yield and fertility. |
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| Keywords: | Location experiment Chemical fertilizer Organic manure Soil fertility Crop |
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