| 韩晓增,王凤仙,王凤菊,邹文秀.长期施用有机肥对黑土肥力及作物产量的影响[J].干旱地区农业研究,2010,28(1):66~71 |
| 长期施用有机肥对黑土肥力及作物产量的影响 |
| Effects of long-term organic manure application on crop yield and fertility of black soil |
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| DOI：10.7606/j.issn.1000-7601.2010.01.13 |
| 中文关键词: 黑土 有机肥 土壤肥力 作物产量 |
| 英文关键词:black soil organic manure soil fertility crop yield |
| 基金项目:中国科学院知识创新工程（KSCX1-YW-09-09，KZCX3-SW-NA3-27）；国家科技支撑计划项目（2006BAD05B05） |
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| 中文摘要: |
| 在东北黑土区中部进行长期定位试验，研究了长期施用有机肥对黑土肥力以及作物产量的影响。结果表明：施用有机肥能够提高土壤肥力，与供试前土壤相比，施用有机肥处理的土壤有机质、全氮、全磷、碱解氮、速效磷和速效钾含量都表现为增加，长期施用氮磷钾化肥处理的有机质、全氮、碱解氮、全磷和速效磷表现为增加，而全钾、速效钾则减少，长期无肥处理的土壤除全氮和全磷表现为增加以外，均呈减小的趋势；各处理土壤C/N均表现为减小，在11.32～12.01之间波动；长期施用有机肥能使土壤的pH稳定在一个适合作物生长的范围内；施用有机肥可以增加土壤＞0.25 mm水稳性团聚体的数量，不同处理>0.25 mm水稳性团聚体的含量表现为：化肥+高量有机肥（NPKM2）>化肥+低量有机肥（NPKM1）＞化肥（NPK）＞无肥（CK）；不同处理玉米和大豆产量由高到低的顺序均为：NPKM2＞NPKM1＞NPK＞CK，各处理的玉米产量年际间均表现出增加的趋势，而大豆产量年际间变化不显著。生物耗竭试验表明，长期施用有机肥可提高黑土的生产能力。 |
| 英文摘要: |
| Based on long-term experiment located in central section of the northeast black soil, the effect of organic manure application on black soil fertility and crop yield was studied. The results show that long-term organic manure application could enhance black soil fertility, compared to pre-test, organic matter content, total nitrogen, total phosphorus, available nitrogen, available phosphorus and available potassium under organic manure application treatment demonstrated increase trend, organic matter content, total nitrogen, available nitrogen, total phosphorus, available phosphorus of fertilizer treatment showed increase trend, however, total potassium and available potassium showed opposite trend; under no fertilizer treatment, all indicators except total phosphorus and total potassium showed increase trend; C/N under different treatments demonstrated decrease, the range of values from 11.32 to 12.01; pH was suitable range for crop grow attributed to organic manure application. ＞0.25 mm water stability aggregate under different treatments was in the order of fertilizer plus high organic manure(NPKM2) > fertilizer plus low organic manure(NPKM1) > fertilizer(NPK) > no fertilizer(CK); the yield of maize and soybean indicated increase with fertilizer and organic manure application, and, annual yield of maize under different treatments showed increase trend, but, the same trend was not found in yield of soybean. The bio-exhausting experiment proved that organic manure application could increased black soil productivity. |
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