| 王喜艳,张亚文,冯 燕,周兴本,刘 洋,周 剑,黄 毅.玉米秸秆深层还田技术对土壤肥力和玉米产量的影响研究[J].干旱地区农业研究,2013,31(6):103~107 |
| 玉米秸秆深层还田技术对土壤肥力和玉米产量的影响研究 |
| Effects of deep maize straw returning on soil fertility and maize yields |
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| DOI：10.7606/j.issn.1000-7601.2013.06.019 |
| 中文关键词: 玉米 秸秆还田 土壤肥力 产量 |
| 英文关键词:maize straw returning soil fertility yield |
| 基金项目:公益性行业(农业)科研专项经费项目“东北旱地玉米土、肥、水联合跨季节调控技术体系研究”（200903007） |
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| 中文摘要: |
| 采用田间试验，利用玉米秸秆深层还田技术对0～40 cm土层土壤肥力和玉米产量的影响进行了研究。结果表明，玉米秸秆深层还田不仅能改善土壤理化性质，培肥土壤，还能增加玉米产量。秸秆深层还田3年后0～20 cm土层有机质含量提高了1.8%～8.38%，速效氮含量提高了5.47%～14.66%，速效磷含量提高1.33%～1.42%，速效钾含量提高了1.77%～5.31%，容重降低了0.75%～4.51%；20～40 cm土层有机质含量提高了11.94%～46.27%，速效氮含量提高了6.15%～30.82%，速效磷含量提高1.74%～2.98%，速效钾含量提高了4.3%～13.98%，容重降低了5.52%～13.79%；深层秸秆还田后玉米增产量有明显的增加趋势，增产量在4.7%～8.5%之间。 |
| 英文摘要: |
| A field trial was carried out to study the effects of deep maize straw returning on 0～40 cm layer soil fertility and maize yields. Results show that deep maize straw returning can not only improve the physic chemical properties of soil but also improve maize yield. After deep maize straw
returning for three years， organic matter content in soils of 0～20 cm has increased by 1.8%～8.38%, The content of available nitrogen, phosphorus, and potassium increased by 5.47%～14.66%, 1.33%～1.42%, and 1.77%～5.31%, respectively. By contrast, soil bulk density decreased by 0.75%～4.51%. In addition, these parameters showed similar trand of the soils of 20～40 cm. There was a considerable increase in the maize yields after deep maize straw returning, increased by 4.7%
～8.5%. |
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