| 种植年限对蔬菜大棚土壤肥力的影响 |
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| 引用本文： | 熊汉琴,王朝辉,宰松梅.种植年限对蔬菜大棚土壤肥力的影响[J].水土保持研究,2007,14(3):137-139. |
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| 作者姓名： | 熊汉琴 王朝辉 宰松梅 |
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| 作者单位： | 1. 汉中职业技术学院,东区,陕西,汉中,723100;西北农林科技大学资源环境学院,陕西,杨凌,712100
2. 西北农林科技大学资源环境学院,陕西,杨凌,712100 |
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| 基金项目： | 国家自然科学基金;国家引进国际先进农业科学技术计划(948计划) |
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| 摘 要： | 选取不同种植年限蔬菜大棚、露天菜地和一般农田，测定了土壤pH值、有机质、全氮、硝态氮、铵态氮、速效P、速效K和阳离子代换量等主要养分。结果表明：大棚土壤pH值小于露天菜地、小于农田土壤，随种植年限的延长土壤逐渐酸化。3年以后大棚菜地土壤已明显出现N、P严重富集，K含量降低，不同种植年限大棚土壤阳离子代换量随种植时间延长而下降。7年以后的大棚已大部分出现肥力障碍。
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| 关 键 词： | 蔬菜 大棚 种植年限 土壤肥力 |
| 文章编号： | 1005-3409（2007）03-0137-03 |
| 收稿时间： | 2006-06-07 |
| 修稿时间： | 2006-06-07 |
Influence of Cropping Duration on Soil Fertility in Vegetable Green-house |
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| XIONG Han-qin,WANG Zhao-hui,ZAI Song-mei.Influence of Cropping Duration on Soil Fertility in Vegetable Green-house[J].Research of Soil and Water Conservation,2007,14(3):137-139. |
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| Authors: | XIONG Han-qin WANG Zhao-hui ZAI Song-mei |
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| Institution: | 1. Hanzhong Technical College, Hanzhong,Shaanxi 723100, China; 2. College of Resources and Environmental Science, Northwest Sci-tech University of Agriculture and Forestry, Yangling ,Shaanxi 712100, China |
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| Abstract: | Investigation and determination of several major nutrients in different cropping duration of vegetable, air-opening vegetable and cereal crop soils, chemical characteristic such as pH, organic matter, total, nitrate N, ammonium N, available P, and available K were invested. The results showed that the pH of the green-house soil was lower than that of the air-opening land soil and lower than that of the cereal cropland soil. The soil has showed obvious tendency to acidification. After 3-year, the green-house soil showed obvious enrichment of N and P, decrease of available K content. The positive ion exchange capacity of the green-house soil tends to decrease with the extension of green-house age. Soil in 7 year old green house showed obvious constrains of fertility. |
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| Keywords: | vegetable green-house cropping duration soil fertility |
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