| 不同种植年限蔬菜大棚土壤次生盐渍化发生机理的研究 |
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| 引用本文： | 熊汉琴,王朝辉,罗贵斌.不同种植年限蔬菜大棚土壤次生盐渍化发生机理的研究[J].陕西林业科技,2006(3):22-26. |
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| 作者姓名： | 熊汉琴 王朝辉 罗贵斌 |
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| 作者单位： | 1. 汉中职业技术学院,陕西,汉中,723100
2. 西北农林科技大学资源环境学院,陕西,杨陵,712100 |
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| 基金项目： | 国家自然基金项目(40201028和30370843)，农业部“948”重大研究项目(2003-Z53) |
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| 摘 要： | 对不同种植年限的蔬菜大棚、露天菜地和一般农田土壤耕层可溶性盐分进行了分析测定。结果表明:大棚菜地土壤盐分含量0．48-1．15 g／kg,平均为1．06 g／kg,比相邻农田增加253．3％,表明大棚菜地土壤有盐渍化,随着大棚使用年限的延长土壤盐分含量增加。且主要是Cl-、NO3-含量增加。
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| 关 键 词： | 种植年限 蔬菜 大棚 土壤次生盐渍化 机理 |
| 文章编号： | 1001-2117（2006）03-0022-05 |
| 收稿时间： | 2006-05-18 |
| 修稿时间： | 2006-05-18 |
The Effects of Cropping Duration on the Mechanism of Secondary Salinization in Greenhouse Vegetable |
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| XIONG Han-qin,WANG Zhao-hui,LUO Gui-bin.The Effects of Cropping Duration on the Mechanism of Secondary Salinization in Greenhouse Vegetable[J].Shaanxi Forest Science and Technology,2006(3):22-26. |
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| Authors: | XIONG Han-qin WANG Zhao-hui LUO Gui-bin |
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| Abstract: | Several major nutrients in different cropping duration of vegetable, air-opening vegetable and cereal crop soils had been invested. The results showed that the salt content was 0.48 to 1. 15 g/kg corn pared with the average of 1.06 g/kg in the greenhouse soil, 253.3% over that of the cereal cropland soil, especially with the Cl ,NO3 This showed that the greenhouse soil tended to salinization with the prolongation of greenhouse age. |
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| Keywords: | Cropping duration Vegetable greenhouse secondary salinization mechanism |
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