| Soil water content and crop response under intercropping of different crops in dry farmland of the Southern Kerqin Sandy Land |
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| DOI：10.7606/j.issn.1000-7601.2014.02.015 |
| Key Words: dry farmland intercropping pattern soil moisture copy yield |
| Author Name | Affiliation | | JIA Wei1，2, SUN Zhan-xiang2, BAI Wei1，2, ZHENG Jia-ming2, DU Gui-juan2, FENG Liang-shan1，2, YANG Ning1，2, LV Lin-you3 | （1.沈阳农业大学土地与环境学院, 辽宁 沈阳 110866； 2.辽宁省农业科学院耕作栽培研究所,辽宁省旱作节水工程技术中心, 辽宁 沈阳 110161； 3.辽宁省农业科学院风沙地改良利用研究所, 辽宁 沈阳 110161） |
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| Abstract: |
| Considering the current status of soil erosion, desertification and groundwater depletion, as well as the advantage of intercropping between trees and crops, we selected peanut, millet, sweet potato, and kernel-apricot to construct intercropping systems and investigated their effect on soil water content and crop growth in dry farmland of the Southern Kerqin Sandy Land. Results showed that there are different levels of negative effects of soil water in different points (W2, W1, T0, E1, E2) under different systems. Tree-crop intercropping can preserve the surface soil moisture, whereas there existed competition between kernel-apricot and crops, with 40～60 cm being the most severest and the order of competition degree being potato>millet>peanut. Yields of peanut, millet, and sweet potato in the intercropping system were decrease by 70.7%, 63.3%, and 64.0% as compared to monocropping. |
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