水分胁迫下间作棉田土壤水分及产量分析

发布时间：2018-05-06 19:43

本文选题：枣棉间作 + 种植模式　；参考：《干旱区研究》2016年01期

【摘要】：2012—2013年在阿拉尔垦区间作棉田中设置试验,分析间作系统中棉花种植模式和水分胁迫对土壤水分、产量的影响。研究表明:1 0~100 cm土层,蕾期和吐絮期田间土壤含水量表现出先降低再升高的趋势,含水量最低值出现在40~60 cm土层。花铃期田间土壤含水量先降低再升高,而后又降低,拐点分别为40~60 cm土层和60~80 cm土层。2蕾期,M2W4、M2W2、M2W3、M1W4土壤含水量较高。花铃期,M2W2含水量较高。吐絮期M2、M3模式土壤含水量整体较高。3同一模式下,棉花单株产量最高的是W2水分处理(4 500 m3·hm-2);同一灌水量处理下,单株产量经济效益最高的是M2模式(距红枣行距1.0 m处种植棉花)。综合考虑,距幼龄红枣行距1.0 m处种植棉花,配合滴灌水量4 500 m3·hm-2利于棉田发挥最大生产潜力,也利于单株棉花产量的提高。
[Abstract]:The experiment was carried out in the intercropping cotton field in Alar Reclamation area in 2012-2013 to analyze the effects of cotton planting pattern and water stress on soil moisture and yield in the intercropping system. The results showed that the soil water content in the soil layer of 10 ~ 10 ~ 100 cm, bud stage and flocculation stage showed a tendency of decreasing first and then increasing, and the lowest value of water content appeared in 40 ~ 60 cm soil layer. At flowering and boll stage, the soil water content in the field first decreased and then increased, and then decreased. The inflexion points were 40 ~ 60cm soil layer and 6080cm soil layer. 2. At bud stage, the soil moisture content of M2W4 + M2W2W2M2W3M1W4 was higher than that of M2W2M2W3M1W4. The water content of M2W2 was higher than that of M2W2 at flowering and boll stage. Under the same model, the highest yield per plant of cotton was W2 water treatment (4500 m3 路h ~ (-2)), and under the same irrigation amount, the highest soil water content was obtained in the model of M _ (2) C _ (2) M _ (3) at the stage of spitting. The highest economic benefit per plant was the M2 model (1.0 m from the row distance between red jujube and jujube). Considering synthetically, planting cotton at 1. 0 m distance from young jujube row, combined with drip irrigation water quantity of 4 500m 3 hm-2, is beneficial to the cotton field to give full play to its productive potential and to the increase of cotton yield per plant.
【作者单位】：塔里木大学植物科学学院;
【基金】：国家自然科学基金(31060181,31260309) 国际合作项目(2011/0616/Cotton 002)资助
【分类号】：S665.1;S562;S152.7

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