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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (27): 198-201.doi: 10.11924/j.issn.1000-6850.2014-0924

所属专题： 棉花； 农业气象

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在干旱条件下保水剂保水效果及其对棉花产量的影响

吴湘琳   

  1. 新疆农业科学院土壤肥料与农业节水研究所
  • 收稿日期:2014-04-01 修回日期:2014-04-01 接受日期:2014-05-30 出版日期:2014-10-15 发布日期:2014-10-15
  • 通讯作者: 吴湘琳
  • 基金资助:
    新疆维吾尔自治区科技援疆项目“土壤复合保水颗粒关键技术引进与应用”(2013911079)

Effect of Soil Water Retention Agent and Influence on Cotton Production under Drought Condition

  • Received:2014-04-01 Revised:2014-04-01 Accepted:2014-05-30 Online:2014-10-15 Published:2014-10-15

摘要： 研究在干旱条件下保水剂保水效果，及其对棉花产量和产量带来经济效益的影响。本次研究设5个处理，即土壤保水剂施用量为0 (CK)、15 (T1)、30 (T2)、45 (T3)和60 kg/hm2 (T4)，每个处理3个重复，在和田策勒县进行试验。结果表明：（1）各处理与对照的土壤含水量在0~30 cm的土层中差异不显著(P＞0.05)，其中0~10 cm土层中各处理保持在14.62%~15.53%之间，10~30 cm保持在16.35%~17.95%之间；而在30~40 cm土层中，对照与各处理间的土壤中含水量差异明显(P＜0.05)，T1、T2、T3和T4土壤含水量较CK分别增加了6.6%，7.45%，7.9%和7.8%。（2）相比CK，T1、T2、T3和T4产量达到显著差异水平(P＜0.05)，籽棉产量最高为2868.90 kg/hm2 (T2)。从经济效益分析可知，处理T1、T2、T3和T4分别比对照增加了6600.30、9649.80、6937.50、6543.45元/hm2，其中30 kg/hm2 (T2)处理的投入产出比为16.08。试验区施用保水剂后土层土壤水分有增加的趋势，施用量在30 kg/hm2时棉花产量最高，此时经济效益也达到最高水平。

关键词: 协同发展, 协同发展

Abstract: The paper aims to study water- keeping effect of water retention agent on cotton yield and the economic impact under the condition of drought. There were 5 treatments in this study, soil water retention agent application rates were 0(CK), 15 (T1), 30 (T2), 45 (T3) and 60 kg/hm2 (T4), respectively, each treatment with three replicates were conducted at Cele county of Hotan. The results showed that: (1) soil moisture differences between each treatment and control in soil layer of 0-30 cm were not significant (P＞0.05), each treatment remained between 14.62 to 15.53% in 0-10 cm soil layer, 16.35 to 17.95% in 10-30 cm soil layer; while in 30-40 cm soil layer, differences of soil moisture content between control and each treatment were significant (P＜0.05), soil moisture increased after applying composite soil moisture retention particles, T1, T2, T3 and T4, increased by 6.6%, 7.45%, 7.9% and 7.8%, respectively; (2) comparing to the control (CK), yield increase of T1, T2, T3 and T4 reached different level (P＜0.05), seed cotton yield was up to 2868.90 kg/hm2(T2). By economic analysis, T1, T2, T3 and T4 increased 6600.30, 9649.80, 6937.50 and 6543.45 yuan/hm2 compared to the CK, the input-output ratio of 30 kg/hm2 (T2) treatment was 16.08. The soil moisture had a tendency to increase by using water retention agent in experimental zone. Cotton yield and economic benefits were highest in the test area with 30 kg/hm2 (T2).