| 膜下滴灌棉花源库比调节对产量和品质影响及对土壤水分的响应 |
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| 引用本文： | 何在菊,罗宏海,韩春丽,张宏芝,张旺锋.膜下滴灌棉花源库比调节对产量和品质影响及对土壤水分的响应[J].新疆农业科学,2008,45(1):7-14. |
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| 作者姓名： | 何在菊 罗宏海 韩春丽 张宏芝 张旺锋 |
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| 作者单位： | 石河子大学新疆兵团绿洲生态农业重点实验室/农学院,新疆石河子,832003 |
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| 摘 要： | 选用不同叶型的棉花品种,在膜下滴灌条件下,设置3个土壤水分梯度,分别控制0～60 cm土壤含水量的滴水下限为田间持水量的85;～90;(高水)、70;～75;(中水)、55;～60;(低水),滴水上限均为田间持水量,并在花铃期不同程度地减源减库,研究棉花源库比调节对产量和品质的影响及对土壤水分的响应.结果表明:减源减产比减库减产的影响大,适宜范围内源不足引起的产量损失,可通过增加水分来弥补,减源减库过度则不可能通过水分来弥补,而这种水分调节作用也是通过表现在水分调节了单株结铃数的增加而实现的.品种间,小叶型新陆早10号减源和减库减产的程度最大,新陆早13号次之,鸡脚叶型标杂A1减产效应最小,且标杂A1在土壤水分充足条件下产量最高.品种遗传特性和土壤水分状况是影响棉纤维品质的主要因素,源库处理对其影响不明显,综合分析,与其他两个品种相比标杂A1的品质较优.
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| 关 键 词： | 棉花 膜下滴灌 源库比 产量和品质 土壤水分 |
| 文章编号： | 1001-4330（2008）01-0007-08 |
| 收稿时间： | 2007-04-19 |
| 修稿时间： | 2007年4月19日 |
Effect of Cotton Source-Sink Regulator on Yield, Fiber Quality and Soil and Water Under-mulch-drip Irrigation |
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| HE Zai-ju,LUO Hong-hai,HAN Chun-li,ZHANG Hong-zhi,ZHANG Wang-feng.Effect of Cotton Source-Sink Regulator on Yield, Fiber Quality and Soil and Water Under-mulch-drip Irrigation[J].Xinjiang Agricultural Sciences,2008,45(1):7-14. |
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| Authors: | HE Zai-ju LUO Hong-hai HAN Chun-li ZHANG Hong-zhi ZHANG Wang-feng |
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| Abstract: | Based on the experiment with different leaves type of cotton cultivars and 3 water moisture levels,the effect of cotton source-sink regulator on yield and fiber quality and the response to water moisture with under-mulch-drip,and setting up different source-sink treatments during the period of blossoming and boll-forming stage were investigated.Three lower irrigation limits between 0-60 cm soil: 85%-90%(high water),70%-75%(moderate water) and 55%-60%(low water) of field water moisture capacity;the higher irrigation limit was all field water moisture capacity were designed.The results showed that the effect on lower yield caused by source abatement was greater than that caused by sink abatement.Increasing soil moisture could cover the loss of yield caused by lack in source in a fitting range,but if the degree of source abatement and sink abatement were much serious,the reparation could not be obtained.Further more the water regulation action was achieved by regulating the number of bolls per plant.Between cotton cultivars,the degree of reducing yield by source abatement and sink abatement of Xinluzao 10(small leaf type) was the greatest,while effect of lower yield of Biaoza A1(okra leaf type)was the smallest, and the yield of Biaoza A1 was the highest under the condition of high water. The main factors,which affected the fiber quality were the hereditary trait of variety and soil moisture condition,while the source and sink treatments were not obviously.The fiber quality of Biaoza A1 was superior compared with the other two varieties. |
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| Keywords: | cotton under- mulch - drip irrigation source - sink ratio yield and quality soil moisture |
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