| 贵州开阳烟区烤烟需水特征与烟田土壤水分变化研究 |
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| 引用本文： | 冷璐,陆引罡.贵州开阳烟区烤烟需水特征与烟田土壤水分变化研究[J].湖南农业科学,2014(7):7-11. |
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| 作者姓名： | 冷璐 陆引罡 |
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| 作者单位： | 贵州大学农学院,贵州贵阳550025 |
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| 基金项目： | 国家科技支撑计划资助项目（2012BAD40B03-4） |
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| 摘 要： | 烤烟需水特征与烟田土壤水分变化状况对烤烟生长发育、生理生化过程、烟叶的品质特征和产量都有显著的影响。通过田间试验,研究优质烤烟需水特征和各生育期土壤水分的动态变化,结果表明,烤烟生长季内需水量具有明显的阶段性：伸根期消耗少,旺长期明显升高,成熟期逐步下降,烤烟需水特征与烟株的生长趋势相一致。烤烟伸根期、成熟期土壤含水量大于烤烟的需水量,需要注意排水,而旺长后期和成熟前期由于阶段性干旱,土壤含水量小于烤烟的需水量,这一时段应及时进行补灌。
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| 关 键 词： | 需水特征 烤烟 土壤水分 |
Flue-Cured Tobacco Water Requirement Characteristics and Soil Moisture Change in Kaiyang Tobacco Area |
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| LENG Lu,LU Yin-gang.Flue-Cured Tobacco Water Requirement Characteristics and Soil Moisture Change in Kaiyang Tobacco Area[J].Hunan Agricultural Sciences,2014(7):7-11. |
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| Authors: | LENG Lu LU Yin-gang |
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| Institution: | (College of Agriculture, Guizhou University, Guiyong 550025, PRC) |
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| Abstract: | Flue-cured tobacco water requirement characteristics and soil moisture condition have very significant effect on tobacco growth, physiological and biochemical process, the quality of tobacco and fertilizer use in tobacco fields. T his research through the field trials providedtechnicalsupportforthetobaccoplantingandwaterusingproject.Theresultsshowedthatithasobviousstagesondomesticdemand of water：it’s less consumption in root stretch period, significantly higher in vigorous growing period, gradually declined in mature period, flue-curedtobaccowaterrequirementcharacteristicsconsistentwiththegrowthtrendoftobacco.Thesoilmoisturecontentisgreaterthanthe tobaccowaterrequirementinrootstretchandleafmatureperiod,thusneedtopayattentiontodrainage;thesoilmoisturecontentlessthanthe waterrequirementsin vigorousgrowing period due to periodic drought,thistime should be timely to supplementalirrigation. |
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| Keywords: | water requirement characteristic flue cured tobacco soil moisture |
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