基质栽培中营养液配方对草莓生长、光合特性及品质的影响
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国家科技支撑计划项目 (2008BAD92B04)和湖北省自然科学基金重点项目(2009CDA097)


Effects of nutrient solution in soilless cultivation on plant growth,photosynthetic characteristics and fruit quality of strawberry
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    摘要:

    研究3种营养液配方对草莓植株生长、光合特性、产量及品质的影响,以筛选出最适宜草莓生长的营养液配方。结果表明,营养液中硝酸钙(Ca(NO3)2·4H2O)、硝酸钾(KNO3)、磷酸氢二铵((NH4)2HPO4)、硫酸镁(MgSO4·7H2O)、硝酸铵(NH4NO3)含量分别为295、303、62、246、0 mg/L时对草莓生长及果实品质均优于另外2种配方:有利于营养生长期的草莓生长,植株表现为叶片较大且厚、花梗较粗、叶色浓绿;有利于草莓成花和花朵发育,果实综合性状最好。本研究结果可为建立优质高产温室基质栽培草莓的肥水运筹系统提供理论基础和技术依据。

    Abstract:

    Hydroponic experiments of strawberry were conducted with three formulations of nutrient solution to select the best formulations for soilless cultivation of strawberry.Several main characteristics of growth including the fresh weight and dry weight of overground plant and root,the growth of crown,the photosynthetic and quality of strawberry,the diameter of staminate flower,the growth amass were investigated.The results showed that the effect of nutrient solution with the content of calcium nitrate tetrahydrate,potassium nitrate,ammonium dihydrogen phosphate,magnesium sulfate and ammonium nitrate at 295,303,62,246,0 mg/L on the growing status and fruit quality of strawberry are better than that of the other 2 treatments.This nutrient solution formula was the most propitious for the growth of ‘Jingyao’ strawberry and the enhancement of the fruit quality among the three different treatnments.That is,it facilitated the growth of strawberry in alimentation growth periods,and the leaves of ‘Jingyao’ strawberry was larger and thicker with a dark-green color,and the diameter of the pedicel was also larger. In addition,the nutrient solution formula was also conducive to the flowering promotion and the reproductive growth of strawberry,and resultes showed that the single fruit weight,yield and fruit quality is the best comparing to the other treatments.The results of this study provided academic and technological basis for establishing high yield and quality of strawberry in greenhouse substrate culture of irrigation and nitrogen application system. 

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曾祥国,冯小明,向发云,吴润玲,张鹏,顾玉成.基质栽培中营养液配方对草莓生长、光合特性及品质的影响[J].华中农业大学学报,2012,31(5):569-573

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  • 收稿日期:2011-10-26
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