負(fù)壓灌溉對(duì)設(shè)施草莓生長(zhǎng)及養(yǎng)分吸收的影響

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中圖分類號(hào)：S668.4，S275 文獻(xiàn)標(biāo)識(shí)碼：A

Effect of Negative Pressure Irrigation on Growth and Nutrient Absorption of Strawberry

JIA Yan1， LIU Wei 1，2 ，WANG Guoping2，GUO Hua2 ，GAO Fei1， FAN Xinping2 （1.College of Horticulture，Shanxi Agricultural University，Jinzhong Shanxi O3o8oo，China; 2.Pomology Institute，Shanxi Agricultural University，Taiyuan Shanxi O3oo31，China）

Abstract：【Objective】To determine the optimal irigation negative pressurevalue for eficient water-saving irigation techniques，theefectsofnegativepressureirigationonthegrowthandnutrientabsorptionofgreenhousestrawberieswere investigated.【Methods】Using‘Santa’and‘Benihoppe’strawberries as experimental materials，a pot experiment waconducted with manual irrigation as the control group （CK）. Two negative pressure levels （ -5kPa and -10kPa ）were compared to assess teir efects on soil moisture status，water consumption，growth performance，and nutrient absorption.【Results】 Compared to CK，the cumulative irrigation water volume for‘Santa’decreased by 11.40% and 64.74% under -5kPa and -10kPa treatments，respectively，while‘Benihoppe’decreased by 43.60% and 79.04% . In terms of growth indicators，the -5kPa treatment showed no significant difference from CK，while the -10kPa treatment was significantly lower. For‘Benihoppe’，multiple growth indicators were comparable to CK under the -5kPa treatment but significantly declined under the -10kPa treatment. Aditionally，the nitrogen，phosphorus，and potassium content and absorption in the aboveground parts， as well as nitrogen and phosphorus translocation/accumulation，were significantly higher than CK under the -5 kPa treatment. 【Conclusion】 The -5kPa negative pressure irrigation condition was successfully identified as suitable for enhancing the productioneficiencyof grenhousestrawberries，providingatheoreticalbasisfortheeficientutilizationof waterresources in modern agriculture and the innovation of agronomic water-saving technologies.

Key words：strawberry；negative presure irrigation；growth and development；water consumption;nutrient absorption草莓（Fragaria x ananassa Duch.），隸屬于 薔薇科，是一種多年生的漿果類植物。（剩余9671字）