Effects of H-type cultivation rack spacing on the growth,photosynthesis,yield,and quality of fruit vegetables under different vertical cultivation models
WANG Yichao
YAO Xiang
LI Jinling
LI Meng
MA Yongbin
WANG Hu
WANG Jiqing
LI Xinzheng
DU Qingjie
XIAO Huaijuan
Abstract：To investigate the effects of different interlayer spacings in H-type cultivation racks on the growth and develop-ment of fruit vegetable,this study employed two cultivation models:Tomato(lower layer)+pepper(upper layer)and cucumber(lower layer)+pepper(upper layer).Three interlayer height gradients(120 cm,140 cm,and 160 cm)were set,and parameters including growth,photosynthetic,yield,and quality of the three vegetables were measured to determine the optimal interlayer spacing for H-type double-layer cultivation.The results showed that in the tomato+pepper model,interlayer spacings of 140 cm and 160 cm resulted in higher plant height,stem diameter,and yield for both the upper and lower layer vegetables.The 160 cm treatment demonstrated better improvements in photosynthetic pigment content,photosynthetic characteristics,and quality.In the cucumber+pepper model,the 140 cm spacing exhibited comprehensive advantages.In this treatment,the cucumber yield in the lower layer was 10.76％higher than the 120 cm treatment,with no significant difference from the 160 cm treatment.The fruit vitamin C and soluble sugar content increased by 22.14％and 20.22％,respectively.Meanwhile,the vitamin C content of the upper pepper layer increased by 49.62％,and the ni-trate nitrogen accumulation increased by 37.75％.Economic analysis showed that the 140 cm spacing resulted in the high-est net profit.In conclusion,a 140 cm inter layer spacing optimizes the light environment,crop productivity,and econom-ic returns,providing valuable technical parameters for facility-based vertical cultivation of fruit vegetables.
Keywords：Spacing in H-type cultivation RacksH-type double-layer cultivationTomato+PepperCucumber+PepperYieldQuality
Publication Date：2025-11-05
Online Publishing Date：2025-12-04(First online date of this platform, not the publication date of the document)
Pages：10( 141-150 )