Lanzhou City,endowed with distinct ecological advantages,boasts a diverse array of high-quality plateau summer vegetables.Investigating the moderate scale of cultivation for these vegetables can significantly accelerate the growth of Lanzhou's vegetable industry and facilitate agricultural industrialization.This study employs the Cobb-Douglas(C-D)production function to assess the optimal cultivation scale for baby cabbage,cauliflower,and celery among 806 plateau summer vegetable farmers in Lanzhou,utilizing data collected through field surveys and questionnaires.The findings indicate that the actual agricultural labor force engaged in plateau summer vegetable cultivation in Lanzhou is less than the theoretically optimal labor allocation.With the objective of maximizing marginal production,the ideal average land input per farmer for cultivating baby cabbage,cauliflower,and celery is calculated to be 1.49 hm2,0.83 hm2 and 1.36 hm2,respectively.Considering optimal labor input constraints,the suitable land area per laborer for these crops is determined to be 0.34 hm2,0.16 hm2 and 0.17 hm2,respectively.There is substantial potential for enhancing the large-scale cultivation of cauliflower,baby cabbage,and celery in Lanzhou.Therefore,it is recommended to intensify training programs,elevate planting and management standards,enhance information services related to land circulation,and augment supportive measures.
moderate scale managementplateau summer vegetableCobb-Douglas production function