通过对大豆进行一次中耕与免中耕的研究,结果表明,中耕可以协调大豆植株营养生长和生殖生长的关系,降低株高、结荚高度,减少主茎节数,增加分枝、单株荚数、粒数、单荚粒数,降低结实性、百粒重.产量降低,但不显著.而免中耕有增产的趋势,并且可以降低生产成本、增加经济效益. The results showed that cultivating can coordinate the relationship between vegetative growth and reproductive growth of soybean plants, reducing the plant height and pod height, reducing the number of main stems, increasing the number of branches and pods per plant , Grain number, single pod grain number, reduced seed set, 100 grain weight.The yield was reduced, but not significant.The free tillage had the tendency of increasing yield, and could reduce the production cost and increase the economic benefit.