Abstract: The paper uses DID model to quantitatively evaluate the household income change of farmers that participate in the adjustment of corn planting structure or not in sickle bend area, and also uses the binary logistic model to further study the willingness of farmers to participate in structural adjustment. The results show that farmers′ participation in maize planting structural adjustment reduces the loss of agricultural income caused by the downward price of maize, which is manifested as a positive effect on agricultural income. The effect of maize planting structure adjustment on farmer′s income increase is not significant, but the overall implementation of planting structure adjustment has a positive impact on the total household income of farmers; for non-regulated households, reducing maize area can also reduce agricultural income losses, but this behavior directly reducing maize farmland without structural adjustment is not conducive to the improvement of household income. There is a significant positive correlation between the level of education, whether to understand the subsidy policy and the willingness to adjust; among the characteristic factors of farmer production, the area of corn planting and the number of agricultural training are significant to planting structure, and the distance from the nearest town, the transportation situation, neighborhood planting behavior are also important factors affecting the willingness of farmers to adjust the structure. At present, it′s not enough and sustainable that income effect of agricultural planting structure adjustment is only reflected on the reduction of corn price loss to a certain extent. It must be truly reflected in the growth of peasants′ income. Therefore, government needs to increase its investment in agricultural subsidies, services, investment and transformation of production methods.

Key words: maize, structural adjustment, farmers′ income, willingness