因此，为了提高水稻对青枯病的抗性，秸秆还田时一方面要增大还田后土壤的翻

Therefore, in order to improve the resistance of rice to bacterial wilt, on the one hand, the plowing depth of the soil should be increased when the straw is returned to the field, so as to prevent the plow layer from becoming shallow with the prolongation of the return period, and to promote the nutrient in the plow layer soil. On the other hand, with the extension of the field return period and the enhancement of soil fertilizer supply capacity, it is necessary to lose weight in time.

Therefore, in order to improve the resistance of rice to bacterial wilt, when returning straw to the field, on the one hand, it is necessary to increase the plowing depth of the soil after returning to the field, prevent the topsoil from becoming shallow with the extension of returning years, promote the uniform distribution of nutrients in the topsoil, and on the other hand, with the extension of returning years and the enhancement of soil fertility, it is necessary to lose weight in a timely manner.

Therefore, in order to improve the resistance of rice to bacterial wilt, on the one hand, it is necessary to increase the ploughing depth of the soil after returning straw to the field, to prevent the topsoil from becoming shallow with the extension of returning years, and to promote the uniform distribution of nutrients in the topsoil; on the other hand, it is necessary to lose weight in time with the extension of returning years and the enhancement of soil fertility.