Abstract: The effects of different sowing ways on the topsoil water and physiological characteristics of winter wheat were studied.The result showed that the soil was solid and the soil water was not easily evaporated in trench planting,so the soil had strong water rentention ability.In direct seeding,the soil was loose and water in soil surface layer was easy to disappear and infiltrated quickly,so the water holding ability of the soil was poor.In both sowing ways,the flag leaves could maintain a long green duration,which is beneficial to enhancing the photosynthesis and dry material weight;The distribution proportion of wheat roots in trench planting is bigger in lower level soil than in the surface layer soil,which contributes to the increase of ear numbers and grain weight.The yield of trench planting is about 8.4%higher than that of direct seeding.

Key words: Winter wheat, Sowing ways, Topsoil water, Physiological characteristic

CLC Number: 

• S512.01