Improved wheats will be introduced on a wide scale this year.
Some wheats and ryes tiller freely.
The result indicated that Dezhou's soil state of moisture retention basically is suitable winter wheats' growth.
Stopping on a small wooden bridge, I look across at the patch of green on the opposite hill. Over there grasses have withered, and only wheats are sprouting on the wintry land.
Using wind velocity profile law determinate the aerodynamic roughness length of wheats different growth periods: the average roughness of shooting period, is 6.