The vertical separation principle of alfalfa in alfalfa rotary drum
The rotary blade is usually used as a soil-gashing tool to improve
With the fast development of stockbreeding, the demand for herbage
Yak is a kind of mammals living at the highest altitude except huma
Wheat straw was torrefied at temperatures ranging from 250 to 300 °
Traditionally, overturning soil by tillage tools is popularly used