描述:
duction in the area is
restricted by disadvantageous natural resources and environmental conditions,
including low arable land area per capita, frequent drought events and a landscape
dominated by mountains. Forage crop rotation systems could improve soil fertility,
increase crop外eld and provide quality forage supplies for livestock production.
Additionally, their adoption is considered a suitable means to advance sustainable
agriculture development. In this study, the role and status of forage crop rotations in
Tianshui city were studied.
描述:
by human and god. What is
more important, Dayu spirit and culture due to him have a immeasurable effect on the
formation process of Chinese civilization, on the political awareness of feudal state, on the
lower-level life of the common people, and on the aesthetic culture of literature and art.