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:
est region,
which c
ombined with the
water-saving, agricultural soil and water conservation techniques, and then taken "
drought
resistance, reduce erosion, increase efficiency" as a principle.
描述:
t important methods
commonly used in the prehistoric culture exhibiton. Scene reappearance is not simply
an artistic creation, but a serious scientific work. Which archaeological information
描述:
early defined the concept of ancient forestry literature,
understood its meaning and value of research and discussed the historical distribution and basic
characteristics of ancient Chinese forestry literature in the ancient books.