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:
s a historical
and cultural value and artistic value, can not be ignored, and the use of value
from the current run, they demonstrate the art of the laws and rules also have
an aesthetic universal,Itself a form of beauty and re-creative values, which for
us to inherit and carry forward the modern realization of the great
responsibilities and obligations of traditional arts have practical
significance.
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