描述:
be given when fully and rational use of local
climatic resources such as solar radiation, heat and water, while other conditions (such as soil
fertility, carbon dioxide concentration, cultivation level etc.)
描述:
ogical characteristics of
the crops and people’s production and business activities, largely dominated by light,
heat, water, gas and other climatic factors.
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.