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:
g Bu between Yong Le
and Zheng Tong. He had participated in the third recession of ,Ming Dynsty called troops back from An Nan(The Fouth and Fifth Chapter) and
affirms his role on the the mutation relationship between Ming Dynasty and An Nan.
Luo Rujing took an important part in the development of Shan Xi
Military-Farmsettlement for ten years. He had made enormous contribution on Shan
Xi Military-Farmsettlement's restoration and water conservancy facilities
management. Compared with the later period of Yong Le, Shan Xi military farm
settlement has restored greatly on a stage as intermediate period of Xuan De. With
Luo Rujing's absent from Shan Xi, Military一Farmsettlement in northwest of Ming
Dynasty degraded obviously.
"Paeificated Jiao Zhi, Carried out the mission successfully" and had come into
ShanXi four times to manage in the opening up wasteland and "He contributes in
many aspects".