arable相关论文
Since ancient times, the Chinese government has always attached a great deal of importance to food security . However, t......
China has 22%of the world’s population but only 7% of the world’s arable land.Food security has been a chief mission o......
This paper explains environmental problems from the point of economy. Referring to the “System of Integrated Environmen......
The exploitation of coal resources inevitably affects, to different degrees, arable land resources and impacts the socio......
通过对唐山市丰润区耕地土壤养分的调查,结果表明,与1982年土壤普查结果相比,有机质、全氮、有效磷、速效钾含量均呈上升趋势,上升......
耕地地力等级的划分为有效地保护耕地、耕地合理开发与利用、耕地的流转补偿,以及占用耕地、毁坏耕地的补偿与处罚等提供依据.根据......
We establish the unsafe state indicator system reflecting the unsafe state of arable land within the scope of the city. ......
This study examined the adoption of herbicides by arable farmers in Edo State. It assessed the proportion of arable farm......
