And thereupon a scientific basis for exploiting the natural productivity potential of the dry farming in the region was proposed.
从而为开发该地区旱地农业的自然生产力潜势提供了科学依据。
The Haidai region, which lies in the lower Yellow and Huai River Valley, was mainly a millet planting dry farming area in the early Neolithic period.
地处黄淮下游的海岱地区，新石器时代偏早时期是以种植粟类作物为主的旱作农业区。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which no irrigation water resources.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
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