旱地农业生产的首要限制因子是水分。
Moisture is the primary limitation factor for production of dry farming.
这主要将取决于旱地农业集约化的成功。
The prevailing scenario will depend on the success of upland agricultural intensification.
从1950年代起，旱地农业出现了重大的技术变化。
Since 1950's, there have been great changes in dry land agriculture techniques.
旱地农业生产的主要限制因素是水分亏缺和土壤贫瘠。
Water deficit and soil infertile is the main limited factor in arid agricultural production.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming, irrigation farming, and the cattle and sheep herding are the main activities of the Great Plains of the American West.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming ,irrigation farming,and the cattle and sheep herding are the main cativities of the Great Plains of the American West.
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。
And thereupon a scientific basis for exploiting the natural productivity potential of the dry farming in the region was proposed.
旱地农业，浇灌农业和畜牧业是美国西部大平原地域的首要勾当。
Dry farming, irrigation farming, and the cattle and sheep herding are the main ativities of the Great Plains of the American West.
充分提高农田降水利用效率是旱地农业中有限水高效利用的基础。
Fully raising rainfall use efficiency of farm-land is the basis of high efficient utilization to limited water in dry-land farming.
旱地农业，灌溉农业和牛羊牧业是美国西部大平原地区的主要活动。
Dry farming irrigation farming and the cattle and sheep herding are the main activities of the great plains of the american west.
我国南方水资源相对丰富，因而对南方旱地农业保护性耕作研究较少。
Water is resourceful in the south of our country, so we lack the researches about agriculture conservation of the southern dry land.
结合农业生态系统特点对未来旱地农业水、肥效应的研究方向进行了展望。
The development trend of the researches on the water-fertilizer effect on dry land farmland in light of the characteristics of agro-ecosystem was also prospected.
黄土高原是中国旱地农业的重要实施区域，降水是其农业生产的主要水分来源。
Loess plateau is the important implement region of dry land agriculture in our country, and the water source of agriculture production mainly depends on precipitation.
旱地农业在今后节水农业中将发挥更大作用，它必将和节水灌溉紧密结合，在西部开发的伟业中建奇功。
Dry land agriculture will bring into play more actions, and it will be combined more tightness with water saving irrigation, which will produce great successes in exploitation of the Western.
因此，教育广大农民群众认识到改变传统的耕作方式，推广保护性耕作的重要性，旱地农业综合生产力将有明显的提高。
Hence, it is importance that educating farmers to apply the conservative farming system, which enables to obviously improve the integrated production capacity of the region.
因此，教育广大农民群众认识到改变传统的耕作方式，推广保护性耕作的重要性，旱地农业综合生产力将有明显的提高。
Hence, it is importance that educating farmers to apply the conservative farming system, which enables to obviously improve the integrated production capacity of the region.
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