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。

youdao

Dry farming ,irrigation farming,and the cattle and sheep herding are the main cativities 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。

youdao

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。

youdao

The song says we do not want bombs or war, we want irrigation for farming and seeds to plant in the earth.

VOA: standard.2010.02.25

Because much of the loss to insects and diseases occurs after the plants are fully grown, the use of genetically engineered varieties that have higher post-harvest yields means that the farming (and irrigation) of fewer plants can produce the same total amount of food.

FORBES: Move up http://i.forbesimg.com t Move down

But human factors have also played their part, with over-grazing, over-farming, misuse of irrigation and the unsustainable demands of a growing population all contributing to environmental degradation.

CNN: Growing deserts 'a global problem'

He says mismanagement of the antiquated irrigation system has made efficient farming much more difficult.

CNN: The driest season: Global drought causes major worries