dry-farming condition旱作条件
dry-farming region东部旱区
dry-farming旱作条件
dry land farming region旱农区域
dry-farming area旱农区域
dry field farming旱田农作
dry land farming旱地耕耘法
dry-farming rice水稻受旱
dry y farming旱地耕作
N（名词） a system of growing crops in arid or semiarid regions without artificial irrigation, by reducing evaporation and by special methods of tillage 旱作农业