The relationship between the soil water content from the jointing of wheat to the heading and Numbers of grains of every ear of wheat is the closest in the dry farming regions of the Loess Plateau.
在黄土高原旱作区，小麦拔节至抽穗期土壤贮水量与穗粒数，灌浆至乳熟期土壤贮水量与穗粒重的关系最为密切。
These regions seem too dry to be suitable for farming.
这些地区看来太干燥而不适合农业。
As aquifers are depleted and irrigation Wells go dry, farmers either revert to low-yield dryland farming or, in the more arid regions, abandon farming altogether.
随着蓄水层的枯竭和灌溉井的干涸，农民不得不改种低产的旱地作物，在更为干旱的地区，他们干脆放弃耕作。
Dry farming; dryland farming a system of producing crops in arid and semiarid regions without the use of irrigation. Frequently alternate years of fallow and cropping are practiced.
旱地耕作法指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。常常采用一年休耕、一年种植的方法。
Dry farming; dryland farming: a system of producing crops in arid and semiarid regions without the use of irrigation.
旱地耕作法：指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。
China is divided by the Qingling mountain into two regions in farming. The north can only support dry farming, the south is good for paddy-rice and economic crops.
秦岭将中国分为南北两个农业区。北方只能栽培旱地作物，南方适合水稻和经济作物。
China is divided by the Qingling mountain into two regions in farming. The north can only support dry farming, the south is good for paddy-rice and economic crops.
秦岭将中国分为南北两个农业区。北方只能栽培旱地作物，南方适合水稻和经济作物。
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