World commerce was the chief compelling force in bringing about this change from public to private ownership 加以土地越来越集中，耕作方式又十分落后，自然加深了农业人口过剩的危机。
Others move because of climate changes or poor farming methods which often result in deforestation and flooding 其他人迁出是由于气候的改变和不良的耕作方式，这通常会导致乱砍森林和洪灾。
Effects of different tillage on rhizosphere and non - rhizosphere soil enzyme activity of winter wheat at different developing stages 不同耕作方式对冬小麦生育期根际土及非根际土土壤酶活性的影响
They ' re nomad cultivators , never replenishing the soil . when they ' ve milked the land dry they move on somewhere else 他们采用的是游牧型的耕作方式，从不给土壤加点肥，一旦把土地的肥力抽干了，就往别处迁移。
If all the farmers in the world practiced no - till agriculture rather than conventional plowing , they would contribute a wedge 如果世界上所有的农民都实行免耕农业，而不是旧有的耕作方式，就能贡献出一块楔形。
The first nt began in primitive society . it was a culture mode adopted under the condition of low productivity and poor tools 最早的免耕是在原始社会，那是在生产力极为低下、生产工具极为落后的情况下而被迫采取的一种耕作方式。
Agroforestry a system of cultivation common in many parts of the tropics , especially in rainforest regions , in which forestry and arable farming are mixed 农业林学：在许多热带地区特别是热带雨林地区的一种耕作方式，它混合了林业和种植业。
I understand that this mode of farming is still very much in practice on the mainland , despite the introduction of mechanisation in recent years , along with the rapid modernisation of the mainland economy 辛劳地翻土，农夫赤脚在后面鞭策的情景。内地经济迅速现代化，农田已大量引入自动化操作，但不少地方仍继续沿用传统的耕作方式。
But anthony trewavas , a biochemist at the university of edinburgh , counters that organic farming actually requires more energy per tonne of food produced , because yields are lower and weeds are kept at bay by ploughing 但是爱丁堡大学的安施欧尼.崔瓦拉斯反对说，采用有机耕作方式每吨粮食实际上需要更多能源，因为产出更低而且耕作过程中还要拔除杂草。
