Crop rotation: the successive planting of different crops on the same land to improve soil fertility and help control insects and diseases.

轮作：在同一块土地上连续种植不同的作物以提高土壤肥力并帮助控制昆虫的生长和疾病的蔓延。

youdao

He worried that his crops might be ruined by the beasts, so he would take the bow and arrow with him and scouted around the area between the crop land and the reed bed.

那芦苇地里常常有野兽出没，他担心自己的庄稼被野兽毁坏了，就总是拿着弓箭到庄稼地和芦苇地交界的地方去来回巡视。

youdao

The destruction land structure, the hindrance plant absorption moisture content and the root system grows, affects the crops crop.

破坏土地结构，阻碍植物 吸收水分及根系生长，影响农作物收成。

youdao

Algae at least can be grown, with sufficient engineering, on a large scale that does not require prime crop land in competition with growing food crops (as rules out conventional biofuel strategies beyond grants from governments and the European Union), and there is no demand for freshwater since saline water does even better to promote the growth of certain highly oil-yielding strains.

FORBES: Biofuel From Algae: Different Prognoses