Agricultural soils are the ultimate recipient and depository of most applied foliar and soil pesticides.喷撒于叶面和用于土壤的农药大多以农业土壤为其最终受体和贮存场所.It can be as base fertilizer , after fertilizer and foliar fertilizer.可以用做底肥, 也可以用做追...
植物的肺就是其叶片上微细的气孔。A plant's lungs are the microscopic pores in its leaves.在干旱的条件下, 叶子的膨压减少而气孔关闭.Under conditions of water stress, leaf turgor decreases and stomata close.他使橡胶塞牢固地塞进盖上的排气孔.He presses the rubber stopper ...