Sugar cane was the only crop shown to have a favourable balance of greenhouse gas savings and emissions, because it requires less fertilizer than other biofuel crops.
甘蔗是唯一一种表现出可以让温室气体排放净减少的作物,因为它需要的化肥少于其他生物燃料作物。
2
Potassium(K) balance in purple soil rice field ecosystem under rice-wheat rotation were studied on the National Purple Soil Fertility and Fertilizer Efficiency Monitored Base.
在国家紫色土肥力与肥料效益监测基地上,研究了稻麦轮作制度下紫色土稻田生态系统中钾素的平衡状况。
3
Researches on water and fertilizer co efficiency of forestry are reviewed briefly, and the important latest achievements about the balance of water and fertilizer are stated.