basicosta基内脊,基缘basicadj.基本的；基础的；初级的；含硅少的n.基础；根本；[计]BASIC语言basic ironic acotate[机] 碱式醋酸铁basic block protocol基本码组协议Basic People's Courtbasic incidence rate基础发病率basic self-dealing自我交易Basic Contradictions矛盾basic representation基本表达式,基本表示basic music teaching基础音乐教育basic social capital基础性社会资本basic pitch diameter基本中径

1. What shall we grow in this alkaline soil?
   我们应该在碱性土壤里种什么？
2. In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.
   在酸碱性土壤中，磷主要以植物难以吸收利用的难溶性二价或三价阳离子的形式存在。