【单选题】无土栽培是现代农业的一项新技术,其营养液是多种化合物的混合溶液,含有植物生长所需的营养元素。某种植物进行无土栽培时,需含氮、钾等元素的中性或弱酸性营养液,下列能用来配制营养液的一组化合物是:[ ]
更多“植物生长延缓剂有哪些种类和作用?”相关的问题 第1题 Your company manages the stock of various advertising articles on a quantity and valu e basis.In the future, you want to analyze the value of these advertising articles.Unfortunately, the articles have been created with different material ...