Please discuss the advantages and disadvantages of deep flow technique. 请谈谈深液流水培技术的特征及其等优缺点。
Please interpret the possible reasons of root-rot of plants in deep flow technique. 在深液流水培系统中,发现植物根系腐烂现象,试解释可能造成此现象的原因。
How to manage the nutrient solution scientifically and standardized while planting tomato by means of deep flow technique or sand culture? 采用深液流或沙培进行番茄生产时,如何对营养液进行科学和规范化管理?
Please compare the advantages and disadvantages of deep flow technique ( DFT ) and Nutrient film technique while there are used in South China. 试比较深液流技术与营养液膜技术在我国南方实际生产应用上的优缺点。
The configuration, facture and culture technique of a minitype pipe DFT ( deep flow technique ) equipment was introduced. 介绍了小型化深液流管道水培系统的结构、制作方法、管理技术及栽培效果。