2016-05-04
703次
近些年来，无土栽培A字架式基质栽培使得基质栽培立体化种植得以实现，可根据种苗的大小调节栽培间距，实现“小苗密布，大苗均植”的目的，采收、定值、管道清洗、杀菌消毒均可以进行单管道作业，空间利用率可提升2-3倍。这种栽培模式适用于大部分瓜果蔬菜。
A字基质无土栽培的栽培基质要具备透气性良好、保水性强的特点，一般采用草炭土和蛭石按照一定比例混合后作为栽培基质，具有保温保湿和缓解肥料的作用，同时也提供了丰富的有机肥料。由于栽培基质具有良好的透气性而且质量很轻，因此植物的根部有氧呼吸好，不会出现欧根现象，并且植物生长旺盛，产量高。
A字基质无土栽培采用的是自动循环供水系统，把配比好的营养液按照合适的时间段供应到设施上，保证植物的生长所需要的水分和养分。在保证植物的水分和养分供给充足的前提下不浪费水和肥料，而且不会出现因为水分和肥料过多引起的烂根和烧苗的现象。
经过长时间的实践证明，A字基质无土栽培增加了种植密度，提高了产量，而且占地面积小，提高了空间利用率，管理简单，维护方便，是人们进行蔬菜栽培很好的选择之一。
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