In principle, the use of urea, diammonium phosphate, and potassium fertilizers as their fertilizers for one-time fertilization is not recommended. The reason is: the fertilizer used for one-time fertilization must contain slow-release agents, and require slow-release fertilizer with good effect, otherwise it is prone to early burning seedlings, leggy, and later de-fertilization phenomenon. If farmers themselves are not aware of the proportion of slow-release urea in the process of compounding fertilizers, it is difficult for the mixed fertilizers to meet the requirements of slow and controlled release and meet the requirements for crop growth and development. Therefore, farmers are not encouraged to mix fertilizers for one-time fertilization.
Greenhouse Film Electric Roll Up
The Greenhouse Film Manual Roll Up Unit can roll up a length of 60-80 meter, running stably with fine out side looking and long time of usage. The inside drive gears are made of high quality steel with fine workmanship, and what is more, there is lubricating bearing assembled on the out put and input shaft. At the meantime, there is also a group of reverse gear added to it. All these make the unit to be light and easy for
Greenhouse Film Electric Roll Up,Roll Up Curtain Greenhouse,Greenhouse Film Vent Roller,Greenhouse Roll Up Motor
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