Soil is very important for cultivating high-quality and strong seedlings. After properly prepared bed soil with excellent physical and chemical properties is called as culture soil, preparing adequate soil for cultivation is the basis for cultivating strong seedlings. High-quality bed soil should be soil loose, fertile, water permeability is good, after watering is not compacted, not crack when dry, not scattered when planting; containing at least 5% or more, but also have sufficient available nitrogen, phosphorus Potassium. Bed soil is generally made of garden soil, prepared by decomposed manure (pig or calf manure, etc.) and available fertilizers. Sometimes add a small amount of lime, superphosphate, etc. to regulate the pH and increase nutrients. Vegetable garden soil should be as far as possible not planted solanaceous fruit, melon vegetables and potatoes, tobacco, and fields that have not occurred Saccharomyces sclerotiorum. It requires about 200 kg of bed soil per square meter of bed.
Ultraviolet Absorbent&Photoinitiators
Specialized in R&D,manufacturing of Ultraviolet absorbent,photoinitiators , Colorfomers and sensitives of carbonless and therm paper.
Ultraviolet Absorbent,Ultraviolet Photoinitiators,Colorfomers,Sensitives of Carbonless and Therm Paper
Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com