Potassium Humate NPK Compound Organic Fertilizer

Potassium humate is the potassium salt of humic acid. It is manufactured commercially by alkaline extraction of brown coal (lignite) Leonardite to be used mainly as a soil conditioner. The extraction is performed in water with the addition of potassium hydroxide (KOH), sequestering agents and hydrotropic surfactants. Heat is used to increase the solubility of humic acids and hence more potassium humate can be extracted. The resulting liquid is dried to produce the amorphous crystalline like product which can then be added as a granule to fertiliser. The potassium humate granules by way of chemical extraction lose their hydrophobic properties and are now soluble. Depending on the source material product quality varies. High quality oxidised lignite (brown coal), usually referred to as leonardite, is the best source material for extraction of large quantities of potassium humate. The less oxidised the coal the less potassium humate extracted. Sources low in ash produce the best quality. Less oxidised brown coal contains a higher proportion of the insoluble humin fraction and along with peat which is lower in humic acid content and usually high in ash content requires separation by filtration or centrifugation to remove ash, humin. Peat is also high in non humified organic matter that needs to be reduced to produce a high quality product. The benefit of peat is that it is usually 2-3 times higher in fulvic acid content, which are the low molecular weight fractions of humic acid that are high in oxygen containing functional groups and soluble at a low pH of <1.

Hebei nongwei biological science and technology co.,ltd. was establish in 2008. The factory is 

located in Guangzong hebei, with its area around 66,000 square meters.
At present we have about 380 employees. Among which 30 employees are in charge of manage- ment and technical. There are 4 senior soil scientists from the provincial academy of agricultural sciences, the doctoral candidates are 5 people, 8 people have senior professional titles, 2 people are agricultural economic analyst and professional agricultural service personnel are 116 people.
Our main product include biological organic fertilizer, yeast chelated fertilizer, water 
soluble fertilizer, NPK fertilizer, super absorbent polymer for agriculture etc. Meanwhile we 
obtain yeast chelate technology national invention patent.

Our vision
Best price and top quality
Improve the usability and productivity
lead innovation advanced and practical technology
Make our life and industry more health

If you are interested our biological organic fertilizer, don`t hesitate to contact us please and sincerely welcome to visit our factory anytime.

1) Are you the manufacturer or the trading company?

We are the manufacturer and have the factory with the area of about 66,000 m2,. We also have our own export rights.

2) What`s the payment terms?

Usually 40% payment as deposit before production, 60% balance before delivery by T/T..L/C also acceptable.

3) How about the sample?

The sample is free, the customer bear the transportation cost.