What does HAK mean in chemical fertilizer?

Chinese alias: potassium humate; potassium humate

Potassium humate is a heterogeneous aromatic hydroxycarboxylic acid salt, which is a black particle or a powdery solid. It is a carefully selected product extracted from lignite by KOH liquid reaction. It is alkaline when dissolved in water and contains active groups such as carboxyl group and phenolic hydroxyl group.

Potassium humate is an efficient organic potassium fertilizer, because humic acid is a bioactive preparation, which can increase the content of available potassium in soil, reduce the loss and fixation of potassium, increase the absorption and utilization rate of potassium by crops, and also have the functions of improving soil, promoting crop growth, improving crop stress resistance, improving crop quality and protecting agricultural ecological environment. It can be mixed with urea, phosphate fertilizer, potash fertilizer and trace elements. Can be made into high-efficiency multifunctional compound fertilizer;

Extended data:

Humic acid and its products are widely used.

In agriculture, humic acid fertilizer combined with nitrogen, phosphorus, potassium and other elements can improve fertilizer efficiency, improve soil, stimulate crop growth and improve the quality of agricultural products. Nitrohumic acid can be used as an acid regulator for rice seedling raising;

Magnesium humate, zinc humate and urea iron humate have good effects on supplementing magnesium deficiency in soil, zinc deficiency in corn and iron deficiency in fruit trees respectively. Humic acid mixed with herbicides, atrazine and other pesticides can improve the efficacy and inhibit the residual toxicity; Sodium humate is effective in treating apple tree rot.

In animal husbandry, sodium humate is used to stop the bleeding of pilose antler, and nitrohumic acid urea compound is also effective as a feed additive for cattle.

In industry, sodium humate is used to adjust ceramic slurry; Anti-scaling of low pressure boilers and locomotive boilers; Humic acid ion exchanger is used to treat wastewater containing heavy metals; Sulfonated sodium humate is used as cement water reducer; Humic acid products are also used as oil drilling mud treatment agents (see oilfield chemicals); The purified humic acid is used as the negative expansion agent of lead storage battery.

Baidu encyclopedia-potassium humate