Potassium Lignosulfonate

Potassium lignosulfonate (KLS), as a by-product of pulping processes, can be applied to agricultural fields as a soil conditioner and chelate fertilizer.Potassium Lignosulfonate is yellow brown powder soluble in water.Usually used in agriculture for spray or drip irrigation.

Main Specification

NamePotassium lignosulfonate
Product CodeGAC-KLS
AppearanceYellow Brown powder
PH value4-7
Dry maters95%min
Total reducing matter7%min
Density0. 532g/cm3


1.As plant growth regulator to promote plants growth healthily.Increase harvest and yield ,improve fruits taste .Prolong the storage time of fruits.

2.Potassium lignosulfonate the washing remediation of soil contaminated with lead and copper.

3. Under optimum conditions KLS concentration of 8%, pH of 5.24 and 6 h duration, the removal ratios for the simulated and mining area soils in the batch experiment were 67.40% and 52.87% respectively, for Pb and 73.42% and 55.20% respectively, for Cu.

4.Removal efficiencies of Pb and Cu increased with solution volume and that the removal ratios of the simulated and mining area soils were 36.46% and 20.31%, respectively, for Pb and 39.74% and 22.76%, respectively, for Cu.

5.Potassium Lignosulfonate can reduce the ratio of acid-soluble and reducible fractions, which may have the most potential hazardous and poisonous for plants. Cation exchange capacity (CEC) and pH of soil were all stable after washing.

6.However, the organic matter and available K, N, and P in the treated soil, which are important factors for plant growth increased significantly. This study showed that KLS can remove Pb and Cu from soil, while improve nutrient (ammonium nitrogen, available phosphorus and available potassium) levels of soil.