Sodium lignosulfonate is used as a plant growth regulator
Sodium Lignonsulphonate :
Lignin can be oxidized and degraded by dilute nitric acid and neutralized by ammonia water to produce o-quinone plant growth hormone. This hormone has a significant effect on promoting the root growth of plant seedlings and increasing the survival rate of transplanting. Make the leaves of the plant more green, leaves larger; It had early ripening effect on rice. In rice, wheat, cotton, tea and bletilla striata. It is a plant growth hormone that is cheap to produce and not chemically synthesized.
Sodium lignoate is a dark brown crystalline particle with metallic luster, easily soluble in water. After many years, multiple points of repeated tests proved that sodium lignoate has a significant growth promotion effect on plants, significantly improve the germination rate of plants, enhance plant photosynthesis, improve plant stress resistance, has the effect of increasing production and improving quality. Field experiments showed that sodium lignoate could increase wheat yield by 13.73%, rice yield by 131%, soybean yield by 17.67% and cotton yield by 9%~19%.
If the roots of spruce and pine seedlings were soaked with very dilute lignin solution (10-4%-10-3%) for 15h, and compared with the samples soaked in warm water, the survival rates of the first year after transplantation were increased by 6%-12% and 11%-19%, respectively, and the survival rates of the second year were increased by 20%-40% and 23%-25%, respectively. The height of lignin increased 1.5~2 times and 1.22 times compared with the control group, and the root dry weight increased 1.34~2.34 times and 2.18 times, respectively, which also proved that lignin had a certain stimulating effect on plant growth
| NO | Index items | Standard value | Test Results |
| 1 | Appearance | Brown powder | Meets the requirement |
| 2 | PH Value(1% soluble) | 7-9 | 8.8 |
| 3 | Dry matter | 93%min | 93.50 |
| 3 | Moisture | 7.0%max | 6.5 |
| 4 | lignosulphonate | 60%min | 61.40 |
| 5 | Total reducing matter | 4.0% max | 2.3 |
| 6 | Inorganic salt (Na₂SO₄) | 2.0%max | 0.5 |
| 7 | Water insoluble matter | 3.0%max | 1.78 |
| 8 | Calcium Magnesium General quantity | 0.5%max | 0.25 |
| 9 | Viscosity(20% aqueous solution 18-20℃) | 7-10 | 8.7 |
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