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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