| abstract |
Soil conditioner, comprising a lignin fraction and at least one soil improver, characterized in that: - said lignin fraction comprises fragments having a weight average molecular weight of up to 20,000 Daltons, as measured by chromatography molecular exclusion, said fragments comprising up to 111 phenylpropane units on average by weight, and - said soil improver is a carbonate, hydrogen carbonate, oxide or hydroxide of potassium, sodium, lithium, calcium, magnesium or ammonium, or a mixture of the themselves. |