Effect of humic substances on nutrient uptake by herbage and on production and nutritive value of herbage from sown grass pastures
Verlinden,G.; Coussens,T.; Vliegher,A.de; Baert,G.; Haesaert,G.
Grass And Forage Science: 1, 133-144
ISSN/ISBN: 0142-5242 DOI: 10.1111/j.1365-2494.2009.00726.x
The effect of humic substances on the nutrient uptake, herbage production and nutritive value of herbage from sown grass pastures was studied in six field experiments. Commercial humic substances were applied in combination with mineral fertilizer or slurry, either as a solution (HF liquid; 8.3 kg humic substances ha-1) or incorporated into the mineral fertilizer (HF incorporated; 3.6 to 6.4 kg humic substances ha-1).