The effects of adding five rates of powdered elemental sulfur (S^sup 0^) or ferrous sulfate (FeSO^sub 4^.7H^sub 2^O) on the acidification process of three alkaline composts prepared with residual vegetable crop biomass (melon, C1; pepper, C2; and zucchini, C3) were investigated. Composts reacted differently to the application of the amendments, the acidification efficiency averaging 43%, 50% and 35% for C1, C2 and C3, respectively. S^sup 0^ was more efficient than FeSO^sub 4^.7H^sub 2^O for lowering the pH, and a saturation-like effect within the range of amendment rates studied was found. The pH decrease reached in the composts varied between 0.24 and 3.03 units. The pH reduction brought ...

Related newspaper, magazine, and journal articles:

;

See all results. Or, try our Advanced Search.

We're searching over:

• 60 million articles
• 3,500 publications