1. Effects of Protein Hydrolysate on Soil Fertility and Heavy-Metal Accumulation in Sinapis alba L.
- Author
-
Chwil, Stanisław, Matraszek, Renata, Kozłowska-Strawska, Jolanta, Chwil, Mirosława, and Zapalski, Przemysław
- Subjects
PROTEIN hydrolysates ,SOIL fertility ,WHITE mustard ,HEAVY metals ,FERTILIZERS ,CADMIUM ,SOIL composition - Abstract
The aim of this study was to evaluate the usefulness of protein hydrolysate (Hemozym) for fertilization purposes used in unpolluted and cadmium-polluted soil. Three levels of Hemozym (0, 0.1, and 0.2 cm3 kg−1dry weight [DW] soil) and cadmium (Cd) rate 5 mg kg−1DW soil were used. The fertilizer value of Hemozym was evaluated based on characteristics of the sorptive complex and soil respiratory activity as well as based on the soil and plant heavy-metal content. Increased soil fertility due to the beneficial effect of Hemozym on the improvement in the physicochemical properties of the soil and its microbial activity. However, they do not allow us to determine unambiguously the effect of this fertilizer on solubility vs. binding of heavy metals that occur naturally in the soil (zinc [Zn], copper [Cu], and lead [Pb]) and of intentionally introduced Cd, in spite of an indicative tendency towards the conversion of metals into poorly soluble forms. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF