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Effects of vermicomposts obtained from different mixture rates of same feedstocks on wheat growth and N, P, K nutrition grown on different soils

Erdal İ., Gültekin M.

Infrastruktura i Ekologia Terenów Wiejskich

2017

nr II/2

715--726

In this study, it was aimed to determine the effects of vermicomposts (VC) obtained from different mixture rates of same feedstocks on growth and N, P, K nutrition of wheat plant grown on alkaline and acidic soils. For this, 0, 5, 10 and 20 t ha-1 vermicomposts were mixed to the 2 kg soil containing pots. Study was conducted as greenhouse experiment for 3 months. In alkaline soil, VC differences significantly affected plant dry weight (DW) and N, P and K concentrations. Application doses significantly affected plant DW, P and K concentrations. Also, VC x dose interaction had a significant effected on plant P and K concentrations. In acidic soil, application doses affected all parameters significantly. At the same time, vermicompost types had a significant effect on P and K. Interaction of VC x dose also had a significantly effect on N, P, and K concentrations of wheat. Effect types and degree of VC were different on alkaline and acidic soils. It was also seemed that the effect of VC on plant N, P and K nutrition was higher in acidic soil than that in alkaline soil.

Contents of Cadmium, .-Lead and Nickel at Different Development Stages of Selected Miscanthus Genotypes

Kalembasa D., Malinowska E.

Ecological Chemistry and Engineering. A

2009

Vol. 16, nr 4

349-356

Bioaccumulation of three heavy metals (Cd, Pb, and Ni) at the second cultivation year of Miscanthus sinenis (2 diploid genotypes) and Miscanthus sinensis x gigantheus (3 triploid genotypes) was examined on objects with no fertilization and with NPK nutrition in five dates. Higher mean contents of analyzed heavy metals in triploid than diploid genotypes biomass was found. Mineral nutrition significantly affected the cadmium level in diploid genotypes biomass as well as nickel in all studied genotypes. The highest cadmium concentration was recorded in Miscanthus biomass at the beginning of June, lead - at the beginning of September and October, whereas nickel - at the beginning of July.

Badano bioakumulację trzech metali ciężkich (Cd, Pb i Ni) w drugim roku uprawy trawy Miscanthus sinenis (2 genotypy diploidalne) i Miscanthus sinemis x gigantheus (3 genotypy triploidalne) na obiektach bez nawożenia i nawożonych mineralnie NPK, w pięciu terminach. Stwierdzono (średnio) większą zawartość analizowanych metali ciężkich w biomasie genotypów triploidalnych niż diploidalnych. Nawożenie mineralne znacznie wpłynęło na zawartość kadmu w biomasie genotypów diploidalnych oraz niklu we wszystkich badanych genotypach. Stwierdzono największą zawartość Cd w biomasie miskanta w pierwszej dekadzie czerwca, Pb w pierwszej dekadzie września i października, a Ni w pierwszej dekadzie lipca.