Effect of urban solid waste compost and carbonized rice rusk on production of grown pot chrysanthemum

Abstract

An experiment was carried out under greenhouse conditions with the objective of evaluating the effects; of urban solid waste compost and of carbonized rice rusk (CAC) as substrate for pot cultivation of chrysanthemum. The best combination of different amounts of the components was also determined. The treatments included soil, sand and conditioner in a volume proportion of 2:1:4. The conditioner included carbonized. rice: rusk and urban solid waste compost, combined in four levels: TI = 100% of CAC; T2 = 66.66% of CAC + 33.33% of CLU; T3 = 33.33%of CAC + 66.66% of CLU, and T4 = 100% of CLU. The varietics Puritan and Amarelo São Paulo were used. In high concentration of CLU and low CAC there was a decrease in fresh and dry matter production of leaves and inflorescences. In high concentration of CLU and low CAC there was a decrease in fresh and dry matter production of leaves and inflorescences as well as decrease in height, diameter and number of inflorescences. In high concentrations of CLU and low CAC the variety Puritan performed better than Amarelo São Paulo. The results indicate that 30% of CLU and 70% of CAC, could be recorrimended for substrate of Amarelo São Paulo, while for the variety Puritan it could be recommended 70% of CLU and 30% of CAC.