Comparison on Different Qualities of Compost on Possible Efficiencies of Nutrient Accumulation, Heavy Metal Absorption and Growth by Chrysanthemum

Abstract

Two composts; Compost A (CA) was immature compost and Compost B (CB) was commercial compost, were aim of this study to compare the appropriate of nutrient and heavy metal concentrations in soil, including of amount of heavy metal uptake by chrysanthemum, which were evaluated their characteristics on mixed with commercial soil at 10% and 25% (w/w), respectively. We found that, the highest of essential nutrients and beneficial heavy metal concentrations after combinations were increased in all rates on using of the favorable compost as soil amendment, along with significantly increasing of beneficial heavy metal uptake more than using of immature compost especially in Fe and Mn. Moreover, immature compost at 25% could be used as alternative fertilizer level for cultivation of chrysanthemum due to increased biomass as better than in applying at 10%, and the mature compost was the best improved to the chrysanthemum growth when was applied at 25% and 10% respectively, but found that high risk to develop root growth and to unbalance nutrient of applied immature compost. In my opinion should use at low rate of immature compost to avoid the effecting in the growing period of plant. Furthermore at low rate (10%) of mature compost could be also increased biomass as same as in high rate.