Assessment of the compost made of poultry post-slaughter waste on a background of commercial preparations applying the phytotoxkit analysis

One of the problems in the development of the agro-food industry is the production of enormous quantities of organic waste. In recent years, in order to minimize the negative impact of waste on the environment, emphasis is put on their recycling. Organic matter derived from poultry industry waste can be processed into other products, including compost. The aim of the study was to evaluate the phytoremediation of selected plant species on the compost substrate obtained from the poultry waste as compared to other commercial composts available on the market. Analyses used the Phytotoxkit containing three test species: sorghum (Sorghum saccharatum), bittercress (Lepidium sativum) and white mustard (Sinapis alba). The test plants were placed on four different substrates: control soil, poultry compost, vermicompost and Compo Sana®. Phyto-reactivity of plants tested on compost prepared from poultry waste on a background of other commercial products was dependent on the plant species and the type of substrate. Poultry waste compost exhibited equally good nutritional properties in the composition of macro and micronutrients, which determined the growth and development of seedlings. It particularly refers to the stimulation of the growth of underground parts of mustard and bittercress, respectively 65% and 86% of the control value, and the aboveground parts, that were higher by 46% and 38%, respectively.