Effects of chemical fertilizer and different organic manures application on soil pH, EC and organic matter content

The experiment was carried out in order to examine the effects of chemical and 3 different organic manures including farmyard manure (FM), chicken manure (CM) and blood meal (BM) on soil pH, EC and soil organic matter (SOM) during three successive cabbage growing seasons, called Autumn 1, Spring and Autumn 2 as well. All applications showed different responses on soil pH, EC and SOM, some of which were found to be statistically significant in the each season. Chemical fertilizer, blood meal (BM) and chicken manure (CM) application gave rise to a decrease in soil pH, whereas farmyard manure (FM) caused soil pH to increase. Soil EC levels were influenced by the applications to some extent and chemical fertilizer brought about the highest soil EC level in the each season. Farmyard manure (FM) application had positive effects on SOM more than the others. As a result, each application reacted differently depending on the seasonal conditions and the treatments containing farmyard manure (FM) and chicken manure (CM) was found more effective, but blood meal (BM) application was recommended being used within a mixture and also small quantities because of having some undesired features such as having bad smell and also application difficulty.