Municipal Soil Waste Compost and Biochar Effects on Soil Properties and Wheat Grain Yield

Application of different biosoilds in agriculture is considered as an important strategy to promote soil quality and plant yield. In order to study the effects of municipal solid waste compost (MSW) [in 2% and 4% (w/w) levels] and biochar (BC) [in 0.2% and 0.8% (w/w) levels] on soil properties and wheat grain yield, this research was conducted as a factorial arrangement based on randomized complete block design. The results showed that in most cases the soil pH, electrical conductivity (EC), organic carbon, N, P and K increased affected by different treatments, especially in concurrent application of MSW and BC. The soil micronutrients concentration was significantly increased by biosolids, BC and MSW application. For micronutrients, co-application of BC and MSW was superior than applying them individually. The grain yield was significantly promoted by the treatments, especially under the co-application of MSW and BC treatments. Generally, although the concurrent application of the highest rate of BC (0.8%) and MSW (4%) might be suggested as an efficient procedure to promote the soil fertility and wheat grain yield, their levels of application for each plant needs to be carefully studied under field conditions.