Field study of municipal solid waste compost and nitrogen effects on quantitative and qualitative parameters of cotton and chemical properties of soil

In a field study, the effects of different amounts of municipal solid waste compost and nitrogen on cotton characteristics and chemical properties of soil were studied. The statistical design was split plot. Different levels of municipal solid waste compost (0, 20 and 40 t ha-1) were considered as the main factor and different levels of nitrogen (0, 100 and 200 kg ha-1) were considered as sub plots. The results of the experiment showed that the effects of municipal solid waste compost, the effect of nitrogen and their interaction on cotton yield and qualitative properties of the fibers are significant. Municipal solid waste compost and nitrogen, each alone, increased yield, but the highest yield was 4787 kg ha-1 from municipal solid waste compost consumption of 40 tons per hectare with 100 kg / ha nitrogen per hectare. Consumption of more nitrogen at this level of compost did not have a significant effect on yield. Consumption of municipal solid waste compost had a significant effect on the chemical properties of soil, so that, with the use of municipal solid waste compost waste compost, soil reaction (pH) decreased significantly and the values of electrical conductivity, organic carbon, nitrate, available iron and zinc showed a significant increase.