INFLUENCE OF MUNICIPAL SOLID WASTE COMPOST ON YIELD OF TOMATO- APPLIED SOLELY AND IN COMBINATION WITH INORGANIC FERTILIZER WHERE NITROGEN IS THE ONLY VARIABLE FACTOR

Municipal solid waste compost (MSWC) is considered as one of the prominent fertilizers that improve soil health and productivity. To evaluate the effects of MSWC on plant growth, an experiment was conducted by using sole MSWC and with a combination of inorganic fertilizer. The sole MSWC was applied at the rate of 0, 5, 10, 15 t ha-1. In case of MSWC with inorganic fertilizer, MSWC was applied equally (5 t ha-1) and phosphorus and potassium fertilizers were applied at 100 and 50 kg ha-1, respectively. Nitrogen was the only variable nutrient. Nitrogen was applied three different doses (25, 50 and 100 kg ha-1) along with control. Tomato (Solanum lycopersicum L.) was grown as experimental plant and maximum yield (72.7±6.3 t ha-1) of tomato was found when sole MSWC was applied at 15 t ha-1 and was significantly higher than other treatments. When MSWC was applied in combination with inorganic fertilizer, the combination 5 t ha-1 MSWC +100 kg N ha-1 +100 kg TSP ha-1 +50 kg MoP ha-1 produced maximum yield (79.0±3.2 t ha-1). So, application of sole MSWC in soil enhanced the productivity of soil and side by side, MSWC in combination with inorganic fertilizer reduced the volume of MSWC application.

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Improvement of Soil Quality Parameters by Municipal Solid Waste Compost Application in Clay-Loam Soil

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v8i3.603-609.3062 ◽

2020 ◽

Vol 8 (3) ◽

pp. 603

Author(s):

Orhan Yüksel ◽

Yasemin Kavdır

Keyword(s):

Hydraulic Conductivity ◽

Municipal Solid Waste ◽

Solid Waste ◽

Bulk Density ◽

Soil Samples ◽

Experimental Plant ◽

Clay Loam ◽

Undisturbed Soil ◽

Municipal Solid Waste Compost ◽

Experimental Plots

Organic matter (OM) content of the soils should be improved for sustainable productions. Municipal solid waste compost (MSWC) is an organic material used in several countries to improve soil OM contents. This study was conducted to determine potential use of MSWC as soil amendment. Field experiments were conducted for two years with single MSWC treatments. Experiments were conducted on 18 plots in randomized complete blocks design with 3 replications. Six different MSWC doses (0, 40, 80, 120, 160 and 200 t ha-1) were applied to experimental plots. Compost doses were calculated in dry weight basis, applied to 21 m2 plots and sunflower was sown as the experimental plant of the study. Following the sunflower harvest, disturbed and undisturbed soil samples were taken from the experimental plots and soil samples were subjected to various analyses. Applied MSWC doses significantly increased soil OM contents, electrical conductivity (EC) and cation exchange capacity (CEC), aggregate stability (AS) and saturated hydraulic conductivity (Ksat) and reduced soil bulk density (BD). Effects of MSWC on soil pH were not found to be significant. Effects of MSWC treatments were more remarkable with increasing doses. MSWC treatments increased soil OM contents about 3 folds and increased CEC by about 25%. MSWC treatments significantly increased salt contents of the soils. Such increases were found to be significant at 1% level in the first year and 5% level in the second year. Increasing OM contents also increase soil aggregation, thus reduced bulk density and increased hydraulic conductivity. Correlation analysis revealed significant correlations between OM and AS. Present findings revealed that MSWC positively influenced physical and chemical characteristics of clay-loam soils of arid and arid climates, but salt contents should carefully be monitored in repetitive uses.

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