Effects of nutrient enriched municipal solid waste compost on soil fertility, crop yield and nutrient content in brinjal

Composting of municipal solid waste (MSW) is a good option for solid waste recycling, but its use by the farmers is limited because of its very low nutrient status. Aims: The study aimed at nutrient enrichment of marketed MSW compost by using some organic materials and evaluating the influence of nutrient enriched MSW compost on yield and nutrient content of cabbage (Brassica oleracea L.). Place and Duration of Study: MSW compost amendment, field experiment and nutrient analysis were carried out at Bangladesh Agricultural University (BAU), Mymensingh during October 2017 to June 2018. Methodology: We prepared three types of amended compost by mixing 20% mustard oil cake (MOC), and 30% poultry manure (PM) or cow dung (CD) or sugarcane press mud (SPM) with 50% MSW compost. A liquid culture of Trichoderma viride was inoculated to every type of compost. The field experiment was conducted to evaluate the performance of the amended MSW composts on yield and nutrient content of cabbage (cv. Atlas-70), and on soil fertility. The experimental soil was silt loam having 6.7 pH and 2.79% organic matter; according to Soil Taxonomy it belongs to Aeric Haplaquept under the order Inceptisols. Results: Based on the yield and nutrient concentration (N, P, K & S) of cabbage, the treatment containing 50% fertilizers + 50% compost mixture (MSW compost + MOC + SPM in a ratio of 5:2:3) demonstrated the best result followed by poultry manure amended compost. Use of the amended composts had residual effects on soil showing an increased N, P, K & S content. Conclusion: Organic amendment of MSW compost inoculated with Trichoderma is a noble means to increase the nutrient status of marketed MSW compost and improve the soil fertility and crop productivity. The results have significant value in fertilizer management strategies for vegetables cultivation in sub-tropical countries.

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Effects of Municipal Solid Waste Compost, Fertilizers, Rhizobium and Flora on the Nutrient Content and Uptake of Wheat

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v6i1.22039 ◽

2015 ◽

Vol 6 (1) ◽

pp. 47-52

Author(s):

MM Rahman ◽

MS Afroz ◽

JN Ferdoush

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Block Design ◽

Nutrient Content ◽

Exchange Capacity ◽

Growth And Yield ◽

Available Phosphorus ◽

Wheat Grain ◽

Science Field ◽

Municipal Solid Waste Compost

The effect of municipal solid waste compost, fertilizers, Rhizobium and flora on the growth and yield of wheat was studied through a field experiment at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh. The soil was silty loam in texture having pH 6.94, organic matter 1.62%, total nitrogen 0.067%, available phosphorus 10.45 ppm, exchangeable K 0.08 me/100g soil, available sulphur 12.00 ppm and cation exchange capacity 15.0 me/100g soil. There were seven treatments such as T0 = control, T1 = 100% recommended doses of fertilizer (RDF), T2 = 100% RDF + compost @ 3.5 t ha-1, T3 = 100% RDF + compost @ 3.5 t ha-1 + Rhizobium, T4 = 75% RDF + 25% N based compost, T5 = 75% RDF + 25% N based compost + Rhizobium, T6 = 100% RDF + Flora. The experiment was laid out in a Randomized Complete Block Design with three replications. Phosphorus, potassium, sulphur, zinc and boron were applied as basal dose from TSP, MOP, gypsum, zinc sulphate and boric acid @ 30 kg P, 135 kg K, 15 kg S, 2 kg Zn and 1 kg B, respectively. Nitrogen as urea was used @100 kg ha-1 for the respective treatments. For T3 and T5, the seeds were inoculated with Rhizobial strains. The plants were harvested at maturity and the grain and straw yields were recorded. Wheat grain and straw samples were collected and analyzed for N,P,K and S. The nutrient uptake of wheat calculated. Application of municipal solid waste compost, fertilizers, Rhizobium and flora increased the N and S content both in grain and straw of wheat but decreased the P content as compared to control. The K content in wheat straw increased with different treatments but the effect was reverse in case of wheat grain. The N,P,K,and S uptake of wheat grain and straw as well as the total uptake increased significantly with all the treatments over control.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22039 J. Environ. Sci. & Natural Resources, 6(1): 47-52 2013

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