Applying organic amendment enriches nutrient status of municipal solid waste compost and its application enhances tuber yield and nutrient concentrations of potato
作者机构：Department of Soil ScienceFaculty of AgricultureBangladesh Agricultural UniversityMymensingh2202Bangladesh Bangladesh Agricultural Research InstituteJoydebpurBangladesh
出 版 物：《Waste Disposal and Sustainable Energy》 (废弃物处置与可持续能源（英文）)
年 卷 期：2023年第5卷第4期
页 面：439-450页
核心收录：
学科分类：090101[农学-作物栽培学与耕作学] 09[农学] 0901[农学-作物学]
基 金：supported by the World Bank(WB)funded Higher Education Quality Enhancement Project(HEQEP)implemented by the University Grants Commission(UGC) Bangladesh
主 题：Mustard oil cake MSW compost Potato Poultry manure Sugarcane press mud
摘 要：Elevated price of chemical fertilizers and poor nutrient content in conventional organic sources such as municipal solid waste(MSW)compost necessitate the production of nutrient enriched compost which could serve as a potential alternative organic fertilizer *** studied three types of amended compost that were prepared by mixing 20%mustard oil cake(MOC)and 30%poultry manure(PM)or cow dung or sugarcane press mud(SPM)with 50%MSW *** viride was inoculated into every type of *** rate of amended or unamended MSW compost application was 10 t ha^(−1).The use of different amendments improved the nutrient level of MSW compost,of which the N increment was remarkable,ranging from 1.14%N(unamended compost)to 2.9%–3.22%N depending on the types of amendment.A field experiment was conducted to evaluate performances of the amended MSW composts on the yield and nutrient content of potato(variety BARI Alu25).All compost treatments except the sole MSW compost treatment produced significantly higher tuber yields than the sole fertilizer *** press mud based MSW compost+fertilizer treatment produced the highest tuber yield of 31.6 t ha^(−1)(65%increase over 100%fertilizers and 57%increase over 100%compost treatment).The tuber N concentration varied from 0.128%to 0.594%,P from 0.018%to 0.035%,K from 0.213%to 0.313%and S from 0.020%to 0.053%,with the highest result recorded with press mud+fertilizer *** use of amended composts had residual effects on soil N,P,K and S ***,the treatment containing 50%fertilizer+50%compost mixture(MSW:MOC:SPM in a ratio of 5:2:3)performed the best followed by PM amended *** is concluded that integrated use of 10 t ha^(−1) organic amended MSW compost with chemical fertilizers can ensure higher crop yield,nutrient content and sustained soil fertility in nutrient-deficient sub-tropical soil.
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