Evaluating the influence of enriched urban compost and wastes on plant nutrient uptake

Abstract

Enriched compost, infused with beneficial microorganisms, enhances soil quality for maize cultivation. Bacteria, fungi, and other microbes in the compost form symbiotic relationships with plant roots, breaking down organic matter and releasing essential nutrients. Symbiotic interactions aid in nitrogen fixation, optimizing soil nutrient status. Using microbial-enriched urban compost in maize cultivation is a sustainable strategy, promoting nutrient absorption, plant vigor, and increased yields. This study is taken to analyzes the influence of enriched urban compost on plant nutrient uptake. The experiment carried out during 2022 late winter season with nine treatments in Randomized Complete Block Design (RCBD) with three replications. Kernel and stover samples were analyzed for N, P, K, and heavy metals (Pb, Ni, Cr) using standard procedures. Treatment (T7) involving 75% NPK and 7.5 tons per hectare of microbial-enriched urban solid waste compost (USWC), exhibited significantly higher nitrogen, phosphorus and potassium uptake is attributed to improved root and shoot growth, and enhanced nutrient availability. The enriched compost did not significantly alter for heavy metal concentration like chromium, nickel, lead uptake and its impact varies based on soil properties and compost composition.