Enhancement of Wheat (Triticum aestivum L.) Growth and Yield Attributes in a Subtropical Humid Climate through Treated Ganga Sludge-based Organic Fertilizers.

Abstract

Sewage sludge is a by-product of urbanization that poses environmental and health challenges. However, it can also be a valuable source of organic matter and nutrients for agriculture. This study aimed to assess the potential of five types of organic fertilizers derived from treated Ganga sludge on the growth of wheat plants. The Patanjali Organic Research Institute has developed five types of granulated organic fertilizer from the stabilized Ganga sludge. The results showed that the organic fertilizers significantly improved the wheat performance in terms of plant height, biomass accumulation, chlorophyll content, leaf area and other yield parameters. Furthermore, the fertilizers ameliorated soil physicochemical attributes and augmented the availability of macro- and micronutrients. Importantly, levels of heavy metals in soil and wheat grains remained within permissible limits, affirming the safety and appropriateness of these fertilizers for wheat cultivation. This study underscores the efficient utilization of treated Ganga sludge as a valuable organic fertilizer source, proposing a sustainable and ecologically sound approach for sewage sludge management and enhancement of agricultural productivity.