Spatiotemporal Speciation of Micronutrients in Organic Compost and Their Efficacy in Enhancing Triticum aestivum L. Yield

Numan Latif; Muhammad Usama Rafiq; Syed Mufeed Hadi Naqvi

Authors

Numan Latif Assistant Manager Education, Read Foundation, Institute of Soil and Environmental Science, PMAS-Arid Agriculture University, Rawalpindi, Pakistan. Author
Muhammad Usama Rafiq Chief Executive, Armghan Seed Coorporation, Institute of Soil and Environmental Science, PMAS-Arid Agriculture University, Rawalpindi, Pakistan. Author
Syed Mufeed Hadi Naqvi Lecturer (Visiting), Department of Agriculture Extension and Education, Ghazi University, DG Khan, Pakistan. Author

Keywords:

Composite Formation, Micro-nutrients, Wheat Cultivation, Speciation and Bioavailability, Micronutrient Proportions

Abstract

This study explored the impact of organic compost sourced from a three-month aerobic decomposition of poultry manure, farmyard manure, and green manure on soil health and wheat (Triticum aestivum L.) productivity. Organic additives, featuring an EC of 2.2 dSm⁻¹ and a pH of 7.5, were applied to the soil with a benchmark pH of 8.06 and EC of 0.58 dSm⁻¹ to examine their potential to enrich micronutrient retention and soil structure. By using the A-B DTPA methodology, soil extraction and wet digestion for plant tissue analysis, the experiment emphasized the speciation and bioavailability of micronutrients. The findings imply that the application of 15 tha⁻¹ (T4) yielded the most notable improvements, followed in order by the 10t ha⁻¹ (T3) dosage; specifically, post-harvest(production) soil analysis in T4 revealed micronutrient proportions of 2.7, 0.55, and 2.81 mg kg⁻¹ for Cu, Zn, and Fe, respectively. This nutrient supplementation resulted in appreciable enhanced agronomic productivity, including a 40% increase in total wheat output, an 18% increase in spike size, and a 14.2% rise in fresh biomass yield. Furthermore, plant tissue analytical assessment confirmed the improved uptake in T4, with Cu, Zn, and Fe concentration level reached up to 18.6, 79.3, and 33.3 mg kg⁻¹, respectively.

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