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The study aims to assess the impact of biochar combined with nutrient sources on soil properties in rice-wheat systems.

Biochar-based integrated nutrient management improves soil quality and biological functioning in a rice–wheat cropping system

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The study aims to assess the impact of biochar combined with nutrient sources on soil properties in rice-wheat systems.
Conducted a two-year field experiment (2018–20) in Indo-Gangetic Plains using a randomized block design.
Tested nine treatments including control, RDF, and combinations of RDF with organic amendments and biochar.
Monitored soil physicochemical and biological properties, including carbon, nitrogen, phosphorus, potassium levels, and enzymatic activities.
The treatment 50% RDF + 50% poultry manure + biochar improved soil organic carbon to 1.16–1.20% compared to 0.58–0.60% in control.
Available nitrogen increased to ~560 kg ha⁻¹ vs. ~276 kg ha⁻¹ in control, and phosphorus to ~25 kg ha⁻¹ vs. ~6.4 kg ha⁻¹.
Soil enzymatic activities enhanced significantly, indicating better biological functioning compared to control.

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Randomized trial evaluates biochar-integrated nutrient practices in rice-wheat cropping, indicating improved soil health.

Jaswal et al. (2026) studied this question.

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