Biochar-enriched compost and foliar application of banana stem sap on soil fertility, nutrient availability against Al 3+ toxicity, and sweet corn yield in acidic soil

Mahammad Shariful Islam; Mst. Fatima Khatun; Shyamal Brahma; Susilawati Kasim; Md Khairul Alam

doi:10.1080/01904167.2025.2570216

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Biochar-enriched compost and foliar application of banana stem sap on soil fertility, nutrient availability against Al 3+ toxicity, and sweet corn yield in acidic soil

Journal article

Open access

Peer reviewed

Biochar-enriched compost and foliar application of banana stem sap on soil fertility, nutrient availability against Al 3+ toxicity, and sweet corn yield in acidic soil

Mahammad Shariful Islam, Mst. Fatima Khatun, Shyamal Brahma, Susilawati Kasim and Md Khairul Alam

Journal of plant nutrition

2025

DOI: https://doi.org/10.1080/01904167.2025.2570216

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Abstract

Acid soil

banana stem sap

compost

soil chemical properties

exchangeable acidity and corn yield

In tropical soils, inadequate nutrient availability, exacerbated by high concentrations of iron (Fe) and aluminum (Al) ions, significantly limits sweet corn yield by interfering with the nutrient uptake. This study tested the hypothesis that applying biochar-enriched compost (BEC), together with foliar application of banana stem sap (BSS), would enhance soil fertility and nutrient utilization compared to chemical fertilizers alone. Two consecutive pot experiments were conducted using four BEC levels (T1: control with 100% recommended chemical fertilizers; T2: 5 t/ha; T3: 10 t/ha; T4: 15 t/ha) and three BSS frequencies (F1: no spray; F2: two sprays; and F3: three sprays), arranged in a factorial randomized complete block design with three replications. Application of 15 t/ha BEC significantly improved soil properties, increasing pH by 1.79 units, potassium by 362%, calcium by 230%, magnesium by 253%, and cation exchange capacity by 80%, while reducing exchangeable Al3+ by 96% and soil acidity by 67%, compared to the control. Corn yield and biomass increased by 10.54% and 7.84%, respectively, with BEC and by 9.24% and 7.75% with the highest BSS frequency. In conclusion, the combination of 15 t/ha BEC and three foliar applications of BSS significantly improves sweet corn productivity and soil fertility in acidic soils.

Details

Title: Biochar-enriched compost and foliar application of banana stem sap on soil fertility, nutrient availability against Al 3+ toxicity, and sweet corn yield in acidic soil
Authors/Creators: Mahammad Shariful Islam - Bangladesh Agricultural Research Institute
Mst. Fatima Khatun - Bangladesh Agricultural Research Institute
Shyamal Brahma - Bangladesh Agricultural Research Institute
Susilawati Kasim - Universiti Putra Malaysia
Md Khairul Alam
Publication Details: Journal of plant nutrition
Publisher: Taylor & Francis Group, LLC
Number of pages: 17
Identifiers: 991005830346707891
Copyright: © 2025 The Author(s).
Murdoch Affiliation: Centre for Sustainable Farming Systems
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.45 Soil Science; 3.45.1903 Biochar
Web Of Science research areas: Plant Sciences
ESI research areas: Plant & Animal Science