What does this research mean for the field?

The application of 3 t ha-1 of dry sunflower leaf compost and foliar compost extract significantly enhances tomato growth and yield, providing a viable, low-cost, and sustainable alternative to synthetic fertilizers. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This study evaluates the effects of sunflower leaf residues and extracts on tomato yield and soil nutrient dynamics.

May 20, 2026Acta horticulturae et regiotecturaeOpen Access

Organic Inputs for Climate-Smart Agriculture: Effects of Sunflower ( Tithonia diversifolia ) Leaf Residues and Extracts on Tomato ( Lycopersicum esculentum Mill.) Yield and Soil Nutrient Dynamics

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Authors

EAEdet Iwebaffa AmosFederal University of Agriculture OCOnyeanusi Hillary ChukwuemekaNational Horticultural Research Institute AAAkinbode Oluwafolake AdenikeObafemi Awolowo University

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Implication

Randomized trial evaluated organic inputs on tomato yield and soil nutrients, suggesting sustainability benefits.

Key Points

This study evaluates the effects of sunflower leaf residues and extracts on tomato yield and soil nutrient dynamics.
Field trial conducted over two seasons (2023–2024) using a 2 × 5 factorial randomized complete block design.
Examined four rates of sun-dried sunflower compost and three rates of foliar compost extract.
Measurements taken included fresh fruit weight and fruit count per plant.
3 t ha −1 of leaf compost increased early-season fresh fruit weight from 724.5 to 1,045.5 kg ha −1.
At 2,000 dm 3 ha −1, foliar extract raised fruit number per plant from 146.0 to 200.5.
Overall, significant improvements in yield were observed, demonstrating the efficacy of sunflower-based inputs.

Cite This Study

Amos et al. (2026) studied this question.

synapsesocial.com/papers/6a0d4f92f03e14405aa9af00 https://doi.org/10.2478/ahr-2026-0003

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Organic Inputs for Climate-Smart Agriculture: Effects of Sunflower ( Tithonia diversifolia ) Leaf Residues and Extracts on Tomato ( Lycopersicum esculentum Mill.) Yield and Soil Nutrient Dynamics

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Cite This Study

Organic Inputs for Climate-Smart Agriculture: Effects of Sunflower ( Tithonia diversifolia ) Leaf Residues and Extracts on Tomato ( Lycopersicum esculentum Mill.) Yield and Soil Nutrient Dynamics

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