Summary
This field trial evaluated four natural biostimulants (humic acid, vermicompost tea, moringa leaf extract, and yeast extract) applied to snap beans in a randomised block design with three replicates. Moringa leaf extract demonstrated the strongest effects on growth and yield parameters, whilst all tested biostimulants improved amino acid profiles. The findings suggest that biostimulants, particularly moringa leaf extract and vermicompost tea, can enhance both agronomic performance and nutritional value of snap beans as a plant-based food.
UK applicability
These findings on biostimulant efficacy for snap beans may be relevant to UK horticulture, though the study location is not specified in the abstract and climate, soil, and agronomic conditions should be verified before applying recommendations. UK growers seeking to optimise snap bean quality and nutritional density through eco-friendly inputs may find the moringa and vermicompost tea results of interest.
Key measures
Plant height, number of leaves and branches per plant, fresh and dry weight, stem diameter, chlorophyll content, crop and pod quality, amino acid profile
Outcomes reported
The study assessed the effects of four natural biostimulants on snap bean growth, yield, chlorophyll content, chemical composition, and amino acid profiles compared to untreated controls. Measured parameters included plant height, leaf and branch number, fresh and dry weight, stem diameter, pod quality, and nutritional composition.
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