Summary
This field trial evaluated a novel biostimulant derived from enzymatic hydrolysis of chicken feathers applied as a foliar spray to maize over two consecutive seasons in Spain. At the higher application rate (7.2 l ha−1), foliar fertilization significantly increased leaf nutrient concentrations and grain protein content by 26%, with grain yield increasing by 14% relative to untreated controls. The findings suggest potential agronomic and nutritional benefits from this valorised by-product approach for commercial maize production.
Regional applicability
The study was conducted in Extremadura, Spain, under Mediterranean-influenced conditions. Transferability to United Kingdom maize production would depend on climate adaptation and soil conditions; UK maize cultivation is less common and typically restricted to southern regions, so local agronomic trials would be needed to validate efficacy under UK rainfall, temperature, and photoperiod regimes.
Key measures
Leaf macro- and micronutrient concentrations, grain protein content (%), grain yield (t ha−1), application rates (l ha−1), treatment replication across two seasons
Outcomes reported
The study measured the effects of foliar application of an enzymatic hydrolysis product derived from chicken feathers on maize leaf nutrient concentrations, grain protein content, and grain yield over two consecutive growing seasons. Two application rates (3.6 and 7.2 l ha−1) were tested, applied three times per season.
Topic tags
Dig deeper with Pulse AI.
Ask about this record, its theme or its relevance to UK farming and policy. Pulse AI uses selected catalogue evidence and cites the sources it draws on.