September 10, 2025AgronomyOpen Access

The Effect of Foliar Micronutrient Fertilization on Yield and Nutritional Quality of Maize Grain

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Field experiment found foliar application of Zn and B enhances grain yield and micronutrient content in maize, suggesting their importance.

Zn foliar application increased grain yield by 0.59 t ha−1 and 0.49 t ha−1 in consecutive years.
Grain size and quality improved with foliar micronutrient applications, particularly with Zn and B.
Biochemical analyses showed enhanced antioxidant capacity and carotenoid accumulation due to foliar micronutrient fertilization.
Smaller beneficial effects were noted for other micronutrients, highlighting their varying contributions to maize performance.

Jarecki et al. (2025) studied this question.

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Field experiment found foliar application of Zn and B enhances grain yield and micronutrient content in maize, suggesting their importance.