Comparative effects of biological and mineral nitrogen fertilization on Soybean – corn intercropping performance

July 30, 2026Saudi Journal of Food Security and Environmental SustainabilityOpen Access

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Key Points

The study aims to compare the effects of biological and mineral nitrogen fertilization on soybean and corn intercropping performance.
Conducted a 2-year field trial at Cairo University, Egypt, with intercropping and sole cropping systems.
Applied different N-fertilization treatments including zero nitrogen and varying rates for corn and soybean.
Utilized a split-plot design with three replicates for each treatment.
Intercropping increased corn grain yield and shelling percentage, while soybean productivity decreased with intercropping.
Biological nitrogen fertilization led to higher grain yields compared to mineral nitrogen application.
Intercropping increased net benefits, achieving up to 1624.93 USD per hectare.

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Compares biological and chemical nitrogen effects on soybean and corn yields, suggesting sustainable practices.

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Metwally et al. (2026) studied this question.

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