Fertiliser Responses in Amaranthus blitum subsp. oleraceus and African Marigold (Tagetes erecta L.): A Comparative Critical Review with Evidence from Related Vegetable Amaranths
Manju M George · Asian Journal of Research in Crop Science · 2026
Fertiliser management in leafy amaranths and African marigold is frequently discussed as if greater nutrient supply produces a simple, transferable increase in crop performance. The evidence is more conditional. This critical narrative review compares mineral, organic, integrated...