Contrasting Effects of Biohumus and Urea on Potato Yield, Tuber Quality, Nitrate Concentration, and Profitability under Mountainous Conditions
Sustainable nutrient management is essential for maintaining potato productivity and tuber quality while limiting nitrate accumulation in mountainous agroecosystems. A two-year field experiment conducted in Martuni, Armenia, compared Quicelum, humate, biohumus, mineralized manure, and urea in ‘Marfona’ potato using a r...