Nutrient profiling of mulberry cultivars: Variations in macronutrient and micronutrient content

Abstract

This study assessed the macronutrient and micronutrient content of five mulberry cultivars (V1, G2, G4, S36, and S13) to evaluate their nutrient absorption and suitability for leaf production. The results showed significant differences among cultivars in their nutrient levels. V1 and S13 consistently recorded the highest concentrations of nitrogen (3.90% and 3.80%), phosphorus (0.31%), potassium (2.90%), calcium (1.70% and 1.80%), magnesium (0.48% and 0.47%), and sulphur (0.27% and 0.25%). Additionally, they had the highest levels of iron (87.67 ppm), manganese (47.67 ppm), zinc (26.67 ppm and 25.67 ppm), and copper (8.50 ppm and 9.00 ppm). G4 consistently showed the lowest nutrient content, highlighting the need for additional nutrient inputs. Correlation analysis revealed strong positive relationships among nitrogen, potassium, magnesium, iron, and zinc, indicating their combined importance in plant growth. Conversely, negative correlations with phosphorus and copper suggest potential nutrient competition. V1 and S13 were identified as the most suitable cultivars for high-quality leaf production. Future studies should explore the link between nutrient levels and silkworm performance.