Foliar Application of Multi-Nutrient Mixture for Growth and Productivity in Mulberry

Abstract

Foliar feeding, the application of nutrients directly to plant leaves, has emerged as a important technique for improving the crop productivity, particularly in mulberry cultivation. This method addresses nutrient deficiencies in soils with poor fertility, where traditional soil fertilization is often inadequate. Foliar feeding allows for rapid nutrient absorption, effectively mitigating plant nutrient deficiencies and enhancing plant vigour and productivity. Balanced nutrition, particularly with macronutrients like nitrogen (N), phosphorus (P), and potassium (K), alongside essential micronutrients such as zinc (Zn) and boron (B), is required in optimal level for enhanced leaf productivity and its quality in mulberry. Foliar spray of multi-nutrient formulation could supply the balanced nutrition to the crop. Evaluated two different multi-nutrient formulations (MNF-I and MNF-II with 0.25%, 0.50%, 0.75% concentration) through foliar application in mulberry. The study revealed that MNF-I at 0.75% significantly improved leaf yield and economic returns compared to control (no multi-nutrient application). The results demonstrated enhanced total soluble protein and sugar content in leaves, critical for silkworm nutrition. Additionally, improvements in chlorophyll content and moisture retention were observed, supporting the nutritional quality of the leaves. The findings underscore the effectiveness of foliar fertilization in optimizing nutrient use efficiency and overcoming soil-related limitations. The study advocates for the adoption of tailored multi-nutrient formulations to bolster sustainable sericulture practices. Overall, this study highlights the potential of foliar feeding as a viable strategy for enhancing quality mulberry leaf productivity and supporting the sericulture industry sustainably.