Impact of chelated zinc and seaweed extract on soil properties under guava cultivation

Abstract

The field experiment was conducted at Fruit Orchard, Department of Horticulture, College of Agriculture, Gwalior (M.P.) during 2023-24 and 2024-25 to study the effect of Chelated Zinc and Seaweed extract on the Soil properties under guava (Psidium guajava L.) cv. G-27 cultivation. The results revealed a statistically significant improvement in all studied soil parameters viz., electrical conductivity (EC), available nitrogen, phosphorus, potassium, cation exchange capacity (CEC), and organic carbon. Pooled data revealed that the application of chelated zinc at 0.4% (C2) consistently enhanced nutrient availability, CEC and organic carbon over control, while seaweed extract at 6 ml (S3) proved superior in improving all studied soil fertility indices. These findings suggest that integrating chelated zinc with seaweed extract application enhances soil health and nutrient dynamics in guava cultivation.