Modulating Growth, Yield and Nutritional Traits of Cabbage through Potash Fertilization

Abstract

This study explores the potash fertilization impacts on the agronomic & physiological performance and nutrient uptake of cabbage. The controlled field experiment was conducted during the 2022-2023 growing season at the Ayub Agricultural Research Institute (AARI), Faisalabad, using five potash treatments: 0-200 mg L⁻¹ concentrations in water. Significant improvements in plant growth, yield and nutrition uptake with increasing potassium application rates was assessed in the results. At the application rate of 200 mg L⁻¹, plant height, leaf area and leaf count was enchanted by 58%, 37% and 41%, respectively, equated to the control. Moreover, fresh & dry weights and head diameter were suggestively enchanted with the peak values recorded at 200 mg L⁻¹. The application of potassium has also led to the increased nutrient uptake, specifically nitrogen, phosphorus and potassium, while soil organic matter (SOM) content indirectly increased with increasing potassium application levels because of enhanced microbial activity and organic matter decomposition. This study emphasizes the prominence of potassium in enhancing crop productivity and soil health, offering valued insights for sustainable cabbage cultivation practices.