Influence of potassium on the soil nutrient status of banana orchard

摘要

An experiment was conducted in West Bengal, India, to find out the soil nutrient status of a banana plantation following potassium application. The levels of potassium were 100, 200, 300, 400, 500 and 600 g K2O/plant per year. The available potassium status of soil was much higher in the surface soil (0-25 cm) than subsurface soil (25-50 cm depth). The build-up pattern of soil nitrogen was also similar to that of potassium. However, application of potassium showed positive and significant effect onenrichment of soil nitrogen status although available soil phosphorus (P2O5) content was not much influenced by K application. Soil nutrient status (N, P, K) was considerably reduced during the shooting stage.