Potassium Dynamics in Inceptisols as Influenced by Graded Levels of Potash for Banana: I. Potassium Fractions. Issue 15 (22nd August 2018)

• Record Type: Journal Article
• Authors: Bhalerao, V. P.; Deshpande, A. N.; Bansal, S. K.
• Is Part Of: Communications in soil science and plant analysis. Volume 49:Issue 15(2018)
• Page Start: 1886
• Page End: 1895
• Publication Date: 2018-08-22
• Subjects: Banana -- exchangeable K -- K balance -- non-exchangeable K -- solution K -- total K; Soil science -- Periodicals; Plants -- Chemical analysis -- Periodicals; Agricultural chemistry -- Periodicals; 631.405
• DOI: 10.1080/00103624.2018.1485929
• Languages: English
• ISSNs: 0010-3624

Abstract

ABSTRACT: Knowledge of forms of potassium (K) in soil is of great importance for formulating sound fertilizer recommendation to banana. Field experiments were conducted to study the effect of graded levels of potash application on forms of potassium at juvenile, grand growth, shooting, and harvest stages of banana on Vertic Haplustept soil. The negative balance of soil-available K was observed in the treatments of 0, 100, and 200 g K2 O plant −1 . However, at 300-g K2 O plant −1 level, the balance was a mere –11 kg ha −1, and positive balance was observed in the treatments of 400 and 500 g K2 O plant −1 . Significant positive correlation among different forms of K indicated the interdependency and dynamic equilibrium between K forms. Application of K2 O above the level of 300 g plant −1 for banana resulted in the build-up of potassium fractions in soil.