Open AccessInfluence of Graded Levels of Phosphorus at Different Fertility Gradient on Soil Properties under Finger Millet- Maize Cropping System
Author(s) -
M. Chandrakala,
Srinivasa Murthy,
C. T. A. Kumar
Publication year - 2019
Publication title -
agropedology
Language(s) - English
Resource type - Journals
ISSN - 0971-1570
DOI - 10.47114/j.agroped.2017.jun3
Subject(s) - phosphorus , agronomy , soil fertility , nutrient , cropping , fertility , cropping system , agriculture , soil water , environmental science , chemistry , biology , zoology , soil science , population , ecology , crop , medicine , organic chemistry , environmental health
The influence of graded levels of phosphorus at different fertility gradient on soil properties was studied at Zonal Agricultural Research Station (ZARS), GKVK, UAS, Bengaluru under finger millet-maize cropping system. Five phosphorus fertility gradients viz., P0 (Very low), P1 (Low), P2 (Medium), P3 (High) and P4 (Very high) ( 60 kg P2O5 ha-1) were imposed. Results indicated that, availability of N, P, K, S, Mg, Mn, Cu content was higher in very high fertility strip, whereas the exchangeable Ca, DTPA-Fe and Zn were significantly higher in medium P fertility gradient strip. Combined application of manures and fertilizers resulted in relatively higher availability of nutrients as compared to inorganics alone. Further, there was a build-up of P in gradient strips with graded levels of P application.