Abstract Views :203 |
PDF Views:119
Authors
Affiliations
1 AICRP on STCR, Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, GKVK, Bangalore – 560 065, IN
Source
Journal of Horticultural Sciences, Vol 6, No 1 (2011), Pagination: 33-36
Abstract
A field experiment was conducted on red soils (Kandic paleustalfs) of Zonal Agricultural Research Station, GKVK, Bangalore during kharif 2008-09 to develop a targeted yield equation for carrot crop. After developing three levels of fertility gradient with respect to available NPK in soil, the main experiment was conducted by taking carrot as a test crop. Initial soil data, carrot ischolar_main yield and NPK uptake by carrot crop were used for obtaining four important basic parameters, viz., nutrients required to produce a quintal of carrot ischolar_mains (NR%), contribution of nutrients from fertilizers (CF%), contribution of nutrients from soil (CS%) and contribution of nutrients from organic matter (%C-OM). These parameters were used for developing fertilizer-adjustment targeted yield equation. Comparison of the present soil testing laboratory method with Soil Test Crop Response approach of fertilizer recommendation clearly indicated superiority of STCR targeted yield approach for efficient and economic use of fertilizers to attain the required yield target.
Keywords
Carrot, Red Soils, Basic Parameters, Targeted Yield Equation.
Full Text
