Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values

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...

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Main Authors: P K Basavaraja, P N Narasimha Reddy, N L Rajesh, K B Apoorva
Format: Article
Language:English
Published: Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2011-06-01
Series:Journal of Horticultural Sciences
Subjects:
Online Access:https://jhs.iihr.res.in/index.php/jhs/article/view/438
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author P K Basavaraja
P N Narasimha Reddy
N L Rajesh
K B Apoorva
author_facet P K Basavaraja
P N Narasimha Reddy
N L Rajesh
K B Apoorva
author_sort P K Basavaraja
collection DOAJ
description 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 root yield and NPK uptake by carrot crop were used for obtaining four important basic parameters, viz., nutrients required to produce a quintal of carrot roots (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.
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spelling doaj.art-af786abae27c4bb2b4d9768bcb63e12e2023-08-20T14:01:59ZengSociety for Promotion of Horticulture - Indian Institute of Horticultural ResearchJournal of Horticultural Sciences0973-354X2582-48992011-06-016110.24154/jhs.v6i1.438428Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test ValuesP K BasavarajaP N Narasimha ReddyN L RajeshK B Apoorva 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 root yield and NPK uptake by carrot crop were used for obtaining four important basic parameters, viz., nutrients required to produce a quintal of carrot roots (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. https://jhs.iihr.res.in/index.php/jhs/article/view/438CarrotRed SoilsBasic ParametersTargeted Yield Equation
spellingShingle P K Basavaraja
P N Narasimha Reddy
N L Rajesh
K B Apoorva
Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values
Journal of Horticultural Sciences
Carrot
Red Soils
Basic Parameters
Targeted Yield Equation
title Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values
title_full Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values
title_fullStr Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values
title_full_unstemmed Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values
title_short Development of Fertilizer Prescription Targeted Yield-Equation for Carrot Crop Based on Soil Test Values
title_sort development of fertilizer prescription targeted yield equation for carrot crop based on soil test values
topic Carrot
Red Soils
Basic Parameters
Targeted Yield Equation
url https://jhs.iihr.res.in/index.php/jhs/article/view/438
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AT nlrajesh developmentoffertilizerprescriptiontargetedyieldequationforcarrotcropbasedonsoiltestvalues
AT kbapoorva developmentoffertilizerprescriptiontargetedyieldequationforcarrotcropbasedonsoiltestvalues