Site specific nutrient management in citrus
Keywords:
Citrus, fertilizer requirement, grid sampling, Haplustert, SSNM, soil spatial variability, UstorthentAbstract
Crop behaviour and soils are not uniform within an orchard which have been the triggering factor for not able to break yield barrier through effective nutrient management programme. Better response of site specific nutrient management (SSNM) over recommended doses of fertilizers (RDF) including those of farmers’ conventional fertilization practices (FFP) signals a wake-up call to address the fertilizer requirements on the principles of SSNM, if the full potential of orchard productivity has to be realized on a given soil type. These observations also warrant to tailor the fertilizer application on the basis of spatial variation in available supply of nutrients in soil and tree canopy size within an orchard to minimize the gap between actual and potential productivity of citrus orchards.
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