Vol. 9, Issue 1 (2021)
Soil test based fertilizer prescriptions for specific targeted yield of sugarcane (Ratoon) in clay loam soils (Inceptisols) of north coastal Andhra Pradesh, India
Author(s): T Sreelatha, DV Ramana Reddy and CH S Ramalakshmi
Abstract: Study on Soil Test Crop Response (STCR) was conducted on Sugarcane (ratoon) from 2009-10 to 2013- 14 in clay loam soils (Inceptisols) of Regional Agricultural Research Station, Anakapalle of Andhra Pradesh with an objective of developing soil test based fertilizer recommendations for attaining yield targets under IPNS for North Coastal Andhra Pradesh. Field experiments viz. fertility gradient development with maize and test crop experiment with sugarcane (var. 2001A63) for two years were conducted from 2009-10 to 2013- 14.With the help of nutrient uptake, soil test values and average basic information necessary for establishment of fertilizer recommendations to different sugarcane production levels (70 t ha-1 and 80 t ha-1) for ratoon crop were calibrated. The basic data was transformed into simple workable fertilizer prescription equations for calculating fertilizer doses based on initial values of soil testing by the procedures laid by Ramamoorthy et al. (1967) [14] and Velayudham and Rani Perumal (1976). The pooled equations for targeted yields developed from these basic data were FN=4.17T–0.43SN–0.03PMC N; FP2O5=1.05T–1.54SP–0.03PMC P; FK2O=2.83T–0.36SK–0.03PMC K. Ready reckoner was prepared for fertilizer doses at different soil test values to grow sugarcane crop (ratoon) with interpretation of the devoloped equations for a range of soil test values and for targeted yields of 70 t ha-1 and 80 t ha-1 for sugarcane (ratoon). In the present study, there was a marked yield response was observed with the application of NPK fertilizers. However, the magnitude of response was higher under NPK with Press mud cake when compared to NPK alone. The prescription of fertilizer application can be extended to according to the soil nutrient status as indicated in the ready reckoner without extrapolation for sugarcane (ratoon) in the in clay loam soils (Inceptisols) of North Coastal Andhra Pradesh.
DOI: 10.22271/chemi.2021.v9.i1aw.11769
Pages: 3462-3468 | 360 Views 83 Downloads
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How to cite this article:
T Sreelatha, DV Ramana Reddy, CH S Ramalakshmi. Soil test based fertilizer prescriptions for specific targeted yield of sugarcane (Ratoon) in clay loam soils (Inceptisols) of north coastal Andhra Pradesh, India. Int J Chem Stud 2021;9(1):3462-3468. DOI: 10.22271/chemi.2021.v9.i1aw.11769
