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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 6
First page : (408) Last page : (415)
Article doi: http://dx.doi.org/10.18782/2320-7051.5418

Nutrient Requirements of Maize Based on Soil Test Crop Response Correlation Approach

Yogesh Y. Giri1*, D.V. Ramana Reddy2, Harshad V. Thakur3, Kishor J. Mote4 and
Hanumant Singh5
Ph.D. Scholar1,3,4&5, Principal Scientist2,
Dept. of Soil Science & Agricultural Chemistry, College of Agriculture,
Prof. Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad-500030
*Corresponding Author E-mail: yygiri105@gmail.com
Received: 10.08.2017  |  Revised: 28.09.2017   |  Accepted: 1.10.2017  


Field experiment on maize was conducted at College Farm, Acharya NG Ranga Agricultural University (Now PJTSAU), Rajendranagar, Hyderabad, Telangana state, India, using 18 fertilized and 3 unfertilized (control) combinations of N, P2O5, K2O and VC.  The basic parameter viz., nutrient requirement (NR Kg/q) per cent contribution from soil (%CS) and per cent contribution from fertilizers, were calculated and using these basic parameters, fertilizer prescription equations for target yield targeting in kharif maize were developed. The result shows the correlation between yield (grain and dry matter) and other parameters like soil, plant uptake and fertilizer nutrients applied in maize. The grain yield had a significant correlation with soil N (0.58**), soil P (0.71**) and soil K (0.30**). The plant uptake N (0.93**), uptake P (0.91**) and uptake K (0.86**), similarly the grain yield had a high and significant correlation with fertilizer N (0.78**), fertilizer P (0.72**) and fertilizer K (0.67**).     

Key words: Correlation studies, maize, fertilizer prescription, nutrient requirement, %CS, %CF, STCR.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Giri, Y.Y., Reddy, D.V.R., Thakur, H.V., Mote, K.J. and Singh, H., Nutrient Requirements of Maize Based on Soil Test Crop Response Correlation Approach, Int. J. Pure App. Biosci.5(6): 408-415 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5418