EFFECT OF ORGANIC AND INORGANIC SOURCES OF NUTRIENTS ON NPK CONTENT IN RICE AT VARIOUS GROWTH PERIODS

MOHANA RAO PULI¹*, P.R.K. PRASAD², P. RAVINDRA BABU³, K.L. NARASIMHA RAO⁴, G. SUBBAIAH⁵, B. SRIHARI RAO^6
1Scientist, Department of Soil Science and Agricultural Chemistry, Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Lam, 522034
²Professor and Head, Department of Soil Science and Agricultural Chemistry, Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
³Professor, Department of Soil Science and Agricultural Chemistry, Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Lam, 522034
⁴Professor, Department of Crop Physiology, Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
⁵Professor, Department of Agronomy, Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
⁶SMS, Soil Science, ICAR-BCT-Krishi Vigyan Kendra, Haripuram, 531061, Visakhapatnam, India
* Corresponding Author : mohanpuli007@gmail.com

Received : 20-09-2018     Accepted : 26-09-2018     Published : 30-09-2018
Volume : 10     Issue : 18       Pages : 7219 - 7221
Int J Agr Sci 10.18 (2018):7219-7221

Keywords : Organic sources, inorganic sources, N content, P content, K content and rice crop
Academic Editor : Dr Prashant Shrivastava
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Department of Soil Science and Agricultural Chemistry, Agricultural College, Bapatla, 522101, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
Author Contribution : All author equally contributed

A field experiment was conducted as doctoral research for two consecutive years (2011-2012 and 2012-2013) on fine texture soils of Agricultural college farm, Bapatla as a doctoral research to find out the effect of different sources of nutrients on NPK content in rice at various growth periods. The experiment was laidout in a randomized block design in kharif season with four treatments and replicated five times. The treatments consisted of M1 (RDF - Control), M2 (10t FYM ha-1 + RDF), M3 (1.5t vermicompost ha-1 + RDF), M4 (Green manuring + RDF). The NPK content in rice at various growth periods was significantly increased with the application of 100%NPK in combination with FYM @10t ha-1. However, it was on par with that of green manuring together with 100% NPK during both the years of the study.

1. Gautam P., Sharma G.D., Rana R and Lal B. (2013) International Journal of Research in Biosciences, 2(3), 53-59.
2. Islam M.S., Islam M.Z., Rahman G.K.M.M and Chowdhury M.A.A.H. (2010) International Journal for Sustainable Crop Production, 5(4), 51-58.
3. Jackson M.L. (1973) Soil chemical analysis. Prentice Hall of India Private Ltd., NewDelhi :134-182.
4. Kadu B.P., Bhoyar V.S and Thakare R.S. (1991) Journal of Soils Crops, 1(2), 172-174.
5. Olsen S.R., Code C.L., Watanable F.S and Dean L.A. (1954) Estimation of available phosphorus in soils by extraction with sodium bicarbonate. United States development Agency Circular Number 939.
6. Piper C. S. (1966) Soil and plant analysis. Hans Publishers, Bombay, 368.
7. Rahaman M.N., Sayem S.M., Alam M.K. Islam M.S and Mondol A.T.M.A.I. (2007) Journal of soil and Nature, 1(3), 5-10
8. Ranjha A.M., Iftikhar A., Iqbal M and Ahmed M.J. (2001) International Journal of Agriculture & Biology, 3(2): 197-198.
9. Subbiah B.V and Asija C.L. (1956) Current Science, 25, 259-260.
10. Watanabe F.S. and Olsen S.R. (1965) Soil Science Society of American Journal, 29,677-78.