Productivity and economics of rice (Oryza sativa)maize (Zea mays) as influenced by methods of crop establishment, Zn and S application in rice
DOI:
https://doi.org/10.59797/ija.v55i3.4747Keywords:
Intensification, Maize, Productivity, Rice, SulphurAbstract
A field experiment was conducted during 2007-08 and 2008-09 at Hyderabad, to study the effect of three rice ( Or yza sativa L.) establishment methods [sowing of sprouted rice under puddle condition (DS) at 25 cm x 25 cm, system of rice intensification (SRI) seedlings transplanted at 25 cm x 25 cm and conventional transplanting (CT) at 20 cm x 15 cm] as main plots and five nutrient combinations (NPK, NPK + Zn, NPK + S, NPK + Zn + S and NPK + FYM ) in sub - plots on rice-maize ( Zea mays L.) sequence in a spilt plot design with treatments replicated thrice. On an average rice under SRI recorded the higher drymatter accumulation /hill, yield attributes and yield. On an average SRI rice maize sequence recorded the highest rice equivalent yield (11.37 t/ha on mean basis), net re- turns (58,346 Rs/ha) and benefit : cost ratio (BCR). Application of S, Zn and FYM improved significantly the pro- ductivity of rice and succeeding maize crop. Among nutrient management practices, NPK + Zn + S recorded higher grain yield (5.27 t/ha) and yield attributes during both years of rice cultivation, except that it was on par with NPK + FYM in 2008-09. Similar trend was also observed in uptake of nutrients. Based on the systems productivity (11.72 t/ha), net returns (58,983 Rs/ha), and BCR, NPK + Zn + S treatment excelled all other nutrient combina- tions. SRI method used 23 and 25% less water compared to CT and DS. NPK + FYM application to rice crop re- corded significantly highest quantity of available soil N, P and K content after crop harvest. While, highest avail- able soil S and Zn content was recorded by the treatments where in respective nutrients were applied in the previ- ous season to rice. Thus it is concluded that SRI rice maize is more productive, beneficial and efficient water user. Both Zn and S be applied to rice to raise the productivity of subsequent maize too.References
Chapale, S.D. and Badole W.P. 1999. Response of rice (Oryza sativa) to zinc application. Indian Journal of Agronomy 44(3): 539542.
Chandravanshi, P. 1998. Studies on physical, chemical and microbiological properties of an alfisol subjected to permanent manuring and cropping schedule. M.Sc (Ag) Thesis, UAS, Bangalore, Karnataka, India.
Dash, D., Pattanayal, S.K. and Nayak, R.K. 2000. Effect of green gram and treatments with different doses of molybdenum and cobalt on seed yield, biomass production and their incorporation as partial green manure crop to benefit subsequent maize crop in the sequence. International Journal of Tropical Agriculture 18(2): 101111.
Moorthy, B.T.S. and Sanjoy, Saha. 1997. Effect of methods of planting and spacing on the performance of rice under shallow
lowland conditions. Oryza 34(3): 274275.
Nissanka, S.P. and Bandara, T. 2004. Comparison of productivity of System of rice intensification and conventional rice farming systems in the dry zone region of Sri Lanka. In: 4th International Crop Science Congress, Brisbane, Australia, 26 September - 01 October, 2004.
Rajesh, V. and Thanunathan, K. 2003. Effect of seedling age, number and spacing on yield and nutrient uptake of traditional Kambanchamba rice. Madras Agricultural Journal 90: 47
Rathore, A.L., Chipde, S.J. and Pal, A.R. 1995. Direct and residual effect of bio - organic and inorganic fertilizer in rice wheat cropping system. Indian Journal Agronomy 40(1): 1419.
Reddy, G.B. and Reddy, S.M. 2000. Effect of organic manures and nitrogen levels on soil available nutrient status in maize-soybean cropping system. Journal of Indian Society of Soil Science 46(3): 474476.
Sinha, S.K. and Talati, J. 2006. Productivity impacts of the system of rice intensification (SRI): A case study in West Bengal, India. Agricultural Water Management 87(1): 5560.
Uphoff, N. 2001. Opportunities for raising yields by changing management practices: The SRI in Madagascar. In: Agro-Ecological Innovations: Increasing Food Production with Participatory Development (Uphoff, N. Ed.). Earth Scan Publications Ltd, London, Sterilin, VA, pp. 145161.
Viraktamath. B.C. and
