Yield and economics of sweet corn (Zea mays) as affected by plant population and fertility levels
DOI:
https://doi.org/10.59797/ija.v52i3.4932Keywords:
Economics, Fertility level, Plant population, Sweet corn, YieldAbstract
A field experiment was conducted at Jashipur, Orissa during rabi (dry) season of 2002-03 and 2003-04 to study the effect of plant population (1 11 .I, 83.3, 66.7 and 55.6 x 103/ha) and fertility levels (0-0-0, 40-8.7-1 6.7, 80-1 7.5- 33.3 and 120-26.2-50 kg NPWha) on yield and economics of sweet corn (Zea mays L.). Application of 120-26.2-50 kg NPK to 83.3 x IOlants/ha produced 16.48 tlha green cobs, which was 7.6% more than of 66.7 x lo3 plantslha with same level of fertility. It gave the maximum net profit of Rs 54,453/ha, followed by Rs 49,4391ha with 66.7 x 1 O3 plantslha fertilized with 120-26.2-50 kg NPWha. The benefit : cost ratio was the maximum with 83.3 x 10lants fertilized with 120-26.2-50 kg NPWha. The increase in fertility level linearly increased the green-fodder yield. Maxi- mum fodder yield (37.49 - 41.56 tlha) was attained with application of 120-26.2-50 kg NPWha. Hence, a plant population of 83.3 x 1 03/ha with fertility level 120-26.2-50 kg NPWha should be adopted to obtain the maximum green-cob yield and net profit from sweet corn in Orissa.References
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Raja, V. 2001. Effect of nitrogen and plant population on yield and quality of super sweet corn (Zea mays). Indian Journal of Agronomy 46(2): 246-249.
Sahoo, S.C. and Mahapatra, P.K. 2004. Response of sweet corn (Zea mays L.) to nitrogen levels and plant population. Indian Journal of Agricultural Sciences 74(6): 337-338.
Sofi, K.A., Sharma, D.P. and Thomas, T. 2004. Effect of nitrogen and potassium nutrition on yield, nutrient uptake and soil fertility on maize (Zea mays) under rainfed conditions of Uttar Pradesh. Environment and Ecology 22(3): 483-485.
Venkatesh, S., Sujay, Rakshit and Sekhar, J.C. 2003. Sweet corn. Speciality Corn ~echnical Series 1, Directorate of Maize Research, New Delhi, 1-3 pp.
Viswanatha, G.B., Ramachandrappa, B.K. and Nanjappa, H.V. 2000. Effect of drip irrigation and methods of planting on root and shoot biomass, tasseling-silking interval, yield and econom- ics of sweet corn (Zea mays L. cv. Saccharata).Mysore Jour- nal ofAgricultura1 Sciences 34: 134-141.
Widdicombe, W.D. and Thelen, K.D. 2002. Row width and plant density effects on corn forage hybrids. Agronomy Journal
: 326-330.
Huseyin, Gozubenli, Okan, Sener, Omar, Konuskan and Mehmet, Kilinc. 2003. Effect of hybrid and plant density on grain yield and yield components of maize (Zea mays). Indian Journal of Agronomy 48(3): 203-205.
Raja, V. 2001. Effect of nitrogen and plant population on yield and quality of super sweet corn (Zea mays). Indian Journal of Agronomy 46(2): 246-249.
Sahoo, S.C. and Mahapatra, P.K. 2004. Response of sweet corn (Zea mays L.) to nitrogen levels and plant population. Indian Journal of Agricultural Sciences 74(6): 337-338.
Sofi, K.A., Sharma, D.P. and Thomas, T. 2004. Effect of nitrogen and potassium nutrition on yield, nutrient uptake and soil fertility on maize (Zea mays) under rainfed conditions of Uttar Pradesh. Environment and Ecology 22(3): 483-485.
Venkatesh, S., Sujay, Rakshit and Sekhar, J.C. 2003. Sweet corn. Speciality Corn ~echnical Series 1, Directorate of Maize Research, New Delhi, 1-3 pp.
Viswanatha, G.B., Ramachandrappa, B.K. and Nanjappa, H.V. 2000. Effect of drip irrigation and methods of planting on root and shoot biomass, tasseling-silking interval, yield and econom- ics of sweet corn (Zea mays L. cv. Saccharata).Mysore Jour- nal ofAgricultura1 Sciences 34: 134-141.
Widdicombe, W.D. and Thelen, K.D. 2002. Row width and plant density effects on corn forage hybrids. Agronomy Journal
: 326-330.
