Vol. 5 (3) : May-June 2014 issue
Green Farming Vol. 5 (3) : 337-340 ; May-June, 2014
Yield, nutrient uptake and economics pertaining to aerobic rice in relation to iron application
D. RAKESHa1* and P. RAGHU RAMI REDDYb2
aDeptt. of Agronomy, Agriculture College, Acharya N.G. Ranga Agricul. University, Aswaraopet, Khammam – 507 301
bRice Section, Agricultural Research Institute, Rajendranagar, Hyderabad - 500 030 (A.P.)
Designation : 1P.G. Student *(rakesh2014@gmail.com), 2Principal Scientist
Subject : Agronomy and Crop Production
Paper No. : P-1215
Total Pages : 4
Received : 20 January 2014
Revised accepted : 12 May 2014
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Citation :
D. RAKESH and P. RAGHU RAMI REDDY. 2014. Yield, nutrient uptake and economics pertaining to aerobic rice in relation to iron application. Green Farming Vol. 5 (3) : 337-340 ; May-June, 2014
ABSTRACT
Field research was conducted to investigate the effects of different nutrient levels on grain yields, nutrient uptake and economics in aerobic rice at ARS, Kampasagar, Nalgonda during kharif-2011. The ten treatments consisted of testing recommended dose of fertilizers (120:60:40 kg NPK ha-1) and 50 % more of these nutrients with and without iron application. Results revealed that the grain yields were increased by 15.9 % with 50 % higher dose of NPK + 25 kg FeSO4 ha-1 over RDF(120:60:40:0 kg NPK and FeSO4 ha-1). The total uptake of NPK and Fe was also maximum with the application of 180:90:60:25 kg NPK and FeSO4 (T10- 91.3 kg, 24.9 kg, 66.7 kg and 42.9 g ha-1 respectively. The results also revealed that the maximum net returns of ` 35, 322 was obtained with the application of 50 % higher NPK over RDF and B:C ratio was maximum with application of 180:60:60 kg NPK ha-1 (T3).
Key words :
Aerobic rice, N, P, K and Fe levels, Nutrient uptake, Oryza sativa, Yield attributes.
