An Asian Journal of Soil Science

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Responses of Split Application of Nitrogen on the Performance of Kharif Rice (Oryza sativa L.) in Terai Zone of West Bengal


Affiliations
1 Regional Research Station (U.B.K.V.), Terai Zone, Cooch, Behar (W.B.), India
2 All India Network Project on Jute and Allied Fibres, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch, Behar (W.B.), India
3 Department of Soil Science and Agricultural Chemistry, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch, Behar (W.B.), India
4 Department of Agronomy, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch, Behar (W.B.), India
     

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A field trial had been conducted to see the responses of split application of nitrogen on the performance of Kharif rice comprising of 5 treatments (T1=50% N as basal+50% N at active tillering, T2=50% N as basal+25% N at active tillering+25% N at panicle initiation, T3=25% N as basal+25 % N at active tillering+25% N at panicle initiation+25% N at flowering, T4=40% N as basal+30% N at active tillering basal+30% N at panicle initiation and T1=100% N as basal) using Randomized Complete Block Design (RCBD) with 4 replications in Terai zone, Cooch Behar, West Bengal during 2015 and 2016. The experimental results showed that all the growth and yield attributes were found to be highest where nitrogen was applied in four equal split (T3) followed by T2 and T4. Higher growth and yield attributes ultimately helped in producing 6.98 and 9.22 per cent more grain yield in T3 over T2 and T4, respectively. 430 to 820 kg ha-1 yield reduction has been found when 100 per cent nitrogen applied as basal in comparison with splitting of nitrogen in two (T1) and four equal parts (T3).

Keywords

Rice, Nitrogen, Split Application, Yield, Economics.
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  • Responses of Split Application of Nitrogen on the Performance of Kharif Rice (Oryza sativa L.) in Terai Zone of West Bengal

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Authors

Partha Sarathi Patra
Regional Research Station (U.B.K.V.), Terai Zone, Cooch, Behar (W.B.), India
Shyamal Kheroar
All India Network Project on Jute and Allied Fibres, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch, Behar (W.B.), India
Ashok Choudhury
Department of Soil Science and Agricultural Chemistry, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch, Behar (W.B.), India
Rajesh Saha
Department of Agronomy, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch, Behar (W.B.), India

Abstract


A field trial had been conducted to see the responses of split application of nitrogen on the performance of Kharif rice comprising of 5 treatments (T1=50% N as basal+50% N at active tillering, T2=50% N as basal+25% N at active tillering+25% N at panicle initiation, T3=25% N as basal+25 % N at active tillering+25% N at panicle initiation+25% N at flowering, T4=40% N as basal+30% N at active tillering basal+30% N at panicle initiation and T1=100% N as basal) using Randomized Complete Block Design (RCBD) with 4 replications in Terai zone, Cooch Behar, West Bengal during 2015 and 2016. The experimental results showed that all the growth and yield attributes were found to be highest where nitrogen was applied in four equal split (T3) followed by T2 and T4. Higher growth and yield attributes ultimately helped in producing 6.98 and 9.22 per cent more grain yield in T3 over T2 and T4, respectively. 430 to 820 kg ha-1 yield reduction has been found when 100 per cent nitrogen applied as basal in comparison with splitting of nitrogen in two (T1) and four equal parts (T3).

Keywords


Rice, Nitrogen, Split Application, Yield, Economics.

References