Journal of FARM SCIENCES, Vol 26, No 3 (2013)

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Nitrogen management through leaf colour chart (LCC) on growth, yield and yield attributes of emmer wheat [Triticum dicoccum (Schrank.) Schulb.] under irrigated condition

S.P. Dineshkumar, B.N. Patil, S.M. Hiremath, R.V. Koti, V.V. Angadi, B. Basavaraj

Abstract


A field experiment was conducted under All India Coordinated Wheat Improvement Project at University of Agricultural Sciences, Dharwad during rabi season of 2008-09 and 2009-10. The treatment consisted of three levels of leaf colour chart (LCC) (< 3, < 4 and < 5), three levels of nitrogen (10, 20 and 30 kg ha-1 per top dressing), two method of application (with basal and without basal) and two controls (Recommended dose of nitrogen and zero nitrogen). The experiment was laid out in Randomized Complete Block Design with factorial concept with three replications. LCC < 5 recorded significantly higher grain (44.04 q ha-1) and straw yields (70.16 q ha-1) as compared to LCC < 4 and 3. Significantly higher growth and yield components were observed with LCC < 5. Application of nitrogen as top dress @ 30 and 20 kg ha-1 recorded significantly higher grain (39.41 and 38.58 q ha-1, respectively) and straw yields (63.26 and 62.49 q ha-1) as compared to 10 kg ha-1. Significantly higher growth and yield attributes were recorded with application of nitrogen as top dress @ 30 and 20 kg ha-1 than 10 kg ha-1. Basal application of nitrogen recorded significantly higher grain (41.57 q ha-1) and straw yields (66.42 q ha-1) as compared to without basal application. LCC < 5 with top dressing of nitrogen @ 30 kg ha-1 and basal application (L3N3M1) (51.55 q ha-1) and LCC < 5 with top dressing @ 20 kg ha-1 and basal application (L3N2M1) (48.62 q ha-1) recorded significantly higher pooled grain yield as compared to other treatment combinations including two controls (RDN and Zero nitrogen) and both were at par with each other. Significantly higher pooled straw yield was observed with L3N3M1 (80.75 q ha-1) and L3N2M1 (76.14 q ha-1). growth and yield components were also significantly higher with L3N3M1 and L3N2M1.

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