PERFORMANCE OF CHICKPEA UNDER DIFFERENT LEVELS OF NITROGEN AND PHOSPHORUS WITH RHJZOBIUM INOCULA

Abstract

The experiment was conducted at the Agronomy Farm of Sher-e-Bangla Agricultural University. Dhaka from November 2008 to March 2009 to evaluate the Performance of chickpea under different levels of nitrogen and phosphorus with Rhizobium inocula'. The experiment comprised of II treatments. T, = N0P 0R4, T2 N 0P1 R. I, = NIPIRb. F. = N 1P2R11. fc N,P1R,1. I = 1 7 N2P'R11. Ig = N2P3Rh. T. = N3P,R,,. I = N1PRh and 'I' N1P3R1 , where R h = Recommended dose of Rhi:obiu,n (6 kg R1 , hi'). N, ) = No application (0 kg N ha 4 ), N, = 50% less than recommended dose (10 kg N ha 1). N 2 = Recommended dose (20 kg N ha 4 ). N 3 = 50% higher than recommended dose (30 kg N ha 4 ), I' ( ,= No application (0kg P 205h1'). P, = 50% less than recommended dose (20 kg 1 1 20< ha 4 ), 1 1 2 = Recommended dose (40 kg P 205 ha4) and P 3 = 50% higher than recommended dose (60 kg P 2 O ha4 ). The experiment was set up in Randomized Complete Block l)esign with three replications. Results revealed that the treatment N 2 P,R1, ( 20 kg N hi' and 40 kg P 20c ha 4 with 6 kg mesorhizohium hi') obtained the highest values in all the growth, yield and yield contributing parameters except plant height. the highest value of which was obtained by the treatment N 3 P2 R,1 (30 kg N hit and 40 kg P 205 hi' with 6 kg mesorhizohium). The corresponding lowest values in all the growth. yield and yield contributing parameters were obtained by the control treatment (N 0P0R0 ). Whereas the only application of mesorhizobiuin inocula at the rate of 6 kg ha 4 under the treatment Rh obtained higher values than that of control but lower than each of other treatments. The treatments N 2 P3R,, N3P'Rh obtained much higher values than that of control and R,, treatment but lower than that ofN2P2Rh in all the parameters studied. Again, the treatments N,PR,1 . N 2 P,Rh and N3P I Rh obtained a hit higher values than that of control and R11 treatments. The highest number of nodules plani' obtained by the treatment N 2P2 R,, at 50 DAS was 26.28 and the lowest of the same obtained by the treatment N 0 P0 R0 was 16.13 whereas the Rh obtained the same as 21.88. 23.67. 24.25 and 22.74 were the number of nodules plant' obtained by the treatments N2P3Rh N3P2Rh and N 3 P3 R,, respectively. The highest 1000 seed weight (118.15 g) was also achieved by NiPl( h where the lowest (108.65 g) was from N,P, Rh. Accordingly the highest seed yield was 1.28 t obtained by the treatments N 2 P2 R,, the lowest seed yield hi' was 0.29 t. obtained by the control and the seed yield hi' eg. 1.03 t hi'. ) :Rh and N3P3Rh respectively. Here the treatments. N,P2Rh.. N1P 1.11 t hi' and .97 t hi1 were obtained by the treatments N 6 P2 Rh.. N31 1 R,1 and N 3 P,R,ohtained the seed yield ha4 was 0.85 t. 0.73 t and 0.61 t respectively.