Response of mungbean (Vigna radiata L.) to nitrogen and irrigation management

Response of mungbean (Vigna radiata L.) to nitrogen and irrigation management

2008

REP.MB-3205

An experiment was conducted at the experiment field of the Department of Agronomy, Sher-e-Bangla Agricultural University; Dhaka, Bangladesh to evaluate the effect of nitrogen and irrigation managements on dry matter accumulation and yield of mungbean (Vigna radiata L.) cv. BARI mung-5 during the period from March to May 2006. The trial comprised of ten treatments such as T1=No fertilizer and irrigation (control), T2=20 kg N ha-1 as basal, T3=20 kg N ha-1 as basal+one irrigation at flower initiation stage, T4=30 kg N ha-1 as basal, T5=30 kg N ha-1 as basal+one irrigation at flower initiation stage, T6=40 kg N ha-1 as basal, T7=40 kg N ha-1 as basal+one irrigation at flower initiation stage, T8=10 kg N ha-1 as basal and 10 kg N ha-1 as split+one irrigation at first flowering stage, T9=15 kg N ha-1 as basal and 15 kg N ha-1 as split+one irrigation at flower initiation stage and T10=20 kg N ha-1 as basal and 20 kg N ha-1 as split+one irrigation at flower initiation stage. Irrespective of treatment differences the mungbean plant as a pulse crop showed a lag phase for slow dry matter production in early growth stage (up to 40 DAS) that increase up to harvest. Application of 30 kg N ha-1 as basal with one irrigation at flower initiation stage (35 DAS) significantly improved dry matter accumulation. This greater dry matter production eventually partitioned to pods per plant, seeds per plant and 1000-seed weight which is get her resulted with maximum seed yield per plant (5.53 g) or per hectare (1.65 t). A functional positive relationship was observed in with pods per plant and seeds per plant.

v.3(1):40-43, AMERICAN-EURASIAN JOURNAL OF SCIENTIFIC RESEARCH

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