A field experiment was conducted at the research farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh to study the response of five chickpea (Cicer arietinum L) varieties to Rhizobium inoculant and mineral nitrogen on nodulation, nitrogen fixation, dry matter production, nitrogen (N) uptake, yield and quality of the crop. Among the treatments, Rhizobium inoculant in combination with Barichola-5 in absence of nitrogen performed best in recording number and dry weight of nodules and nitrogenase activity of chickpea. Barichola-2 in presence of 100 kg N/ha performed best in recording dry weight of shoot and root, number of branches, chlorophyll a and b, nitrogen content in shoot, nitrogen uptake by shoot, protein content in seed, number of seeds per plant, number of pods per plant, 1000-seed weight and stover and seed yields. The performances of Barichola-5 and Barichola-3 in presence of Rhizobium inoculant and in the absence of mineral nitrogen were comparable to Barichola-2 in most of the parameters of the crop studied. Keywords: Rhizobium inoculant, Nitrogen, ChickpeaDOI: http://dx.doi.org/10.3329/bjm.v24i2.1261 Bangladesh J Microbiol, Volume 24, Number 2, December 2007, pp 146-150 DOI: http://dx.doi.org/10.3329/bjm.v24i2.1260
A field experiment was conducted at the research farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during June 2006 to December 2007 to find out the effect of planting time and nitrogen fertilization on the yield and seed quality of T. Aman rice. BR11 ( Mukta) was transplanted at different dates from 5 July to 19 August at 15 days interval. The rates of N used in the experiment were 80, 100, 120, and 140 kg N/ha,. Plant height, number of tillers/hill, grain yield, and yield components parameters varied significantly due to transplanting of rice at variable dates. The optimum time of planting was found to be 4 August compared to other dates of transplanting. Result indicates that this variety planted in optimum time gave higher yield with high quality of rice seed. In comparison to early and late planting, earlier planting of the variety was better as the late planted crops were severely affected by adverse environmental condition during reproductive phase. The poor grain yield in early or late planting was due to higher percentage of spikelet sterility. The varieties responded positively with increment of N levels upto 120 kg N/ha. The higher number of panicles/m2, lower percentage of unfilled grain, and heavier individual grain contributed to increase grain yield of this verity. It is, therefore, suggested to transplant BR11 rice in the first week of August in Aman season. The application of N of 100 -120 kg/ha with three splits is optimum for achieving higher grain yield and better quality of rice seed. DOI: http://dx.doi.org/10.3329/bjar.v38i4.19660 Bangladesh J. Agril. Res. 38(4): 673-688, December 2013
The response of mukhi kachu (Colocasia esculenta L.) cultivars (Bilashi and local variety) to inorganic (Urea 140 kg ha-1, TSP = 95 kg ha-1, MP= 145 kg ha-1 and Urea 150 kg ha-1, TSP= 100 kg ha-1, MP= 150 kg ha-1) and organic (Cowdung 5,000 kg ha-1, Mustard oil cake 100 kg ha-1 and Poultry dropping 8000 kg ha-1) fertilizers was determined at the farm of Patuakhali Science and Technology University, Bangladesh. Different levels of organic and inorganic fertilizers showed significant effect on number of cormels, dry weight of cormels and yield of the crop. Organic fertilizers produced significantly higher yields of mukhi kachu over the inorganic fertilizers. The variety Bilashi produced the highest yield (25.66 t ha-1) with the application of mustard oil cake.
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