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Growth and Yield Performance of BINAdhan-5 in Boro Season as Affected by Nitrogen Rate

A. T. M. Hamidullah
M.S. Student
F.H. Hall , BAU , Mymensingh

M.S. Rahman
CSO (RC)
BINA , Mymensingh

M. N.H. Miah
PSO
BINA , Mymensingh

M.A. K. Miah
SO
BARI, RARS , Jessore.

Abstract/ Executive Summary:

Binadhan-5 with three nitrogen doses (80, 120 and 160 kg ha ^{- 1} ) showed that plant height and total dry matter increased progressively with the advancement to maturity for all doses of nitrogen. Tillers hill ^{- 1}and leaf area index increased up to 60 DAT and after that the earlier was stable but the later was decreased gradually. Nitrogen @ 120 kg ha^{- 1} produced the highest grain yield (6.28 t ha ^{- 1} ).

Keywords: Growth, Yield, Nitrogen

Location: Bangladesh Institute of Nuclear Agriculture ), Mymensingh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

.To investigate the growth and yield phenomena of Binadhan-5 at varying nitrogen rates.

Methodology:

The experiment was conducted at the farm of Bangladesh Institute of Nuclear Agriculture , Mymensingh. The nutrient status of the field soil were organic carbon 0.55%, tot al N 0.06%, soluble P 8.88 ppm, exchan geable K 0.09 meq/1 OOg, available S 15 ppm and Zn 1.50 ppm . The treatments consisted of three N rates v i z., 80 (N₈₀), 120 (N ₁₂₀) and 160 (N ₁₆₀ ) kg ha^{- 1} . The N rate was started with 80 k g ha^-1 because m any investigators suggested it to be the lowest level of most of the HYV varieties of rice ( ldris and Matin , 1990, Hossain et ul., 1 995, Bali and Singh , 1996). The other nutrients were applied @ 45 , 40, I 0 and I kg ha^{- 1} of P₂0₅ , K₂ 0, S and Zn , respectively (Anon.1 997 ) . The unit plot size was 5 m x 4 m. The experiment was laid out in a randomized complete block design with four replications. except pt N, other fertilizers were applied once as basal and N were applied in three equal split s at 15, 30 and 45 DAT. Forty five day-old seedling @ three seedlings hill^{- 1} were transplanted wit h 20 cm x 15 cm spacing. Crop management practices like weeding , insecticides application, irrigation , data recording and harvesting were done in time. Samplings for growth data were done at 30, 60 and 9 DAT taking I0 random hills from each plot. From these samples plant height , total tillers hill^-1 , leaf area index and total dry matter hill-1 were recorded. At maturity, yield and yield components were taken from an other ten hills.Grain rain and straw yields were recorded from central 12 sq. m of each plot excluding sampled areas for growth and yield components data collection.

Source of Information: Bangladesh J . Nuclear Agric. 21 & 22 : 93-98 , 2006; ISSN 0258-7130

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results of the experiment preliminary indicated that N rate 120 kg ha^-1 was optimum for Binadhan-5 and it must be proved further with several similar experimental results for final conclusion.

Knowledge Management: Journal