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Performance of Modern Aromatic Rice (cv. BRRI Dhan50) Under Different Fertilizer Management Practices in Boro Season

M.F. Hossain
Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.A. Hasan
Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.H.A. Amin
Department of Agroforestry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the Hajee Mohammad Danesh Science and Technology University Farm, Dinajpur, Bangladesh during boro season (January to May) of 2009 to observe the influence of fertilizers on the yield and yield contributing characters of modern aromatic rice cv.BRRI dhan50 (Banglamati). The experiment was laid out in a randomized complete block design with four replications. The experiment comprised of six fertilizer treatments viz., i) Control (no fertilizer), ii) general recommended dose of chemical NPKSZn fertilizers (Urea @150 kg ha^-1, TSP @60 kg ha^-1, MOP @ 50 kg ha^-1, Gypsum @ 30 kg ha^-1, ZnSO₄ @ 2.25 kg ha^-1), iii) well-decomposed cow dung @ 5 t ha^-1, iv) well-decomposed cow dung @ 5 t ha^-1 + recommended dose of NPKSZn chemical fertilizers, v) 150% of recommended N fertilizer with recommended PKSZn fertilizers and vi) 200% of the recommended N fertilizer with recommended PKSZn fertilizers. All the fertilizer treatments produced significantly higher grain yield than control treatment. Growth attributes of aromatic rice such as tillers hill-1, fertile tillers hill^-1, spikelets panicle^-1, grains panicle^-1 and 1000-grains weight showed higher value with the incorporation of cow dung in combination with recommended dose of chemical fertilizers. Cow dung @ 5 t ha^-1 in combination with recommended chemical fertilizers (NPKSZn) produced the highest grain yield that was statistically similar to the application of 200% of the recommended N fertilizer with recommended PKSZn fertilizers.

Keywords: Fertilizer, Cow dung, Yield, Aromatic rice, BRRI dhan50

Location: Hajee Mohammad Danesh Science and Technology University Farm, Dinajpur, Bangladesh

Start Date: 00-01-2009

End Date: 00-05-2009

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To study the effects of fertilizers on yield and yield attributes of newly released aromatic rice cv. BRRI dhan50 in boro season.

Methodology:

The experiment was conducted at the Hajee Mohammad Danesh Science and Technology University Farm, Dinajpur, Bangladesh during boro season (January to May) of 2009. The experimental site was a medium high land with sandy loam soil having a pH value of 6.0. The experiment was laid out in a randomized complete block design with four replications. The experiment comprised of six fertilizer treatments viz., i) Control (no fertilizer) (T₁), ii) general recommended dose of chemical NPKSZn fertilizers (Urea @150 kg ha^-1, TSP @60 kg ha^-1, MOP @ 50 kg ha^-1, Gypsum @ 30 kg ha^-1, ZnSO₄ @ 2.25 kg ha^-1) (T₂), iii) well-decomposed cow dung @ 5 t ha^-1(T₃), iv) well-decomposed cow dung @ 5 t ha^-1 + recommended dose of NPKSZn chemical fertilizers(T₄), v) 150% of recommended N fertilizer with recommended PKSZn fertilizers(T₅) and vi) 200% of the recommended N fertilizer with recommended PKSZn fertilizers(T₆). The unit plot size was 4.0m x 2.5m. According to the experimental specification, no fertilizer was used under control treatment (T₁). Phosphorous, K, S and Zn were applied as basal through TSP, MOP, gypsum and ZnSO₄ at final land preparation as per treatments. Well decomposed sun dry cow-dung @ 5.0 t ha^-1 was mixed in the specific plots before 7 days of final land preparation. Nitrogen fertilizer was applied in the form of urea in two equal splits at 20 and 45 days after transplanting. Forty-day-old seedlings were transplanted in the plots at a spacing of 20 cm x 15 cm using 3 seedlings hill^-1 on 15 Januay, 2009. All other cultural practices were done uniformly as per recommendation. Five hills from each plot were collected for data collection and whole plots were harvested to obtain grain and straw yields. . Data were analyzed following the ANOVA technique and mean differences were adjudged with Duncan’s Multiple Range Test (DMRT).

Source of Information: J. Agrofor. Environ. 4 (1): 147-149, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

All the fertilizer treatments produced significantly higher grain yield than control treatment. Growth attributes of aromatic rice such as tillers hill^-1, fertile tillers hill^-1, spikelets panicle^-1, grains panicle^-1 and 1000-grains weight showed higher value with the incorporation of cow dung in combination with recommended dose of chemical fertilizers. Cow dung @ 5 t ha^-1 in combination with recommended chemical fertilizers (NPKSZn) produced the highest grain yield that was statistically similar to the application of 200% of the recommended N fertilizer with recommended PKSZn fertilizers.

Knowledge Management: Journal