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Performance of Local Aromatic Rice Varieties Under Different Fertilizer Management Practices

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

M.O. Faruq
Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.M. Aktar
Department of Agronomy, 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 July to December of 2008 to observe the influence of organic, inorganic and integrated management of fertilizers on the yield and yield contributing characteristics of local aromatic rice. The experiment was laid out in a randomized complete block design with three replications. The experiment comprised of five treatments viz., control (no fertilizer), recommended dose of chemical fertilizers (NPKSZn), well-decomposed cow dung @ 5 t ha^-1, well-decomposed cow dung @ 5 t ha^-1 + recommended dose of chemical fertilizers (NPKSZn), well-decomposed cow dung @10 t ha^-1, well-decomposed cow dung @10 t ha^-1+ recommended dose of chemical fertilizers (NPKSZn) and five local aromatic rice varieties namely, Kataribhog, Badshabhog, Radhunipagal, Kalizera and Shakhorkora. 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, panicle length and grains panicle^-1 showed higher value with the incorporation of cow dung in combination with recommended dose of chemical fertilizers. Grain yield differed significantly among the varieties. Cow dung @ 5 t ha^-1 in combination with recommended chemical fertilizers (NPKSZn) produced the highest grain yield.

Keywords: Fertilizer, Cow dung, Yield, Aromatic rice.

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

Start Date: 00-07-2008

End Date: 00-12-2008

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To study the effects of different organic and inorganic fertilizers on grain yield of aromatic rice varieties.

Methodology:

The experiment was conducted at the Hajee Mohammad Danesh Science and Technology University Farm, Dinajpur, Bangladesh during July to December of 2008. 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 three replications. The experiment consisted of five fertilizer treatments viz., Control (T₁), Recommended dose of NPKSZn fertilizers (T₂), well-decomposed cow dung @ 5 t ha^-1 (T₃), well-decomposed cow dung @ 5 t ha^-1 + recommended dose of chemical fertilizers (NPKSZn)(T₄), well-decomposed cow dung @10 t ha^-1 (T₅), well-decomposed cow dung @10 t ha^-1+ recommended dose of chemical fertilizers (NPKSZn) (T₆) and five local aromatic rice varieties namely, Kataribhog (V₁), Badshabhog (V₂) Radhunipagal(V₃), Kalizera(V₄), Shakhorkora (V₅). The unit plot size was 4.0m X 2.5m. According to the experimental specification, no fertilizer was used under control treatment (T₁). P, K, S and Zn were applied as basal through TSP 65 kg, MOP 110 kg, gypsum 87 kg and ZnSO₄ 2.25 kg ha^-1 at final land preparation. Well decomposed sun dry cow-dung @ 5 and 10 t ha^-1 was mixed in the specific plots at the time of final land preparation. Nitrogen was applied in the form of urea @ 138 kg ha^-1 in two equal splits at 20 and 45 days after transplanting. Thirty-day-old seedlings were transplanted in the plots at a spacing of 20 cm X 15 cm using 3 seedlings hill^-1 on 15 July 2008. All other cultural practices were done uniformly as per recommendation. Whole plots were harvested to obtain grain yield.

Source of Information: J. Agrofor. Environ. 3 (1): 81-84, 2009; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Local variety is more responsive to organic fertilizer in respect of growth and yield. On the other hand local variety was susceptible to lodging due to sole application of inorganic fertilizer. Therefore, it is concluded that cow dung @ 5 t ha^-1 with recommended dose of NPKSZn fertilizers may be used to get maximum yield of local aromatic rice.

Knowledge Management: Journal