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Effect of Urea Super Granules, Prilled Urea and Poultry Manure on the Growth Performance of Transplant Aman Rice Varieties

M.H. Kabir
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202

M.A.R. Sarkar
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202

A.K.M.S.H. Chowdhury
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh in transplant Aman season of 2008 to find out the effect of urea supergranules (USG), prilled urea (PU) and poultry manure (PM) on the growth performance of transplant Aman rice varieties. Two transplant Aman rice varieties viz. BRRI dhan41 and BRRI dhan46 and ten levels of integrated nutrient management encompassing USG, PU and PM were tested following randomized complete block design with three replications. Data were taken at 75 days after transplanting (DAT). The growth parameters were considered viz. plant height, number of tiller hill^-1, leaf area, dry matter, leaf area index (LAI) and crop growth rate (CGR). Grain yield was calculated for comparing the corresponding growth parameters. In case of variety, fertilizers and interaction most of the growth parameters were significantly influenced at 1% level of significance. The highest grain yield (5.27 t ha^-1) was obtained from variety BRRI dhan41 and full dose of USG (1.8g) and other inorganic fertilizers, which was obtain from due to might be the highest plant height (84.08cm), tiller number (13.73), leaf area (4354.37 cm²), dry matter (37.53), lower LAI (0.61) and highest CGR (0.0088) at 75 DAT and the lowest yield was obtained in the BRRI dhan46 and control treatment. It was assessed that a considerable portion (31.25%) of PU nitrogen could be saved by using USG (1.8g) together with other inorganic fertilizers or with PM at 2.5 t ha^-1.

Keywords: Urea supergranules, Prilled urea, Poultry manure, Growth performance, Transplant Aman rice variety

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-07-2008

End Date: 00-12-2008

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To observe the integrated nutrient management by using USG, PU and PM on the growth performance of transplant Aman rice.

Methodology:

The experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh in transplant Aman season 2008. The experiment consisted of two transplanted Aman rice varieties viz. V₁=BRRI dhan41 and V₂=BRRI dhan46; and ten levels of integrated nutrient management viz. T₁ = Control (No PM and NPKSZn fertilizers), T₂ = PM at 5 t ha^-1,T₃ = PM at 2.5 t ha^-1, T₄= Recommended dose of PU and other inorganic fertilizers (i.e. 80,60,40,10,5 kg of N, P₂O₅, K₂O, S, ZnSO₄, respectively ha^-1), T₅= Full dose of USG and other inorganic fertilizers (i.e. 55,60,40,10,5 kg of N, P₂O₅, K₂O, S, ZnSO₄, respectively ha^-1), T₆ = ½ PU and PKSZn + PM at 2.5 t ha^-1, T₇ = 0.9 g USG + PM at 2.5 t ha^-1, T₈ = 0.9 g USG + PM at 5 t ha^-1, T₉ = 1.8 g USG (full dose for transplant Aman) + PM at 2.5 t ha^-1 and T₁₀ = Full dose of PU (for transplant Aman) + PM at 2.5 t ha^-1. The experiment was laid out in a randomized complete block design with three replications. The unit plot size of the experiment was 4.0m × 2.5m. Thirty- day old seedlings were transplanted at spacing of 20 cm×20 cm with two seedlings hill^-1. All the fertilizers except prilled urea were applied as basal at final land preparation. Prilled urea was top dressed in three equal splits at 15, 30 and 45 DATs. Gap filling, weeding, irrigation and other necessary intercultural operations were done in proper time. Data on growth parameters viz., plant height, tiller number, leaf area, dry matter, leaf area index and CGR were collected at 75 DAT. The crops were harvested at full maturity. The maturity of crops was determined when some 80% of the grains became golden yellow in colour. Five sample plants were randomly selected and uprooted prior to harvesting from each plot excluding border rows to record data on yield contributing characters. Central 5 m² area in each plot was harvested to record grain and straw yields. Grain and straw yields plot ^-1 were recorded after threshing by a pedal thresher, winnowing and sun drying properly. The yield values were adjusted to 12% moisture content and converted to t ha^-1. All the collected data were analyzed following standard statistical procedure and differences among treatment means were adjudged by Duncan’s Multiple Range Test.

Source of Information: J. Agrofor. Environ. 4 (1): 63-66, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

In transplant Aman season, BRRI dhan41 can be successfully cultivated with full dose of USG (1.8g) and other inorganic fertilizers (PKSZn) to obtain the highest grain yield which effects in the growth performance. It is also observed that in transplant Aman season full dose of USG with other inorganic fertilizers (PKSZn) showed the best growth performance.

Knowledge Management: Journal