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Performance of Waste Concern Organic Fertilizer on the Growth and Yield of Rice

Pranesh Kumar Saha
Principle Scientific Officer
Soil Science Division, BRRI Gazipur

M. Rafiqul Islam
Principal Scientific Officer
Soil Science Division, BRRI Gazipur

Masuda Akter
Senior Scientific Officer
Soil Science Division, BRRI Gazipur

S. Kaiser Zaman
Chief Scientific Officer
Soil Science Division, BRRI Gazipur

Abstract/ Executive Summary:

West Concern, another organic fertilizer, gave 0.54 t/ha greater yield than the control plot at BRRI farm, Gazipur at BRRI, but no yield benefit due to the organic fertilizer at BRRI Regional Station, Rangpur in T. Aman season.

Keywords: West concern organic fertilizer, Economically viable fertilizer, MBCR, Yield of rice

Location: Bangladesh Rice Research Institute farm, Gazipur and BRRI R/S farm, Rangpur

Start Date: 01-07-2008

End Date: 30-06-2009

Program Area: Crop-Soil-Water Management

Commodity: Manures

Objectives:

To evaluate the performance of this fertilizer on the growth and yield of T. Aman and Boro rice

Methodology:

Six treatment combinations were tested: T₁ = Abs. control (Native nutrients), T₂ = NPKS @ 80-35-40-10 kg /ha (T. Aman) /@ 120-15-50-10 kg /ha (Boro), T₃ = T₂ + 1 t WCOF/ha, T₄ = 75% of T₂ + 1 t WCOF/ha, T5 = 50% of T₂ + 2 t WCOF/ha and T₆ = 2 t WCOF/ha. The experiments were laid out in a randomized complete block design with four replications. The sources of nutrients N, P, K, and S were urea, TSP, MP, and gypsum respectively. All TSP, MP, Gypsum, and WCOF were applied at the final land preparation. Urea was applied into three equal splits: 1/3 N as basal, 1/3 N at early tillering stage and the remaining 1/3 N at 5-7 days before panicle initiation stage. BRRI dhan31 and BRRI dhan46 were used as test crop in T. Aman season at Gazipur and Rangpur, respectively. In Boro season at the both locations BRRI dhan29 were used. Forty days old 2-3 seedlings/hill were transplanted with 20 cm x 20 cm spacing. Necessary intercultural operations were done as and when required. At maturity, the crop was harvested from 5 m²area at the centre of each plot and grain yield was adjusted to 14% moisture. The plant height, tiller no., panicle no., grain and straw yields were recorded. The obtained data were statistically analyzed following IRRISTAT version 4.1 (IRRI, 1998). Finally economic analyses were done for added return, net return, and marginal benefit cost ratio (MBCR) for T. Aman season. In Boro season straw and grain samples were collected for chemical analysis. Nitrogen, P, K and S were determined following the standard procedure. Nutrient uptake was determined.

Source of Information: Proceedings of BRRI Annual Internal Research Review, 2008- 2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In T. Aman season, application of WCOF in combination with chemical fertilizer significantly increased the plant height, panicle number, grain and straw yield of BRRI dhan31 and BRRI dhan46 over control at both Gazipur and Rangpur locations. At BRRI farm, Gazipur, the highest grain yield of 3.66 t/ha was obtained with the treatment T₅ (50% of T₂ + 2 t WCOF/ha). Percent grain yield increase over control varied from 20 to 35 among the treatments. From the results of two locations it is observed that the application of WCOF @1 t/ha +75% of T₂ (NPKS @ 80-35-40-10 kg /ha,) produced reasonable higher yield. It is appeared from the findings that the treatment T4 (WCOF @ 1 t/ha + 75% of T₂) and T₅ (50% of T₂ + 2 t WCOF/ha) may be the most economically viable fertilizer management packages for T. Aman rice cultivation at BRRI farm Gazipur. At Rangpur, the gross return from the control plot was only about Tk.87100/ha and the application of fertilizer increased the gross return, which ranged from Tk.90540/ha to Tk.104140/ha. From the economic analysis it is appeared that the treatment T₄ (WCOF @ 1 t/ha + 75% of T₂) may be recommended for Rangpur region. Applied fertilizer significantly increased the grain yield of Boro rice at both locations . At BRRI farm, Gazipur, the highest grain yield of 4.59 t/ha was obtained with the treatment T₃ (100% of T₂ + 1t WCOF/ha) From the results, it is observed that in Boro season at Gazipur site using T₄ (75% of T₂ + 1 t WC/ha) treatment, we can save 25% chemical fertilizer but at Rangpur site T₂ (NPKSZn @ 120-15-50-10-2 kg /ha) i.e. 100% chemical fertilizer produced the highest yield.

Knowledge Management: Report/Proceedings