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Use of Fresh Poultry Litter for Growing Dry Season Irrigated Rice

J C Biswas
Agronomy Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh.

B C Roy
Agronomy Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh.

M A Badshah
Agronomy Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh.

G J U Ahmed
Agronomy Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh.

M R Mandal
PPRID, BRRI, Gazipur 1701.

Abstract/ Executive Summary:

Field experiments were (2007 and 2008) conducted at the Bangladesh Rice Research Institute (BRRI) Farm, Gazipur during two consecutive Boro seasons of 2007 and 2008 to find out the feasibility of using fresh poultry litter (PL. 03 day-old droppings) for rice cultivation. Fresh PL was used in different rates along with variable application schedules and compared with BRRI fertilizer dose(T₁). Seedling mortality was, also evaluated. The experiment was laid out in randomized block design with three replications. There was no definite seedling mortality trend because of fresh PL addition compared to control. Grains panicle^-1 did not vary significantly due to fresh PL addition, but the highest number of panicles m^-2 was observed with T₁. Use of fresh PL @ 2.5 t ha^-1 as basal and 1.25 t ha^-1 each at the active tillering (AT) stage and 15 days before panicle initiation (DBPI) stage resulted in Tk.2826 ha^-1 additional income over chemical fertilizer-based rice cultivation. Although BRRI recommended fertilizer dose gave higher grain yield, but rice could be cultivated without chemical fertilizers if fresh PL is used @ 5 t ha^-1 for about 6 t ha^{-1 _of} grain yield in the Boro season.

Keywords: Poultry litter, See rate, Fertilizer dose, Rice yield.

Location: Bangladesh Rice Research Institute Farm, Gazipur

Start Date: 00-00-2007

End Date: 00-00-2008

Program Area: Crop-Soil-Water Management

Commodity: Manures

Objectives:

To find out on the feasibility of using fresh poultry litter (PL) as a source of plant nutrients in rice cultivation

Methodology:

Field experiments were conducted at the Bangladesh Rice Research Institute (BRRI) Farm, Gazipur during two consecutive Boro seasons of 2007 and 2008. Initial soil nutrient status was: 0.16% N, 9 ppm P and 0.19 meq 100 g^-1 soil. Fresh poultry litter (PL, 0-3 day-old droppings) at variable rates were used and compared with BRRI recommended fertilizer dose. The treatments were: T_I) BRRI recommended fertilizer dose (120-17-40-10 kg ha_-1 of N-P-K-S, respectively), T₂) 2.5 t ha^-1 of fresh PL as basal and 1.25 t ha^-1 of fresh PL each at active tillering (AT) stage and 15 days before panicle initiation (DBPI) stage, T₃₎ 2.5 t^-1of fresh PL as basal and 0.5 t^-1 of fresh PL each at AT and 15 DBPI stages, T₄₎ 3.5 t^-1 of fresh PL as basal, T₅) 5.0 t^-1of fresh PL as basal and T₆) Control (no PL and no fertilizers). Seedling mortality was also evaluated against 3 and 5 t ha^-1basal application of fresh PL. Single seedlings were transplanted at 0, 3, 6, and 9 days after fresh PL application for morality determination. No additional chemical fertilizers were used in PL treated plots for growing rice. In all cases, the treatments were assigned in randomized complete block design with three replications. Unit plot size was 4- x 3-m. All triple super phosphate (TSP), muriate of potash (MP) and gypsum were applied basally and urea in three equal splits at 15-20 days after transplanting (DAT), 30-35 and 45-50 DAT for T_I. Forty-five-day-old seedlings of BRRI dhan29 were transplanted on the third week of January in both the years at 20 x 20-cm spacing. According to treatments, fresh PL was top dressed by placing it at the base of hill followed by hand mixing with soil. There was always 3-5 cm standing water, especially after PL application for about 14 days. Plots were kept weed free up to 50 DAT by hand weeding. Insecticide was applied as and when necessary. Data on seedling mortality, plant height. panicles/m², grains/panicle, sterility percentage, and grain and straw yields were recorded. Grain yields were adjusted at 14% moisture content. Constant straw weights were recorded after repeated sun drying. Collected data were analyzed for analysis of variances following IRRISTAT and means were compared by DMRT. Simple economic analysis was done to assess profitability of fresh PL considering unit price of fertilizers. paddy and fresh PL.

• Loss or gain due to fresh PL use over BRRI recommended fertilizer dose was calculated as follows: (Fertilizer cost - PL cost) - (Grain yield reduction in kg ha^-1) x (Paddy price in Tk kg^-1)

• Profit due to fresh PL use over control was calculated as follows: (Additional grain yield in kg^-1) X (Paddy price in Tk kg^-1) - (Cost of fresh PL)

Source of Information: Bangladesh Rice J. 14 (I & 2): 27-31.2008

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the present investigation it is concluded that rice could be cultivated without chemical fertilizers if fresh poultry litter is used @ 5t /ha for about 6 t/ha grain yield in Boro season.

Knowledge Management: Journal