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Effects of Different Aged Poultry Litter on the Yield and Nutrient Balance in Boro Rice Cultivation

A.T.M. S. HOSSAIN
Soil Science Division, Bangladesh Rice Research Institute (BRRI), Gazipur

F. RAHMAN
Soil Science Division, Bangladesh Rice Research Institute (BRRI), Gazipur

P. K. SAHA
Soil Science Division, Bangladesh Rice Research Institute (BRRI), Gazipur

A.R.M. SOLAIMAN
Professor, Department of Soil Science, Banghabandhu Sheikh Mujibur Rahman, Agricultural University (BSMRAU), Gazipur, Bangladesh.

Abstract/ Executive Summary:

A two years’ field trial was conducted to evaluate the effect of poultry litter (PL) incorporation of different ages on the yield, nutrient uptake and nutrient balance in Boro rice at BRRI experimental farm, Gazipur (AEZ-28 and land type-High Land) during 2004-05 and 2005-06 Boro seasons. Eight treatment combinations with different aged PL and chemical fertilizers along with a control treatment (no fertilizer) were tested. The treatment combinations were 0, 30, 60, 90, and 120 days’ aged poultry litter, farmers’ 135 days aged poultry litter and 50% of soil test based (STB) chemical fertilizers. All PL treatments received poultry litter 3 t/ha and 50% of STB chemical fertilizers. In both years, 30 days old PL produced significantly higher rice yield with higher nutrient uptake.

Keywords: Poultry litter, Aging, Grain yield, Nutrient balance.

Location: BRRI experimental farm, Gazipur

Start Date: 00-00-2004

End Date: 00-00-2006

Program Area: Crop-Soil-Water Management

Commodity: Manures

Objectives:

A study was undertaken to determine the optimum duration for decomposition of poultry litter and its effect on yield, nutrient uptake and nutrient status of wetland rice soil.

Methodology:

Field experiments were conducted at BRRI experimental farm, Gazipur during Boro 2004-05 and 2005-06. The soil of the experimental field was clay loam in texture having pH 6.55, organic matter 1.62 %, total N 0.11%, available P 4.4 µg/g, exchangeable K 0.17 meq/l00g soil, available S 4.3 µg/g and available Zn 1.6 µg/g. Collection and decomposition of poultry litter Poultry litter was collected at different days and allowed for natural decomposition before setting the experiment in the field. The litter was collected from a selected layer type commercial poultry farm in Gazipur. Fresh poultry litter (one day after dropping) was collected from five selected days in every month. The collected poultry litter was hipped in pits in every month for natural decomposition under shaded condition. The experiment comprised eight treatments including control. The following treatments were tested: T1 = No PL and no chemical fertilizer (CF), T2 = fresh PL, T3 = 30 days old PL, T4 = 60 days old PL, T5 = 90 days old PL and T6 =120 days old PL, T7 = Farmer’s preserved PL, and T8 = 50% STB chemical fertilizer dose. Poultry litter was applied @ 3 t/ha (OD basis) only in Boro season before 2-3 days of transplanting. All treatments received a blanket dose of 50% STB chemical fertilizer (N-P-K-S-Zn@ 63-17-25-12.5-0 kg/ha) except T1 and T8. The sources of N, P, K, and S were urea, triple super phosphate, muriate of potash, and gypsum, respectively. One-third of N and the whole amount of P, K, and S were applied at final land preparation. The remaining two-thirds N were applied in two equal installments at 25-30 days after transplanting (DAT) and at 7 days before panicle initiation stage. In Boro season, 40 days old two rice seedlings of BRRI dhan29 were transplanted at 20 cm × 20 cm spacing. The design of the experiment was RCBD with 3 replications. Appropriate cultural and management practices including plant protection measures were followed during each growing season. The individual plot size was 4 m × 4 m. The crops were harvested at maturity from 2.5 m × 2 m area. Grain yields were recorded at 14 % moisture and straw yields at sun dry basis.

Chemical analysis of poultry litters, rice grain, and straw Different aged decomposed poultry litter samples; rice grain and straw samples of Boro rice were analyzed for determination of N, P, K, and S in the Soil Science Laboratory, BRRI, Gazipur. For the P, K, and S analysis, samples were digested with di-acid mixture of nitric and perchlororic acid at the ratio 5:2 following the method described by Yoshida et al. (1976). The N analysis was made by Micro-Kjeldahl distillation method (Yoshida et al., 1976).

Source of Information: Bangladesh J. Agril. Res. 35(3) : 497-505, September 2010 ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

For sustaining higher rice production, use of only chemical fertilizer would not be a judicial approach. Integrated nutrient management approach is necessary for higher rice yield as well as maintaining soil fertility. The two years results indicated that, thirty days aged PL with 50% STB chemical fertilizer was superior and it may be recommended for better rice production.

Knowledge Management: Journal