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Effect of Poultry Litter and Bulking Agents Ratio on the Yield of Onion

A. F. M. S. Ahsan
SO
RARS, Hathazari, Chittagong

A. K. M. M. Rahman
SO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

Field experiment was conducted at RARS, Hathazari, Chittagong during rabi season of 2008-09 to find out the suitable ratio of poultry litter and bulking agents and their effect on onion yield. Nine treatments were used viz. T₁- Cowdung, T₂- Poultry manure alone, T₃- PL+ash (5:1) T₄- PL+ash (4:1), T₅- PL+ash (3:1), T₆- PL+sawdust (5:1), T₇- PL+sawdust (4:1), T₈- PL+sawdust (3:1) and T₉- Absolute control. Each plot was fertilized with a blanket dose of 120, 40, 75, 3, 1.5 kg and 5 t of N, P, K, Zn, B and organic manure ha^-1. The result showed that 3:1 ratio of PL and ash mixture produced higher bulb yield (15.5 t/ha), which was significantly similar with T₈ (3:1 ratio of PL sawdust) and lowest (2.3 t/ha) from T₉. The application PL and ash mixture as a 3:1 ratio (T5) produced 16.5 and 15% more bulb yield over T₁ and T₂, respectively. Likewise, application PL and sawdust mixture as a 3:1 ratio (T₈) produced 14 and 12.6% more bulb yield over T₁ and T₂, respectively. The result also reveled that yield and yield contributing characteristics of onion was maximum when the application of PL and bulking agent's mixture as a ratio of 3:1 (T₅ and T₈) than the other treatments.

Keywords: Poultry litter, Bulking agents, Yield, Onion

Location: RARS, Hathazari, Chittagong

Start Date: 10-11-2008

End Date: 12-03-2009

Program Area: Crop-Soil-Water Management

Commodity: Onion

Objectives:

To find out the suitable ratio of poultry litter and bulking agent for improving the quality of poultry manure and to determine their effect on onion yield .

Methodology:

Field experiment was conducted at RARS,Hathazari, Chittagong during the rabi season of 2008-09. The tested crop variety was BARI Peaz-1. The experiment was laid out in a Randomized Complete Block (RCB) design with three replications. There were 9 treatments viz. T₁= Cowdung, T₂= Poultry manure alone, T₃= Poultry litter+Ash (5:1), T₄= Poultry litter+Ash (4:1), T₅= Poultry litter+Ash (3:1), T₆= Poultry litter+Sawdust (5:1), T₇= Poultry litter+Sawdust (4:1), T₈= Poultry litter+Sawdust (3:1) and T₉= control (native nutrient). Prior to composting, poultry litter was mixed with bulking agents in the ratio of 5:1, 4:1 and 3:1 by volume basis. The entire quantity of well-decomposed manure (5 t ha^-1) was applied in respective plots during final land preparation and mixed into the soil. The crop was fertilized with a blanket dose of 120, 40, 75, 3 and 1.5 kg ha^-1 N, P, K, Zn and B in the form of urea, TSP, MP, zinc sulphate and boric acid, respectively. Half of urea and MP and full amount of TSP, zinc sulphate and boric acid were applied and thoroughly mixed with soil three days prior to planting. The remaining half of urea and MP were applied in two equal splits at 21 and 45 DAP as top dressing. The unit plot size was 2.4m x 3m having plant spacing was 20 cmx15cm. Fifty day old healthy seedlings were transplanted. The crop was finally harvested when the plants showed the sign of maturity by yellowing of leaves, development of red pigmentation and true shape of bulbs (Bhonde et al., 1983). The collected data were statistically analyzed using MSTAT-C package program developed by Russel (1986). The significance of the differences among the pairs of treatment means was evaluated by Duncan Multiple Range Test (DMRT) at 5% level of probability (Gomez and Gomez, 1984).

Source of Information: Annual Research Report, Agronomy Division 2008-2009, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 15,000/-

Total Budget (Tk.) : 15,000/-

Achievement/Findings:

The application of PL and ash mixture as a 3:1 ratio (T₅) produced 16.5 and 15% more bulb yield over T₁ and T₂, respectively. Likewise, application of PL and sawdust mixture as a 3:1 ratio (T₈) produced 14 and 12.6% more bulb yield over T₁ and T₂, respectively. The result also reveled that yield and yield contributing characteristics of onion was maximum when the application of PL and bulking agent's mixture as a ratio of 3:1 (T₅ and T₈) than the other treatments.

Knowledge Management: Report/Proceedings