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Evaluation of the Productivity of Wet Seeded and Transplant Rice in Aman 2006 and Boro 2007 Seasons, Hauli, Chuadanga.

Akhter Hossain Khan
Principal Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur

M.Islam Uddin Mollah,
Principal Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur

Abhijit Saha
Principal Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur

M.A.Quddus
Chief Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur

Abstract/ Executive Summary:

In T. Aman season, the grain yields of WSR (6.04 t/ha) and transplant rice of both days planting, TP1 (6.07 t/ha) and TP2 (6.12 t/ha) were comparable. The field duration was the highest in WSR (135 days) significantly decreased in TP1 (121 days) and TP2 (113 days). Total variable cost (TVC) was found higher in TP1 and WSR compared to TP2. The highest grain yield of Boro rice was produced by TP2 (6.54 t/ha) which was comparable to WSR (6.39 t/ha) and the lowest grain yield was come from TP1 (6.03 t/ha). The field durations for WSR (141 days) and TP1 (137 days) were comparable but significantly decreased in TP2 (117 days). The TVC was the lowest in WSR due to less labor cost in plant establishment.

Keywords: Productivity, Drum seeding, Transplanting, Herbicide, Gross return, TVC

Location: Farmers' field at Hauli, Chuadanga

Start Date: 01-07-2006

End Date: 30-06-2007

Program Area: Crop-Soil-Water Management

Non-commodity: Performance

Objectives:

To compare the productivity of wet seeding and transplanting done on the same day and transplanting done 30-35 DAS.

Methodology:

The experiment was at farmers' field at Hauli, Chuadanga during T. Aman 2006 and Boro 2006-07 seasons. The treatments were i) Wet seeding with suitable crop management options (WSR), ii) Transplanting on day of WSR (TP1), iii) Transplanting 30 days after WSR for Aman and 35 days for Boro seasons (TP2). The experiment was laid out RCBD with six replications. BR11 and BRRI dhan28 were used during Aman and Boro season, respectively. Pre-germinated seeds were sown on a well-prepared wet seedbed on 30 May and 29 June in Aman and 29 October and 02 December Boro season for TP1 and TP2, respectively. In Aman season sprouted seeds sown on 29 June, 2006 using drum seeder with single thick row (WSR). On the same day, 30-day old seedlings were uprooted from the seedbed very carefully without making any injury and transplanted (TP1). Seedlings of 30-day were transplanted 30 days after WSR (TP2). One hundred twenty five kg N ha^-1 in WSR and 100 kg N ha^-1 both in TP1 and TP2 transplant rice were applied. During Boro season sprouted seeds were sown on 02 December, 2006 using WSR. On the same day, 35-day old seedlings were uprooted and transplanted (TP1). Seedlings of 35 days were transplanted 35 days after WSR (TP2). The nitrogen applied were 150 kg ha^-1 in WSR and 120 kg ha^-1 both in TP1 and TP2 transplant rice. Urea was top dressed in four splits in WSR and three splits in transplant rice in Aman season at the rate of 50 kg/ha each time. The pre-emergence herbicide, pretilachlor was used at the rate of 375 g a.i./ha at 3 and 9 DAS in Aman and Boro season, respectively, for WSR and 500 g a.i /ha at 4 and 5 DAT in Aman and Boro season, respectively, for TPR.

Source of Information: Proceedings of the BRRI Annual Internal Review for 2006-07

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Results revealed that the grain yields of WSR (6.04 t/ha) and transplant rice of both days planting, TP1 (6.07 t/ha) and TP2 (6.12 t/ha) were comparable. The field duration was the highest in WSR (135 days) significantly decreased in TP1 (121 days) and TP2 (113 days). Total variable cost was found higher in TP1 and WSR compared to TP2. This was due to higher irrigation pump rent for irrigation starting one month earlier and more number of insecticide applications to control pests. TP2 gave the highest gross margin followed by WSR and the lowest was obtained from TP1. The highest grain yield of Boro rice was produced by TP2 (6.54 t/ha) which was comparable to WSR (6.39 t/ha) and the lowest grain yield was come from TP1 (6.03 t/ha). The field durations for WSR (141 days) and TP1 (137 days) were comparable but significantly decreased in TP2 (117 days). The prolong field duration in WSR and TP1 might be due to the effect of low temperature at vegetative growth stages. Total variable cost (TVC) was found higher in TP1 than TP2 due to higher irrigation pump rent for starting irrigation more than one month earlier and more number of insecticide applications to control pests. The TVC was the lowest in WSR due to less labor cost in plant establishment. The pest control cost was similar in WSR and TP2. The highest gross return was produced by TP2 which was followed by WSR and the lowest by TP1. Gross margin obtained by TP2 and WSR was about 17% higher than TP1.

Knowledge Management: Report/Proceedings