A. J. Mila
Scientific Officer
IWM Division, BARI, Gazipur-1701
A. R. Akanda
Principal Scientific Officer
IWM Division, BARI, Gazipur-1701
S. Akhter
Principal Scientific Officer
TCRC, BARI, Gazipur
S. Pervin
Scientific Officer
PHT Division, BARI, Gazipur
This experiment was conducted at the research field of IWM Division, BARI, Gazipur. The objective was to determine the effect of irrigation on yield and quality of BARI Alu-25 and BARI Alu-28. There were six irrigation treatments with 3 replications in a randomized complete block design. Furrow irrigation method was used. The variety BARI Alu-25 along with four irrigations was found better to produce the highest yield than other interactions. Yield of tubers increased with increase irrigation and the percent of malformed tubers also increased. The highest amount of water use was found 177.86 mm in treatment V1T6 while the lowest 115.76 mm was used in treatment V2T1. The highest water productivity was found 20.29 kg /m3 in treatment V2T2 while the lowest 15.32 kg /m3 was found in treatment V1T3. BARI Alu-25 was more susceptible to scab disease than BARI Alu-28. The highest benefit cost ratio was found 2.45 in treatment V1T6 while the lowest (1.53) was found in treatment V2T1. The results suggest that four irrigations at the combination of vegetative, stolonization, tuberization, and bulking stage were found more economic than either irrigation at the stolonization or tuberization and bulking stage for processing potato cultivation.
Irrigation, Quality of potato, Processing of potato
Crop-Soil-Water Management
The objective was taken to evaluate the irrigation effect on yield and quality of processing potato varieties.
The experiment was conducted at the research field of Irrigation and Water Management Division, BARI, Gazipur, during the rabi season of 2012-2013 with two processing potato varieties (BARI Alu-25 and BARI Alu-28). Each treatment was replicated thrice. The experimental design was randomized complete block (RCB) with six treatments. Six irrigation treatments were T1 = stolonization stage (25-35 DAP); T2 = tuberization stage (30-45 DAP); T3 = bulking stage (45-65 DAP); T4 =combination of T1 and T3; T5 =combination of T2 and T3 ; T6 = combination of vegetative, T1, T2, and T3.
The effect of different experimental treatments on yield, and yield component as well as crop water relations and financial analysis were studied. Fertilizers were applied at the rate of N108, P27, K118, S20, Zn2, Mg6, and B2 Kg/ha and Cowdung 5.0 t/ha. Half of N and total amount of other fertilizers were applied at the time of final land preparation and remaining N was applied as top dresses at 35 DAP. Seeds were planted in line on 20 Nov, 2012 at the rate of 1.5 t/ha. The unit plot size and spacing were 4 m × 3 m and 60cm x 25cm, respectively. Intercultural operations, such as weeding, and pesticide application were done as when necessary. The soil water content was monitored in each plot by using the gravimetric method at 30 cm intervals down to 60 cm. The amount of applied water was measured by time-volume technique. Irrigation water was applied by furrow method to bring the soil moisture up to field capacity considering the effective root zone depths at 50 cm. Soil moisture at every 10 days intervals and prior to irrigation were determined by using the same method.
Annual Report, IWM Division, BARI, Gazipur
From the first year study, it reveals that the processing potato varieties of BARI Alu-25 and BARI Alu-28 had a good response to different irrigation treatments. The stolonization and tuberization stage were the critical stage to irrigation for processing potato cultivation. The variety BARI Alu-25 along with four irrigations such as, vegetative, stolonization, tuberization, and bulking stage was found more economic and produced highest yield than irrigation at either stolonization or tuberization and bulking stages for processing potato cultivation.
Report/Proceedings