M.S.Islam
Chief Scientific Officer
FMPE Division, BARI, Gazipur
S.K.Biswas
Scientific Officer
IWM Division, BARI, Gazipur
A. R. Akanda
Senior Scientific Officer
IWM Division, BARI, Gazipur
A.T.M Anowarul Islam Mondal
SO
SSD, BARI, Gazipur
S.Hassan
Principal Scientific Officer
IWM Division, BARI, Gazipur
In a study at the farms of Joydebpur (2006-2007 and 2007-2008) and Ishurdi (2006-2007) of BARI, the interactive effects of irrigation and fertilizer on the yield of BARI Hybrid Maize 3 were assessed. Four irrigation levels i.e., water application up to 50, 75, 100 and 125% of depleted soil moisture from field capacity and three fertilizer doses, N250 P60 K120 Mg10 Zn5 B2 kg/ha, N125 P60 K60 S30 Mg10 Zn5 B2 kg/ha and N375 P60 K180 S30 Mg10 Zn5 B2 kg/ha were tested. The interaction between irrigation level and fertilizer doses show that irrigation up to 100% of depleted soil moisture and N250 P60 K120 M10 Zn5 B2 kg/ha of fertilizer doses was found the best combination producing 7.59 t/ha and 9.77 t/ha of grain yields in silty clay loam soil of Joydbepur and clay loam soils at Ishurdi, respectively. However, no significant difference was observed among the levels of irrigation and doses of fertilizers in Joydebpur but significant difference was found in yields at Ishurdi. Due to adequate rainfall in Joydebpur, no irrigation effect on yield was obtained among the irrigation levels.
Irrigation, Fertilizer levels, Maize yield
Joydebpur, Ishurdi
Crop-Soil-Water Management
To see the interactive effect of irrigation quantity and fertilizer doses on the yield of BARI hybrid maize-3.
The experiments were conducted at the farms of Bangladesh Agricultural Research Institute at Joydebpur during 2006-2007 and 2007-2008 and Ishurdi during 2006-2007. BARI Hybrid Maize 3 was tested to find its response to irrigation and fertilizer interactions. In Joydebpur, the crop was planted on 26 November 2006 and 03 December 2007. The crop was harvested on 22 April 2007 and 24 April 2008 in the same location. In Ishurdi, the plantation was done on 27 November, 2006 and harvested on 26 April, 2007. The field capacities were 28% at Joydebpur and 26% at Ishurdi. The bulk densities were 1.5 and 1.45 gm/cc at Joydebpur and Ishurdi, respectively. The experimental plots were set in split-plot design. There were 4 irrigation levels and 3 fertilizer doses in the experiment. Each combination was replicated thrice. Irrigation levels were put in the main plots and the fertilizer doses in the sub plots. Irrigations were applied 4 times to each of the irrigation treatments. These were: irrigation at 15-20 days after sowing (DAS), 30-35 DAS, 60-70 DAS and 85-95 DAS. Fertilizer levels were F1 = Recommended doses, N250 P60 K120 Mg10 Zn5 B2 kg/ha; F2 = N125 P60 K60 S30 Mg10 Zn5 B2 kg/ha; F3 = N375 P60 K180 S30 Mg10 Zn5 B2 kg/ha. A basal dose of MP and TSP was applied at the time of land preparation. After that the fertilizers were applied following by irrigation. Fertilizers were applied 3 times during the entire growing season. Effective rainfall was estimated by using the USDA soil conservation method (Smith, 1992).
Ptotal = Ptotal (125-0.2 Ptotal)/125 for Ptotal <250 mm
Ptotal = 125 + 0.1 Ptotalfor Ptotal >250 mm
Seasonal water requirement = Applied water + effective rainfall ± soil water contribution. All the collected data were analyzed statistically using the MSTAT software program.
Annual Report, IWM Division
In Joydebpur, the crop performance in respect of grain yield differed among the irrigation sequences in two years. Moreover rainfall affected the treatments to a large extent. So, the study need to continue for at least another year to reach a definite conclusion.
Report/Proceedings