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Effects of Boron and Molybdenum on the Yield of Chickpea

N.C. SHIL
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

S. NOOR
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M.A. HOSSAIN
Regional Agricultural Research Station, Bangladesh Agricultural Research Institute, Jessore, Bangladesh

Abstract/ Executive Summary:

Field experiments on chickpea (cv. BARI Chola-5) were carried out in Calcareous Dark Grey Floodplain Soil under AEZ 11 at Jessore and Non Calcareous Grey Floodplain Soil under AEZ 13 at Rahmatpur during the rabi season of 2001-2002 and 2002-2003. The objective was to find out the optimum dose of boron and molybdenum for yield maximization. Four levels each of boron (0, 1, 2 and 2.5 kg/ha) and molybdenum (0, 1, 1.5 and 2 kg/ha) along with a blanket dose of N20 P25 K35 S20 Zn2 kg/ha & cowdung 5 t/ha were applied in this study. The combination of B2.5 Mo1.5 kg/ha and B2.5 Mo1 kg/ha produced significantly higher yield in both the years of study at Jessore and Rahmatpur, respectively. The said treatments produced the highest mean yields of 2.10 and 1.49 t/ha for Jessore and Rahmatpur, respectively, which was around 53% higher over control (B0 M0). The combined application of both boron and molybdenum were found superior to their single application even though boron played major role in augmenting the yield. However, from the regression analysis, the optimum treatment combination was calculated as B2.34 Mo1.44 kg/ha for Jessore and B2.20 Mo1.29 kg/ha for Rahmatpur.

Keywords: Boron, Molybdenum, Chickpea, Yield, Flood plain soil

Location: RARS, Jessore and RARS, Rahmatpur

Start Date: 00-00-2001

End Date: 00-00-2003

Program Area: Crop-Soil-Water Management

Commodity: Chickpea

Objectives:

(i) To evaluate the response of boron and molybdenum on the yield of chickpea

(ii) To find out a suitable dose of boron and molybdenum for the maximization of yield.

Methodology:

The experiment was conducted simultaneously in Calcareous Brown Floodplain Soil at RARS, Jessore and in Non Calcareous Grey Floodplain Soil at RARS, Rahmatpur during the rabi season of 2001-2002 and 2002-2003. There were 16 treatment combinations comprising 4 levels each of molybdenum (0, 1, 1.5, 2 kg/ha) and boron (0, 1, 2, 2.5 kg/ha). A blanket dose of N20 P25 K35 S20 Zn2 kg/ha & cowdung 5t/ha also incorporated with the treatments. The treatments were arranged in a randomized block design with 3 replications. The unit plot size was 3m x 5m. The tested variety was BARI Chola-5. All fertilizers and cowdung were applied at the time of final land preparation. Boron and molybdenum were applied as boric acid and sodium molybdate, respectively. Seeds were sown in lines maintaining a spacing of 30 cm x 10 cm and using a seed rate of 35 kg/ha at the 1st week of December 2001 and last week of November for 2002 respectively. Intercultural operations and plant protection measures were done to keep the plant healthy. Crop was harvested at its maturity. Data was recorded for plant height, plant population, number of pots/plant, 100-seed weight and seed yield and was statically analyzed using IRRISTAT Package

Source of Information: J Agric Rural Dev 5(1&2), 17-24, June 2007 ISSN 1810-1860

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded from the above findings that the treatment combinations of (2.5 kg B/ha & 1.5 kg Mo/ha) and (2.5 kg B/ha & 1 kg Mo/ha) along with a blanket dose of N20 P25 K35 S20 Zn2 kg/ha & cowdung 5 t/ha were found suitable for maximizing yield of chickpea in Calcareous Dark Grey Floodplain Soil under AEZ 11 at Jessore and Non Calcareous Grey Floodplain Soil under AEZ 13 at Rahmatpur, respectively. However, from the regression analysis the optimum treatment combinations appeared to be (B2.58 Mo1.44 kg/ha) for Jessore and (B2.39 Mo1.29 kg/ha) for Rahmatpur. The optimum economic dose of boron was found to be 2.34 and 2.20 kg /ha for Jessore and Rahmatpur, respectively. Therefore, the above-mentioned package (B2.34 Mo1.44 kg/ha for Jessore and B2.20 Mo1.29 kg/ha for Rahmatpur) along with the said blanket dose of other fertilizer and manure may be recommended for yield sustainability and to maintain soil fertility.

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