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Response of Mustard as Influenced by Boron Fertilization in Non-calcareous Dark Grey Floodplain Soil in the Northern Region of Bangladesh

N. K. Halder
Soil and Water Management Section, Horticulture Research Centre and Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh.

M. A. Siddiky
Soil and Water Management Section, Horticulture Research Centre and Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh.

S. Nasreen
Soil and Water Management Section, Horticulture Research Centre and Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh.

J. Sarkar
Soil and Water Management Section, Horticulture Research Centre and Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh.

M. H. Ullah
Soil and Water Management Section, Horticulture Research Centre and Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

A field study on mustard was conducted in the Non-Calcareous Dark Grey Floodplain Soil (AEZ-1) at Rajbari, Dinajpur during the rabi seasons of 2000-2001 and 2001-2002. The objectives were to find out the optimum dose of boron and to evaluate a suitable variety for maximizing the yield of mustard. Four varieties viz., BARI Sarisha-6, BARI Sarisha-7, BARI Sarisha-8 and BARI Sarisha 9 integrated with four levels each of boron (0, 1.0, 1.5 and 2.0 kg ha^-1) along with a blanket dose of N₁₂₀ P₃₅ K₆₅ S₂₀ Zn₅ kg ha^-1 and cowdung at the rate of 5 t ha^-1 were tested in the study. The interaction effect of variety and boron had a significant response on the yield components of mustard. The highest seed yield (2.23 t ha^-1) was recorded in BARI Sarisha-6 with 2 kg B ha^-1 in the second year (2001-2002), while in the first year (2000-2001), the recorded yield was 1.51 t ha^-1 which was statistically significant over the boron control (B₀). However, the highest mean seed yield (1.87 t ha^-1) was obtained from the same treatment combination by 35.5% yield increase in both the years of study. Though the individual effect of boron and variety were found to be more pronounced than interaction. Here, BARI Sharisha-6 and 2 kg B ha^-1 separately augmented highest seed yields of mustard (1.91 and 1.98 t ha^-1) for both the years of study when a blanket dose of other fertilizers were ensured. In regression analysis, the linear relationship between seed yield and the levels of boron was observed in the mean seed yield of two consecutive years of study. It might be inferred thus that, beyond the level, the seed yield might be declined due to the toxic effect of excess dosage of boron.

Keywords: Mustard, Boron, Non-calcareous, Dark grey floodplain soil

Location: Agricultural Research Station, Rajbari, Dinajpur

Start Date: 00-00-2000

End Date: 00-00-2002

Program Area: Crop-Soil-Water Management

Commodity: Mustard

Objectives:

To find out the optimum dose of boron and to evaluate a suitable variety for maximizing the yield of mustard.

Methodology:

Field studies were carried out in the Non-Calcareous Dark Grey Floodplain soils of the Agricultural Research Station, Rajbari, Dinajpur during two consecutive years of 2000-2001 and 2001-2002, respectively. The initial soil samples were analyzed.The experiment was laid out in RCBD with 3 replications. It was a factorial experiment taking 4 different levels of boron (0,1, 1.5 and 2.0 kg ha^-1) and 4 varieties of BARI Sarisha-6, BARI Sarisha-7, BARI Sarisha-8 and BARI Sarisha-9) of mustard. There were sixteen different treatment combinations. The unit plot size was 4x5 m. Boric acid was used as a source of boron. Four levels of boron (0,1.0, 1.5 and 2.0 kg ha^-1) with a blanket dose of NPKSZn and CD at the rate of 120:35:65:40:5 kg ha^-1 and 5 t ha^-1 were used in the study. All P, K, S, Zn B and CD and _½ of N were applied at the final and preparation and remaining ½ N was top-dressed prior to flowering. The seeds were sown continually in line 30 cm apart from row to row in the month of November in both the years. The intercultural operations and other management practices were done in time. The crop was harvested on first week of March for both the years of 2000-2002. Data on the yield and yield contributing characters were recorded from ten randomly selected plants of each treatment. The analyzed data was adjusted with Least Significant Difference (LSD) at 5% level of significance.

Source of Information: Asian Journal of Plant Sciences, 6(2): 411-414, 2007, ISSN 1682-3974.

Article Link (Online Journal): DOI: 10.3923/ajps.2007.411.414; URL: http://scialert.net/abstract/?doi=ajps.2007.411.414

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The two years study demonstrated that, BARI Sarisha-6 in combination with 2.0 kg B ha^-1 along with a blanket dose of N₁₂₀P₃₅K₆₅S₂₀Zn₅ and cowdung 5 t ha^-1 suitable for maximizing yield of mustard in the Non-Calcareous Dark Grey Floodplain Soil of Rajbari, Dinajpur. and might be recommended for sustainable yield and to nourish the soil fertility in the northern region of Bangladesh.

Knowledge Management: Journal