A. Azam
Student,
SAU, Dhaka
M. M. Rahman
Scientific Officer
PRSS, Bangladesh Agricultural Research Institute (BARI), Gazipur
M. Samsuzzaman
Senior Officer
ABFL, Mymensingh
M. A. Main
Scientific Officer
DATCL, Jessore
M. A. Quddus
Senior Scientific Officer
HRC, BARI, Gazipur, Bangladesh
Mustard, Sulfur, Boron, Oil, Nutrient content, Yield.
Central Farm of the Sher-e-Bangla Agricultural University, Dhaka
Variety and Species
Mustard, Fertilizer
The experiment was conducted at the Central Farm of the Sher-e-Bangla Agricultural University, Dhaka during November 2014 to February 2015. Experimental site- Sher-e-Bangla Agricultural University, Dhaka (90.2O N latitude and 23.50E altitude) lies at an elevation of 8.2 m above the sea level. The terrace soils of Dhaka belongs to Tejgaon series under the agro ecological zone Madhupur Tract and texture is silty loam. There were 16 treatment combinations comprising four levels each of S (S0= 0, S1=10, S2= 20 and S3= 30 kg S ha-1) and B (B0= 0, B1= 1, B2= 2 and B3= 3 kg B ha-1). The treatments were S0B0, S0B1, S0B2, S0B3, S1B0, S1B1, S1B2, S1B3, S2B0, S2B1, S2B2, S2B3, S3B0, S3B1, S3B2 and S3B3. The blanket doses of 120 kg urea ha-1, 145 kg TSP ha-1, 45 kg MoP ha-1and 5 kg ZnSO4 ha-1 were used. Soil samples (0-20 cm) before initiation of the experiment was analyzed for soil pH (Jackson, 1973), organic matter (Nelson and Sommers,1982), total N (Bremner and Mulvaney, 1982), exchangeable K (Pratt, 1965), available P (Olsen & Sommers, 1982), available S (Fox et al., 1964) and available B (Page et al., 1982). The land was prepared thoroughly by country plough followed by laddering. The treatments were laid out in Randomized Complete Block Design (RCBD) with three replications. The unit plots size was 2 m x 2.5 m. Gypsum and boric acid were used as the sources of S and B, respectively. The whole amount of triple super phosphate (TSP), muriate of potash (MoP), zinc sulphate and 50% of urea were incorporated into soil at the time of final land preparation. Gypsum and boric acid were applied as per treatment. The remaining urea was applied at 25 days after seed germination. Seeds of mustard (BARI Sharisha-9) were sown on the 7 November, 2014. The seed rate was 6 kg ha-1. Weeding was done at 20 and 35 days after sowing. Insecticide Sumithion 50EC at the rate of 2 ml L-1 water was sprayed for controlling pod borer. Crop was harvested after maturity. Data on yield contributing characters were collected from randomly selected five plants in each plot excluding border plants. Data on yields (kg ha-1) were recorded from the whole plot technique. Harvest index (%) was calculated. Ground stover and seed samples were digested with di-acid mixture (HNO3- HClO4) (5: 1) as described by Piper (1966) for the determination- concentration of N (Micro-Kjeldahl method), P (spectrophotometer method), K (atomic absorption spectrophotometer method), S (turbidity method using BaCl2 by spectrophotometer) and B (spectrophotometer following azomethine-H method). Oil content of seed was determined by Soxhlet method and expressed in percentage (%). Nitrogen content was determined by Kjeldahl method. Protein content was measured by estimating the N content and then multiplying the N value by 6.25. Collected data were analyzed statistically with MSTATC programme and the mean difference was adjusted by Duncan's Multiple Range Test (Gomez and Gomez, 1984) at 5% level of probability.
Bangladesh J. Agril. Res. 42(2): 249-258, June 2017 ISSN 0258-7122 (Print), 2408-8293 (Online)
Journal