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Effects of Sulpher and Zinc on the Yield and Yield Components of Two Mustard Cultivars

Jayanta M Sarker
Laksam ADP World Vision Bangladesh Laksam, Comilla

Dwipendra C Sarker
Disaster and Climate Risk Management in Agriculture Project, DAE Rajshahi

M K Quais
RFS Division, BRRI Gazipur-1701

Abstract/ Executive Summary:

A field experiment was conducted at the Agronomy field Laboratory of Bangladesh Agricultural University, Mymensingh, during the Rabi season, November to March to study the effect of sulphur and zinc on the yield and yield contributing characters of two varieties of mustard, namely, Sonali Sarisha and Sampad. Four levels of zinc (0, 2.5, 5 and 7.5 kg ha^-1) and sulphur (0, 20, 40 and 60 kg ha^-1) were tested. Sulphur had significant effect on yield and all the yield components of mustard. Application of 60 kg S ha^-1produced the highest seed yield (0.98 t ha^-1) and the lowest one (0.70 t ha^-1) was received from the control. Sulphur at the rate of 60 kg ha^-1 produced highest number of pods per plant, seeds per pod, 1000-seed weight, branches per plant and harvest index. Zinc had significant effect only on plant height and seed yield. The highest seed yield (0.90 t ha^-1) was produced by applying 7.5 kg Zn ha^-1 and the lowest by the control treatment. Sonali Sarisha (SS–75) produced higher 1000-seed weight and higher plant height than Sampad but similar seed yield.

Keywords: Mustard, Yield and yield contributing characters, Zinc and sulphur

Location: Agronomy field Laboratory of Bangladesh Agricultural University, Mymensingh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Mustard

Objectives:

The present study was undertaken to evaluate the effect of sulphur and zinc on the seed yield, yield contributing characters of mustard.

Methodology:

The experiment was conducted at the Field Laboratory of the Bangladesh Agricultural University, Mymensingh, during November to March. SS-75 (Sonali Sarisha) and Sampad were used in the experiment. Before sowing seeds, germination test was carried out in the laboratory and percentage of germination was found to be over 90% for both the varieties. The experiment was laid out in a Randomized Complete Block Design with three replications. The size of unit plot was 7.2m x 1.4m. The replications were separated from one another by one meter wide levee. Allocation of all treatments for two varieties was made at random in each block. There were 16 fertilizer treatments in the experiment for each variety. The rate of N, P and K were 120, 60 and 40 kg ha^-1, respectively. There were four rates of S (0, 20, 40 and 60 kg S ha^-1) and Zn (0, 2.5, 5.0 and 7.5kg Zn ha^-1). The land was first ploughed with a tractor drawn disc plough and then land was prepared with a 2 wheel tractor plough. Three composite soil samples were collected from plough depth of 0-15cm and laboratory analysis was done. Half of the total dose of urea, full dose of potassium, phophorus, gypsum and zinc oxide were applied during the final land preparation. The rest half of urea was top dressed after 35days of sowing. The N, P, K, S and Zn were supplied from urea, triple super phophate (TSP), muriate of potash (MP), gypsum and zinc oxide containing 46, 48, 60, 18 and 80.2% N, %P₂O₅, %K₂O₂, %S and %Zn, respectively. The seeds at the rate of 10 kg ha^-1 were sown. The seeds were sown on 26th November and intercultural operations like weeding, thinning, irrigation and insecticide application were done as and when necessary. The seeds were weighed and moisture in the seeds was adjusted at 10%. The dried seeds and straw were weighed as per plot which was subsequently converted to yield t ha^-1. Ten sample plants per plot were selected at random for measuring yield components.

Source of Information: Eco-friendly Agril. J. 8(02): 04-07, 2015 (February); ISSN 1999-7957

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Sulphur fertilizer had significant effect on yield and all the yield components of mustard. Sulphur at the rate of 60kg S ha^-1 produced the highest seed 0.98 t ha^-1. Zinc at the rate of 7.5 kg ha^-1 produced the highest seed yield and seed yield decreased with the decreasing rates of zinc fertilizer.

Knowledge Management: Journal