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Effect of Sulphur and Zinc on Growth, Yield and Nutrient Uptake of Boro Rice (cv. BRRI Dhan29)

M. T. Rahman
Scientific Officer
Soil Science Division, Regional Agricultural Research Station, Ishurdi, Pabna

M. Jahiruddin
Professor
Soil Science Division, Bangladesh Agricultural University, Mymensingh

M. R. Humauan
Scientific Officer
Plant Pathology Division, Regional Agricultural Research Station, Ishurdi, Pabna

M. J. Alam
Scientific Officer
Breeding Division, Pulses Research Centre, Ishurdi, Pabna

A. A.Khan
Scientific Officer
Agronomy Division, Regional Agricultural Research Station, Ishurdi , Pabna, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at Bangladesh Agricultural University, Mymensingh farm during 2004 Boro season to evaluate the effect of S and Zn on rice (cv. BRRI dhan29). There were seven treatments viz. S₀Zn₀, S₁₀Zn₀, S₂₀Zn₀, S₀Zn_1.5, S₀Zn₃, S₁₀Zn_1.5 and S₂₀Zn₃. The subscripts of S and Zn represent the dose in kg ha-1. The highest grain (5.76 t ha^-1) and straw (7.32 t ha^-1) yields were recorded in the S₂₀Zn₃treatment (100% recommended dose). The S0Zn0 (control) had the lowest grain yield with 4.35 t ha^-1 as well as the lowest straw yield with 5.47 t ha^-1. The application of both S and Zn fertilizers significantly increased S and Zn contents as well as their uptake over control.

Keywords: Sulphur, Zinc, Growth, BRRI dhan29

Location: Farm of Bangladesh Agricultural University, Mymensingh

Start Date: 00-01-2004

End Date: 00-06-2004

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To evaluate the single and combined effects of S and Zn on boro rice (cv. BRRI dhan29)

Methodology:

The experiment was conducted at the farm of Bangladesh Agricultural University, Mymensingh, (Old Brahmaputra Floodplain, and AEZ 9) during 2004. The crop under study was Boro rice. The experiment was laid out in a randomized complete block design (RCBD) with four replications. The unit plot size was 5 m × 3 m. There were seven treatments with various combinations of S and Zn doses with an equal rate for N, P and K. The treatments combination were T₁: S₀Zn₀ (control), T₂: S₁₀Zn₀, T₃: S₂₀Zn₀, T₄: S₀Zn_1.5, T₅: S₀Zn₃, T₆: S₁₀Zn_1.5, T₇: S₂₀Zn₃. Fertilizers such as urea, TSP, MP, gypsum and ZnO were used as sources for N, P, K, S and Zn, respectively. One-third dose of urea and the full dose of all other fertilizers were applied as basal to the individual plots during final land preparation. The second split of urea was applied 35 days after transplanting i.e. at maximum tillering stage and the third split 60 days after transplanting i.e. at panicle initiation stage. The sprouted seeds of Boro rice were sown in the seedbed on 7 December 2003 Seedlings were transplanted in the experimental plots on 25 January 2003. The spacing of transplanting was 20 cm × 20 cm, and three seedlings were transplanted in each hill. The normal cultural practices including weeding and insecticide spray were done as and when required. After transplanting, 5-6 cm water was maintained in each plot throughout the growth period. Data were recorded on plant height (cm),no. of effective tillers/hill, panicle length(cm), grains/panicle ,1000 grain wt.(g), grain yield (t/ha), straw yield(t/ha) and biological yield(t/ha). Soil samples from the experimental field before the start of the experiment were collected from ten different random spots from a depth of 0-15 cm. The soil samples were mixed thoroughly to make a composite sample and the unwanted materials such as stubbles, stones, weeds, etc. were removed from soil. The soil samples were air-dried, ground, and sieved through a 2 mm (10 meshes) sieve. The composite sample was stored in a clean container for physical and chemical analysis. The initial soil sample was analyzed for soil texture, pH, organic matter, total N, available S and Zn contents. The textural class was determined following Marshall’s triangular coordinate using USDA system. Soil pH was measured with the help of a glass electrode pH meter, the soil-water ratio being 1: 2.5. Organic carbon content of soil was determined following wet oxidation method. Total N content in soil was determined by Kjeldahl method. Available S content was determined by extracting soil sample with CaCl2 (0.15%) solution. Plant analysis was conducted. Nitrogen, sulphur and zinc elements were determined. The analysis of variance for various crop characters and also for nutrient concentration and uptake were done following the principle of F statistics. Mean comparisons of the treatments were adjudged by the Duncan’s Multiple Range Test.

Source of Information: J.Soil.Nature. 2 (3):10-15, (2008)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Application of 20 kg S ha^-1 might be necessary for obtaining satisfactory yield of rice in Old Brahamputra Floodplain soil and application of 3 kg Zn ha^-1 might give an added benefit.

Knowledge Management: Journal