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Direct and Residual Effect of Sulphur and Zinc on Potato-boro-t. Aman Rice Cropping Pattern

M. A. Tarafder
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2201, Bangladesh

M. Q. Haque
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2201, Bangladesh

M. M. Rahman
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2201, Bangladesh

M. R. Khan
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2201, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the Bangladesh Institute of Nuclear Agriculture (BINA) sub-staion, Tajhat, Ranpure, using potato-Boro-T. aman rice cropping pattern with an objective to evaluate the direct and residual effects of sulphur and zinc on the growth, yield and nutrient uptake by the crops. The surface soil was sandy loam texture, pH 6.3, organic matter 1.24%, available sulphur 6.62 ppm and available zinc 0.45 ppm. The experiment comprised of eight treatments for potato S₁₅Zn₂ (T₂, T₄ and T₈), S₈Zn₁ (T₅ and T₆) and S₀Zn₀ (T₁, T₃ and T₇), for boro rice S₂₀Zn₄ (T₃, T₅, T₆ and T₇) and S₀Zn₀ (T₁, T₃, T₄ and T₆). The experiment was laid out in a randomized complete block design with three replications. Average tuber yield of potato (var. cardinal) varied from 28.29 to 32.86 t ha-1 with the highest yield in S₁₅Zn₂ treatment (100% recommended dose) and the lowest was in the S₀Zn₀ treatment (control). In the second crop (Boro rice), growth and yield attributes, grain and straw yields responded significantly to S and Zn applied either in the first crop or in both crops. The average grain yield varied from 3.51 to 5.27 t ha^-1 over the treatments. In the third crop (T.aman rice), the grain and straw yields responded significantly to S and Zn applied either in the first and second crop or in the third crops. The grain yield of T.aman rice varied from 2.96 to 4.46 t ha^-1 over the treatments. The growth and yield contributing characters were also significantly influenced by the treatment. There was a significant direct and residual effect of the treatments on S and Zn uptake by the crops.

Keywords: Residual effect, Sulphur, Zinc

Location: BINA sub-station, Rangpur, Bangladesh

Start Date: 00-00-2000

End Date: 00-00-2003

Program Area: Farming System

Commodity: Fertilizer, Potato, Rice

Objectives:

To study the direct and residual effects of Sulphur and zink on the performance of crops grown in Potato-Boro-T.aman rice cropping pattern.

Methodology:

The experiment was conducted at BINA sub-station, Rangpur under Tista Meander Floodplain (AEA 3) during 2000-2001 to 2002-2003 with Potato-Boro-T. aman rice cropping pattern. The cultivars used in this experiment were Cardinal for Potato, Iratiom- 24 for Boro rice and BINA dhan-4 for T.aman rice. There were eight treatments in different combinations with S and Zn replicated thrice in randomized complete block design. A blanked dose of N₁₂₀P₂₅K₇₀ for potato, N₁₂₀P₂₅K₆₀ for Boro rice N₈₀P₁₅K₄₀ kg ha^-1 for T. aman rice was applied as basal. Nitrogen was applied in three equal splits. The source of N, P, K, S and Zn was urea, TSP, MP, gypsum and zinc sulphate respectively. One-third of urea was applied as basal to the individual plots during final land preparation. The second split of urea was applied at maximum tillering stage and the remaining split at panicle initiation stage. Intercultural operation was done as and when required. Supplementary irrigation was done as per requirement. Initial soil samples were collected and analyzed at Soil Science laboratory BINA, following standard procedure.

Source of Information: Progress. Agric. 19(1) : 33-38, 2008 ISSN 1017-8139

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Direct application of 100% S (15 kg/ha) and Zn (2 kg/ha) in all component crops significantly increased the yields of the crops. But considering the cost and return, application of 50% of S (8 kg/ha) and Zn (1 kg/ha) in potato and T. aman rice and 100% in boro rice found most profitable.

Knowledge Management: Journal