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Response of Plant Nutrients on Noncalcareous Soils of Setabganj

M.K.A. Chowdhury
Sugarcane Research & Training Institute, Ishurdi, Pabna, Bangladesh.

M.H. Rahman
Sugarcane Research & Training Institute, Ishurdi, Pabna, Bangladesh.

Abstract/ Executive Summary:

Nutrient requirement of sugarcane have been determined through field experiments. in noncalcareous soils of Setabganj Sugar Mills (STSM) farm. Differential response of applied plant nutrients was observed on sugarcane yield. sucrose content and sugar yield. The effects of nitrogen were most marked on cane and sugar yield. Phosphorus application had no effect on cane and sugar yield. But potash application showed positive response on yields. Sulphur increased yield of cane and sugar over control and the difference was found statistically significant. Leaf nutrient concentration was found higher at tillering stage than at harvesting. The different fertilizer showed no effect on sucrose content of cane. The treatment N₂PKS (120 kg N, 130 kg P₂0₅,110 kg Kg and 30 kg S/ha) was found to be most economic fertilizer dose in this study.

Keywords: Essential elements, Yield, Cane and sugar

Location: Setabganj Sugar Mills (STSM) farm of Dinajpur district

Start Date: 00-00-1981

End Date: 00-00-1982

Program Area: Crop-Soil-Water Management

Commodity: Soil fertility

Objectives:

An investigation was undertaken to study the response of essential elements on the yield of cane and sugar.

Methodology:

The experiment was conducted at Setabganj Sugar Mills (STSM) farm of Dinajpur district during 1981-82 cropping season. Physical and chemical properties of soils of this location from a depth of 20 cm were sandy loam, pH 6.0, organic carbon 0.74%, total N 0.042%, available P 35 ppm, exch. K 0.12 (m.e.%) and available S 8 ppm. The experiment was laid out following RCB design with nine treatments, replicated 4 times. the variety Isd-2/54 was used as test crop. After proper preparation of land whole quantity of P,S, Zn and 50% of N & K were applied in the trenches. the remaining 50% of N & K were top-dressed at boom growth stage. Plot size was 8m x 7m. The cane was planted in November, 1981 and harvested in December, 1982. All agronomical practices were done as and when required. Yield per plot was recorded, sucrose content of cane was determined at harvest and sugar yield was calculated on the basis of sucrose content and cane yield. For each sample, 3-6 leaf blades counting from the top to downwards for N,P,K & S determination. The sampling was done at tillering stage (5 months old) and at harvest stage (14 months old). Particle size distribution was determined by hydrometer method; soil pH was measured in soil: water suspension at 1 :2.5 by glass electrode; total-N was determined by Kjeldhal method (Jackson, 1973), organic carbon by Walkley and Black (1947) wet oxidation method; available - P (NaHC0₃ extractable) and total-P (ternary acid digest) by standard ammonium molybdate of Olsen's (Black, 1965); exchangeable-K (NH0₄00AC extractable)and total-K (ternary acid digest) by flame photometer (Black, 1965) and available-S (NH₄0AC extractable) and total-S (di-acid digest) by turbidimetric method of Bardsley (Black, 1965).

Source of Information: Bangladesh J. Sugarcane, 10: 41-46. July, 1988

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Nitrogen, potash and sulphur application gave higher net benefit over other elements. The N1 and N₂PKS treatments showed higher marginal rate of return to added fertilizer cost and' highest net profit was obtained with N₂PKS treatment. Application of P in the Setabganj area found to be uneconomic and Zn application would be losing. For balance fertilization and to obtain economic benefit we do recommend for application of 120 kg N, 130 kg P₂0₅, 110 kg K₂O and 30 kg S/ha for sugarcane production in the STSM area.

Knowledge Management: Journal