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Determination of Site Specific Fertilizer Requirement of Sugarcane and Intercrop (potato) Under Sugarcane-based Cropping System

G. C. Paul
Soils and Nutrition Division, Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh

S. M. Bokhtiar
Soils and Nutrition Division, Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh

A. K. Azad
Soils and Nutrition Division, Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh

M. A. Mannan
Soils and Nutrition Division, Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at Ishurdi under High Ganges River Floodplain (AEZ-11) and Jamalpur under Young Brahmaputra and Jamuna Floodplain (AEZ-9) soils with a view to determine the fertilizer requirements of cane and intercrop (potato) and their economics under sugarcane based cropping systems. Cane yield was enhanced (6-8%) when it was intercropped with potato for the residual effect of applied fertilizer to intercrop. Gross return and gross margin was higher in cane intercropped with potato over sole crop at both the locations. Intercropping potato with sugarcane using BSRI'98 rates of fertilizer for cane and potato followed by in situ dhaincha incorporation gave higher economic benefit at Ishurdi and Jamalpur.

Keywords: Sugarcane, Potato, Intercropping, Farming system.

Location: Ishurdi under High Ganges River Floodplain (AEZ-11) and Jamalpur under Young Brahmaputra and Jamuna Floodplain (AEZ-9) soils

Start Date: 00-00-2000

End Date: 00-00-2004

Program Area: Farming System

Commodity: Fertilizer, Sugarcane

Objectives:

To verify how different nutrient management options based on medium and high yield goals influence its productivity, profitability and change in soil fertility.

Methodology:

A field experiment was conducted in 2000-2001, 2001-02,2002-03 and 2003-04 cropping seasons at Ishurdi under High Ganges River Floodplain (AEZ-11) and Jamalpur under Young Brahmaputra and Jamuna Floodplain (AEZ-9) soils. Each treatment replicated three times in a randomized complete block design. Details of treatments and the amount of fertilizers used for each treatmen. A 30-day old single budded soil bed settlings with a row spacing of 1m and interplant spacing of 0.5m were transplanted at Ishurdi (var. Isd 30) and Jamalpur (var. Isd 28) in December and it was harvested after 13-months. The unit plot size was 8 m x 6m. One line of potato (var. cardinal) tuber as intercrop was planted in between cane rows and harvested after 90 days of plantation. Full dose of P, S, Zn as TSP, Gypsum and Zinc sulphate were applied in trenches and thoroughly mixed with soils by spade prior to transplanting of sugarcane settlings. One third of the quantities of N and K were top-dressed after 20-30 days of settling transplantation. The rest amount of N and K fertilizers was applied in two equal splits at tiller completion stage and grand growth stage. Half of N, K and all other fertilizers for potato were applied at the vacant space of two cane rows and mixed thoroughly with soils and remaining N and K were applied as top dressing at 45 days of planting. The recommended crop management practices were followed when required for cane and intercrop potato. MYG-Moderate yield goal; STB-Soil test basis; BSRI-Bangladesh Sugarcane Research Institute; FRG-Fertilizer Recommendation Guide.

Source of Information: Pak Sugar Journal April-June 2008

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The residual value of fertilizers applied in potato might be helped in increasing cane yield. This finding was in close conformity reported that, plots intercroppped with potato yielded more cane than plots with cane alone and net profit from this plot was significantly higher than any other intercropping combination. Highest potato yield of 8.17 ha^-1 was obtained in T₆ treatment that received fertilizer as per BSRI'98 followed by dhaincha. Cane equivalent yield was influenced by cane yield but small variation in potato yield (0.62 t ha^-1 between T₅ and T₆) largely influenced the corresponding cane equivalent yield. This result was also in good agreement with the finding of several workers. The effect of GM in increasing cane yield was evident.

Knowledge Management: Journal