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Effects of Mulching Duration on the Yield of Intercrop Potato and Intercropped Sugarcane

M. Shaheen
Sugarcane Research & Training Institute, Ishurdi, Pabna, Bangladesh.

M. Ali
Sugarcane Research & Training Institute, Ishurdi, Pabna, Bangladesh.

S. A. Imam
Sugarcane Research & Training Institute, Ishurdi, Pabna, Bangladesh.

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

Abstract/ Executive Summary:

An experiment was conducted at the Sugarcane Research and Training Institute (SRTI), Ishurdi, Pabna to investigate the effect of duration of straw mulch on potato inter crop as well as inter cropped Sugarcane. Straw mulch played a positive role to increase the yield of both potato and sugarcane. Significantly the highest potato yield (6.45 t/ha) was obtained from mulched treatment till harvest of potato as against 4.72 t/ha in non-mulching condition. Higher cane yield was also found in straw mulched treated plots. The highest adjusted yield of cane + potato (117.85 t/ha) was obtained where straw mulch were kept until harvest of potato as compared to other mulched treated plots. The lowest yield of cane was produced by pure stand sugarcane plots (82.98 tl/a). The yield of potato and cane was found to increase steadily with the increase in the duration of straw mulch. Higher gross and net margin may be gained with straw mulching till harvest of potato inter cropped with sugarcane

Keywords: Effectsof mulching,Yield,Intercrop, Potato,Sugarcane

Location: BSRI

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Sugarcane, Potato

Objectives:

To study the effect of duration of straw mulch on the yield of potato as well as sugarcane.

Methodology:

The experiment was carried out with the following treatments laid out in RCB design with four replications. Sugarcane + Potato without mulching. Sugarcane + Potato with straw mulch upto 30 days of planting. T 3 Sugarcane + Potato with straw mulch upto 45 days of planting. T 4 Sugarcane + Potato with straw mulch without removal of mulch. T 5 Sugarcane as pure stand crop without mulching. The land preparation and trenching for sugarcane planting was done mechanically by tractor. Soils of the ridges in between two trenches were spread with the spade for potato plantation. The individual plot size was 6m x 6m (36 sqm.). Three budded setts of Isd 16 were planted in trenches in end of end method with the row spacing of 1 m. A single row of cardinal variety of potato was as inter crop and was planted on the ridges between two rows of sugarcane with the planted at a plant spacing of 22.5 cm. Urea, Triple sugar phosphate (TSP) and Muriate of Potash (MP) were applied @ 125, 125, 110 kg of N, P₂0₅, and K₂0/ha respectively in cane. The entire quantity of TSP, one third of urea and half of MP were applied to sugarcane as basal, one third of Urea was applied as 1 st top dress in February after harvesting of potato. The remaining quantity of MP and one third of Urea were top dressed at the time of earthling up of cane. The inter crop potato was fertilized @ 120, 150, 120 kg of N, P₂0₅ and K₂0/ha as Urea, Triple Super Phosphate (TSP), Muriate of Potash (MP) respectively. In inter crop half of Urea, full TSP and MP were applied as basal dose. The rest half of Urea was applied as first top dress after forty days of potato planting. About 5 cm thick straw mulch were spread on potato lines immediately after planting. Mulched straw were removed as per treatment. All the cultural practices applicable for sugarcane as well as inter cropped potato were done as per normal practice. Relevant data were collected, tabulated and analyzed following appropriate procedures.

Source of Information: Bangladesh J. Sugarcane, 12-15: 74-78 July, 1993

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Straw mulch played a positive role to increase the yield of both potato and sugarcane. Significantly the highest potato yield (6.45 t/ha) was obtained from mulched treatment till harvest of potato as against 4.72 t/ha in non-mulching condition. Higher cane yield was also found in straw mulched treated plots. The highest adjusted yield of cane + potato (117.85 t/ha) was obtained where straw mulch were kept until harvest of potato as compared to other mulched treated plots. The lowest yield of cane was produced by pure stand sugarcane plots (82.98 tl/a). The yield of potato and cane was found to increase steadily with the increase in the duration of straw mulch. Higher gross and net margin may be gained with straw mulching till harvest of potato inter cropped with sugarcane.

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