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Effect of Irrigation and Mulching on the Growth and Yield of Ginger

M.A.Islam
Senior Scientific Officer
Spices Research Center, BARI, Bogura, Bangladesh

M.A.Rahim
Professor
BAU, Department of Horticulture, Mymensingh

T.M.T. Iqba
Professor
Department of Horticulture, HSTU, Dinajpur

Abstract/ Executive Summary:

A field experiment was conducted at the Spices Research Center, BARI, Bogura, Bangladesh during 2009-10 to determine the impact of irrigation and suitability of mulch materials on the growth and yield of ginger. The experiment was laid out in the randomized complete block design (RCBD) with three replications. The treatments comprising of two factors viz., two irrigation (I1: irrigation in dry period and I 2: control i.e. no irrigation and three mulching material (M0: control (no mulch) M 1: water hyacinth and M2: rice straw). Treatment revealed that I 1: (irrigation in dry period) showed that early emergence, highest plant height, number of leaves/plant, number of tillers/plant with maximum weight of primary and secondary rhizome, highest dry matter % and weight of old mother rhizome t ha^-1. The highest yield of rhizome (21.19 t ha^-1) was obtained from I 1: (irrigation in dry period). Among the mulch treatments, the highest rhizome yield (22.51 t ha^-1) was obtained from M 2 (ricer straw mulch). The combined effect of I 1 M 2 (irrigation in dry period with rice straw mulch) produced the highest rhizome yield (25.07 t ha^-1).

Keywords: Ginger, irrigation, Mulching

Location: Spices Research Center, BARI, Bogura,,Bangladesh

Start Date: 03-04-2009

End Date: 10-02-2010

Program Area: Crop-Soil-Water Management

Commodity: Ginger, Mulching, Supplemental irrigation

Objectives:

Investigate the effects of irrigation and mulching on the growth and yield of ginger.

Methodology:

The experiment was conducted at the research farm of the Spices Research Centre, BARI, Bogra, during the period from April 2009 to January 2010. It has sub-tropical climate with an average annual rainfall of 237.13 mm. The soil was Tista polal tract, having a pH value of 5.8- 6.6. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Healthy ginger rhizome Var. BARI Ada-1 was used for planting material. Two irrigation levels viz., I1 (irrigation in dry period: 7days before planting and 60 days after planting) and I2 (no irrigation) were consisted as the first factor and three mulching materials viz., M0 (control), M1 (water hyacinth) and M2 (rice straw) were considered as the second factor. Planting was done on the 1st April, 2009. The crop was fertilized with cowdung, urea, TSP, MP and gypsum at 5 ton, 304, 267, 233 and 111 kg ha^-1, respectively. Total cowdung was applied at the time of general land preparation and the entire quantity of TSP, gypsum and half of MP was applied during the final land preparation. Half of the urea was applied 50 days after planting and the remaining MP and urea were applied in two equal splits at 80 and 110 days after planting. Earthing up was done at 60, 90 and 110 days after planting. The data on different growth parameters were recorded from randomly of 10 selected plants of each plot 15 days interval at 50, 65, 80, 110, 125, 140 and 155 days after planting. Yield and yield contributing characters were collected at harvesting time. The Ist. irrigation was applied 7 days before planting and the 2nd irrigation after 60 DAP (Days after planting). Irrigation was done at the level of critical point indicated by moisture meter (delta T England). Irrigation water applied twice 80 mm each time. Irrigation water was applied twice at 7 days before planting and at 60 days after planting. The discharge of water through hose pipe (Diameter 2.5 cm) was calibrated before application. The discharge of water through this pipe was 20 mm pipe per minute. The mulch materials were covering with the 4 cm thickness. Water hyacinth and rice straw mulch were placed before the rhizomes started to emerge. A second mulch was added at 60 days after planting as the first one was washed away by rain, wind and irrigation water. Rice straw and water hyacinth were applied at 2.0 and 2.5 kg/m²; respectively. The soil samples were taken from each plot at 0-10 cm depth before each irrigation. The samples were weighed and oven dried at 1000 C for 24 hours. The collected data were analyzed statistically and adjusted with least significance (LSD) at 5% level of probability.

Source of Information: Bangladesh Agron. J. 2015, 18(1): 27-36

Article Link (Online Journal): https://pdfs.semanticscholar.org/de73/67abf11ffe0b368850cea2f31f9c9dc1a0dd.pdf

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Rhizome yield of ginger was significantly affected by the irrigation, mulching and their combined effects. The growth and yield attributes of ginger rhizome were increased when irrigation as applied irrigation in dry period (7 days before planting and 60 days after planting). Mulching also influenced the growth and yield of ginger rhizome. The rice straw mulch gave the highest yield of ginger rhizome. However, irrigation in dry period with rice straw mulch resulted in the highest rhizome yield per unit area.

Knowledge Management: Journal