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Effect of Fertilizer and Water Management Practices on Rice Production in the Ganges-kobadck (g.k.) Project Area

A. A. HASSAN
Bangladesh Institute of Nuclear Agriculture P. O. Box 4, Mymensingh

A. A. SARKAR
Bangladesh Institute of Nuclear Agriculture P. O. Box 4, Mymensingh

M.I. Ali
Bangladesh Institute of Nuclear Agriculture P. O. Box 4, Mymensingh

GIASUDDIN AHMED
G.K. Project, BWDB, Kuslitia, Bangladesh

Abstract/ Executive Summary:

Three field experiments with rice as fest crop were conducted at Amla Experimental Farm of the G. K. project (Phase-II) , Kushtia to evaluate the effect of fertilizer and water management practices on the yield and yield component of rice during 1983 to 1985. Results indicated that the yield was increased progressively with P application rate upt 100 kg P₂O₅/ha for T. Aus and 150 kg P₂0₅ /ha for Boro rice. Positive response of rice to the application of S and Zn both at 20 kg/ha was observed and the highest yield was obtained in treatment P₁₀₀S₄₀Zn₂₀ in both the cases. Significant responses to residual S and Zn during Aman season suggest that these two nutrients need to be applied only once in a year for two crops. Effect of water management practices on rice yield was found significant at 1% level. Alternate flooding and drying near saturation i.e. 5 day rotation method was the best compared to other methods. This method gave the highest water use efficiency (39.33 kg/ha/cm) and highest irrigation rate (9.00 Ha/cm). It required less irrigation water (96.00 cm) throughout the base period and saved about 45-60% water compared to other methods.

Keywords: Effect, Fertilizer, Water management, Rice

Location: Amla Experimental Farm, G.K. project Kushtia

Start Date: 00-07-1983

End Date: 00-06-1985

Program Area: Crop-Soil-Water Management

Commodity: Water management

Objectives:

1. To ascertain fertilizer and water use efficiency on the existing cropping sequence for maximizing crop production per unit land and time, and 2. To delineate deficiency of various plant nutrients in soil specially P, Sand Zn and to develope site specific recommendation for the G.K. project area.

Methodology:

Three experiments were conducted on rice at Amla Experimental Farm, G.K. project Kushtia during 1983 to 1985. Field experiments with T. Aus rice was conducted during 1983-84 which was followed by T. Aman rice experiment (1984) in the same layout and plan in order to study the residual effect of P, S and Zn. The third experiment was conducted on boro rice during 1984-85. The experiments were laid out in split plot design in three replications. There were 10 fertilizer treatments and three irrigation. treatments. The crops were harvested at full maturity. Data on grain and straw yields. no. of tiller/hill, no. of spikes/hill and plant height were recorded. All the data collected were statistically analysed

Source of Information: NUCLEAR SCIENCE AND APPLICATIONS, VOLUME I. NO. I, JANUARY, 1989

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

In conclusion, it may be suggested that for optimum production P, S and Zn fertilizers need to be supplied in addition to N application. Phosphorus, sulpher and Zinc at the rate of 80 kg P₂O₅, 30 kg S and 10 kg Zn may be applied once in a year (for two seasons) in rice-rice pattern. Water management through alternate flooding and drying upto near saturation technique may be suggested for efficient use of irrigation water for optimum production of rice.

Knowledge Management: Journal