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Labor Utilization for Rice Cultivation as Affected by Application of Different N-fertilizer and Method of Weed Control

Dr. K P Halder
CSO and Head
Farm Management Division, BRRI, Gazipur-1701

Abstract/ Executive Summary:

Labor utilization for rice cultivation as affected by application of different N-fertilizer and method of weed control was conducted at the BRRI Gazipur farm during aman 07 season to determine the relative profitability of different types of N- fertilizer and weed control method BRRI dhan41 was used for experimental purpose. It was observed that the interaction effect of method of weed control and application of N-fertilizer were significant on the production of tillers number, panicle number and grain yield. Two times deep placement of USG and application of refit produced the highest grain yield followed by hand weeding and weeder weeded plots. There was no significant difference among different weed control methods in prilled urea, broadcasting USG and deep placement of USG. Refit gave profit Tk. 6473 and Tk 3148 over hand weeding and weeder weeding, respectively. Weeder weeding gave a profit of Tk. 3325 over hand weeding. If USG was deep placed in one time and two times instead of PU, the profit was Tk. 4913 and Tk. 3017, respectively. The loss of Tk. 4162 was observed when USG was broadcasted instead of prilled urea application. It was also observed that two times deep placement instead of one time deep placement of USG gave a loss of Tk. 1896.

Keywords: Labor utilization, Rice, Application method, N-fertilizer and Weed control method

Location: BRRI farm, Gazipur

Start Date: 15-06-2007

End Date: 31-12-2007

Program Area: Socio-economic and Policy

Commodity: Rice

Objectives:

To determine the relative profitability of different types of N- fertilizer and weed control method for rice cultivation

Methodology:

The experiment was conducted at the West Byde of BRRI farm, Gazipur during aman 07 season in a Randomized Complete Block design with three replications. The unit plot size was 15m X10m. BRRI dhan41 was used for experimental purpose. The treatments were different application methods of N fertilizer (PU=Application of prilled urea as per recommended rate of N and applies 3 equal splits; USG1=Broadcasting the urea super granules as basal as per recommended rate of N; USG2= Application of USG as per recommended rate of N and applies one time; USG3= Application of USG as per recommended rate of N and applies 2 equal splits) and different weed control methods (M₁= REFIT at recommended dose + One hand weeding at 40 DAT; M₂= Hand weeding at 20 DAT, 40 DAT and M₃= Weeding by weeder at 20 DAT, 40 DAT). Data on yield, yield components, and labor utilization for each operation were collected. Partial budgeting was calculated from benefit and cost of treatments. Collected data were analyzed by following a standard statistical procedure and the mean differences were adjusted by LSD method.

Source of Information: ANNUAL RESEARCH REVIEW,2007-08; XV. FARM MANAGEMENT DIVISION, BRRI

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 25000/= (Twenty five thousands)

Total Budget (Tk.) : 25000/= (Twenty five thousands)

Achievement/Findings:

Application of refit gave the highest profit than hand weeding and use of weeder. In case of N- fertilizer application, one time deep placement of USG gave the highest profit than application of PU and two times deep placement of USG.

Knowledge Management: Report/Proceedings