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Effect of Cutting Management and Nitrogen Levels on Fodder Production and Grain Yield of Barley

M. Nurul Islam
SSO
Agronomy Division, Gazipur

M. Altab Hossain
SSO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

The experiment was conducted at BARI farm, Gazipur, during rabi season of 2004-2005 to find out the optimum nitrogen dose and cutting time for green fodder as well as higher grain yield of barley. Four cutting managements (one cutting at 42 DAS; two cutting at 42 and 70 DAS; one cutting at 42 DAS and left for grain production; normal grain production as control) and three nitrogen levels (60, 80, 100 kg/ha N) were studied in this experiment. Barley grown with 80 kg/ha N and cutting at 42 and 70 DAS produced the highest green fodder (18.27 t /ha), while cutting at 42 DAS and left for grain production produced 3.42 t/ha fodder and 2.33 t/ha grain

Keywords: Barley, Cutting management, Nitrogen level, Fodder production, Yield

Location: Joydebpur, Gazipur

Start Date: 28-11-2004

End Date: 19-03-2005

Program Area: Crop-Soil-Water Management

Commodity: Barley

Objectives:

The experiment was conducted to determine the cutting time with optimum N dose for higher fodder and grain yield of barley.

Methodology:

The experiment was conducted at the farm of BARI, Joydebpur, Gazipur during rabi season of 2004-2005. The soil belongs to Chhiata series with pH 6.8 under AEZ 28. The experiment consisted of 4 x 3 treatment structure involving four cutting management and three nitrogen levels (60, 80 and 100 kg N/ha). The treatment combinations were laid out in a randomized complete block design with three replications. Four cutting managements were: (T₁) cutting for fodder at 70 DAS, (T₂) cutting for fodder at 42 and 70 DAS, (T₃) cutting at 42 DAS and left for grain production and (T₄) crop grown only for grain production. Unit plot size was 3 m x 4 m. Half of nitrogen and full dose of other fertilizers (24 kg P and 40 kg K/ha) were incorporated into the soil during final land preparation. Seeds of barley (cv. BARI Barley 2) were sown continuously in line 20 cm apart on November 28, 2004. A light irrigation was given to the crop for uniform emergence. Remaining ½ N was top dressed in two equal splits at 20 and 70 DAS in T₁; 42 and 70 DAS in T_2; 42 and 60 DAS in T₃; and 20 and 60 DAS in T₄. Fodder cutting was followed by top dressing and then by irrigation. Other irrigations were given after top dressing at 20 and 60 DAS. Fodder cutting was followed by top dressing and then by irrigation. Other irrigations were given after top dressing at 20 and 60 DAS. The crop was cut for green fodder leaving 6 cm at the bottom at 42 DAS and 70 DAS as per treatment. Green fodder were sampled and oven dried to calculate dry fodder yield. Five mature barley plants were selected randomly from each plot to collect data on yield components. The mature barley crop was harvested from whole plot on March 19, 2005 (111 DAS) for grain. The data were analyzed statistically and the means were compared using Least Significance Difference test (LSD).

Source of Information: Annual Report, Agronomy Division 2004-2005,BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 10,000/-

Total Budget (Tk.) : 10,000/-

Achievement/Findings:

From the results it may be concluded that barley may be grown either only for fodder production or both for fodder and grain production. If the interest is to get only fodder, the growers are advised to grow barley crop with N80 P24 K40 kg/ha and to cut for fodder at 42 and 70 DAS. On the other hand, if the growers wish to have both fodder and grain from the same crop, they are advised to grow crops with N80 P24 K40 kg/ha and to cut for fodder at 42 DAS and left for grain production

Knowledge Management: Report/Proceedings