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Influence of Phosphorus Fertilizer on Root Growth, Dry Matter Accumulation and Yield of Sesame

M. A. Hossain
SSO
Agronomy Division, Gazipur

M. S. A. Khan
SO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

The experiment was conducted at Joydebpur, Gazipur during kharif-I season of 2001-2002 to determine the effect of P fertilizer application on root growth, dry matter accumulation and yield of sesame varieties. The treatments comprised two sesame varieties (BARI Til-2 and BARI Til-3) and four levels of phosphorus (0, 30, 60 and 90 kg /ha) in this experiment. Seeds of two varieties of sesame were sown in lines with 30 cm x 5 cm spacing on March 2, 2002. Root length density (RLD) of sesame varieties varied greatly due to P application. Maximum RLD was recorded from variety BARI Til-3 and least in the variety BARI Til-2. Total dry matter (TDM) and the pattern of dry matter accumulation of sesame varieties over time also caused marked variation due to different levels of P. Highest TDM was observed in plants treated with 90 kg P₂0₅ /ha for both the varieties at all the growth stages. BARI Til-3 produced significantly the highest seed yield (1051 kg/ha) and the lowest was found in BARI Til-2 (956 kg /ha). However, the result revealed that application of 90 kg P₂0₅ ha gave the highest plant growth and yield in case of BARI Til-3 and 60 kg P₂0₅ /ha for BARI Til-2.

Keywords: Phosphorus, Root growth, Dry matter accumulation, Yield, Sesame

Location: Joydebpur, Gazipur

Start Date: 02-03-2002

End Date: 12-06-2002

Program Area: Crop-Soil-Water Management

Commodity: Sesame

Objectives:

To determine the effect of P fertilizer application on root growth, dry matter accumulation at different growth stages and yield of sesame varieties.

Methodology:

The experiment was conducted at the Bangladesh Agricultural Research Institute Farm Joydebpur, Gazipur during kharif-I season of 2002. The treatments comprised two sesame varieties (BARI Til-2 and BARI Til-3) and four levels of phosphorus (0, 30, 60 and 90 kg P₂O₅/ha) and were laid out in RCB (factorial)with three replications. The unit plot size was 3m x 5m. Plots were fertilized @ 90-40-20 kg N K₂O S/ha in the form of urea, muriate of potash and gypsum respectively. P was applied as triple super phosphate (TSP). Half of N and full PKS was applied at the tine of final land preparation and the remaining half of N was top-dressed during flower initiation. Seeds of two sesame varieties were sown in lines with 30 cm x 5 cm spacing on March 2, 2002.

Source of Information: Annual Report, Agronomy Division 2001-2002

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 10,000/-

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

Achievement/Findings:

BARI Til-3 produced significantly the highest seed yield (1051 kg/ha) and the lowest was found in BARI Til-2 (956 kg /ha). However, the result revealed that application of 90 kg P₂0₅/ ha gave the highest plant growth and yield in case of BARI Til-3 and 60 kg P₂0₅ /ha for BARI Til-2.

Knowledge Management: Report/Proceedings