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Manipulation of Seed Rate to Reduce Weed Prevalence in Jute Field.

A.T.M. Morshed Alam
SO
Crop Management Department, Agronomy Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

M. Mahboob Hossain
PSO (IC)
Farm Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Abul Fazal Mollah
SO
Farm Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Abstract/ Executive Summary:

The experiment was conducted at Manikganj and Rangpur in 2001 to ascertain the prospect of reducing weed through manipulation of seeding rate and subsequent reduction in cost of cultivation. It was laid out in RCBD with 3 replications. Crops were sown on five different seeding rate viz., 4 kg/ha, 6 kg/ha, 8 kg/ha, 10 kg/ha and 12 kg/ha of tossa jute variety O-9897 and OM-1 regarded as treatments at 6 April. Results showed that at Manikganj station, the highest plant population at harvest was obtained from seed rate of 12 kg/ha (2.4 lac/ha) which was followed by decline with seed rate up to 4 kg/ha from O-9897. Status of weed population was inversely grown with plant stand i.e., the lowest number of weed was grown seed rate of 12 kg/ha (2.55 lac/ha). But the highest fibre and stick yields were obtained from seed rate of 8 kg/ha (2.84 & 5.90 t/ha). In case of variety OM-1, similar results were given like as O-9897. Almost above scenario was seen at Rangpur station like as Manikganj. That is, when seed rate will be high, plant stand will be high and weed will be inversely populated. But seed rate 8 kg/ha was optimum.

Keywords: Jute, Seed rate, Weed, Prevalence

Location: Jute Agriculture Experimental Station Manikganj and Jute Research Regional Station Rangpur.

Start Date: 01-03-2001

End Date: 31-12-2001

Program Area: Seed Technology

Commodity: Jute

Objectives:

To ascertain the prospect of reducing weed prevalence through manipulation of seeding rate.

Methodology:

The study was carried out at Jute Agriculture Experimental Station Manikganj and Jute Research Regional Station Rangpur in 2001 to ascertain the prospect of reducing weed prevalence through manipulation of seeding rate and subsequent reduction in cost of cultivation. The experiment was laid-out in RCBD with three replications. Crops were sown on 6 April. Crops were sown on five different seeding rate viz., 4 kg/ha, 6 kg/ha, 8 kg/ha, 10 kg/ha and 12 kg/ha of Corchorus olitorius L. varieties O-9897 and OM-1 regarded as treatments. Unit plot size would be 4.0m x 2.5m. Space between plot to plot and around the field 1.0m and between two replications 1.5m. were maintained. Plants were harvested at 120 days after each sowing. Other cultural and intercultural operations were attended as per BJRI recommendation.

Source of Information: Annual Research Report(Agriculture Research on Jute): 2001-02, Bangladesh Jute Research Institute

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 10000/-

Total Budget (Tk.) : 10000/-

Achievement/Findings:

At Manikganj station, the highest plant population at harvest was obtained from seed rate of 12 kg/ha (2.4 lac/ha) which was followed by decline with seed rate up to 4 kg/ha from O-9897. Status of weed population was inversely grown with plant stand i.e., the lowest number of weed was grown seed rate of 12 kg/ha (2.55 lac/ha). But the highest fibre and stick yields were obtained from seed rate of 8 kg/ha (2.84 & 5.90 t/ha). In case of variety OM-1, similar results were given like as O-9897. Almost above scenario was seen at Rangpur station like as Manikganj. That is, when seed rate will be high, plant stand will be high and weed will be inversely populated. But seed rate 8 kg/ha was optimum.

Knowledge Management: Report/Proceedings