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Yield of Cotton with Soil-applied and Foliar-applied Urea

Dr. Md. Kamrul Islam
Senior Scientific Officer
Cotton Research, Training and Seed Multiplication FarmSreepur, GazipurBangladesh

Md. Habibur Rahman Mian
Cotton agronomist
Cotton Research, Training and Seed Multiplication FarmSreepur, GazipurBangladesh

Abstract/ Executive Summary:

Established soil-applied N was used to evaluate foliar-applied N for increasing cotton yield. The experiment was conducted at the Cotton Research, Training and Seed Multiplication Farm, Sreepur, Gazipur in 2002-2003. Cotton were grown in single row and pair row that received soil-applied recommended dose (250 kg/ha) Urea, soil-applied reduced dose of Urea with two different levels viz. 8 sprays or 4 sprays of 2% foliar Urea. The highest seed cotton yield (2.18 t/ha) was obtained from pair-row plots with reduced dose of soil applied Urea with 8 foliar sprays of 2% Urea starting from first flowering.

Keywords: Cotton, soil- applied Urea, foliar- applied Urea, single row, pair row, yield

Location: Sreepur, Gazipur

Start Date: 2002

End Date: 2003

Program Area: Crop-Soil-Water Management

Commodity: Cotton

Objectives:

The objective of this experiment was to compare the effect of full doses of soil-applied N against reduced doses of soil-applied N in combination with foliar applied N under two row arrangement.

Methodology:

The experiment was conducted at the Cotton Research, Training and Seed Multiplication Farm, Sreepur, Gazipur in 2002-2003. The treatments consisted of two soil applied and four soil+ foliar applied Urea doses that were: 1. Cotton in single row with full doses of soil-applied Urea (250 kg/ha) 2. Cotton in pair row with full doses of soil-applied Urea 3. Cotton in single row with reduced dose with reduced doses of soil-applied Urea (150 kg/ha) + 8 foliar spray of 2% Urea starting from first flowering at 7 days interval 4. Cotton in pair row with reduced dose with reduced doses of soil-applied Urea (150 kg/ha) + 8 foliar spray of 2% Urea starting from first flowering at 7 days interval 5. Cotton in single row with reduced dose with reduced doses of soil-applied Urea (150 kg/ha) + 4 foliar spray of 2% Urea starting from first flowering at 15 days interval 6. Cotton in pair row with reduced dose with reduced doses of soil-applied Urea (150 kg/ha) + 4 foliar spray of 2% Urea starting from first flowering at 15 days interval. The experiment was conducted in RCBD with 3 replications. The unit plot size was 6m × 4.5m. In single row plots, the spacing was 90 cm × 60 cm. In pair row plots, the spacing was 70 cm × 60 cm within the pair and 110 cm × 60 cm among the pair. The plant population in a experimental unit was equal for both types of spacing. All the plots received the equal management practices. Data were collected from the 4 middle rows and were analyzed by MSTAT.

Source of Information: Yield of Cotton with Soil-applied and Foliar-applied Urea. Annual Research Report, Cotton Development Board, Ministry of Agriculture, Bangladesh, 2003

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results revealed that the soil+ foliar applied Urea is better than only soil-applied Urea, 8 foliar spray is better than 4 foliar spray and pair row is better than single row.

Knowledge Management: Report/Proceedings