Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Production of Summer Onion to Different Sources and Levels of Potash

M.S. Naher
Scientific officer
Spices Research Centre, BARI, Shibgonj, Bogura, Bangladesh

S. Brahm
Senior scientific officer
Spices Research Centre, BARI, Shibganj, Bogra, Bangladesh

Md. Ashikul Islam
Senior scientific officer
Spices Research Centre, BARI, Shibganj, Bogra, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at the research field of the Spices Research Centre, Shibganj, Bogra,Bangladesh in the summer season of 2013-2014 to find out the response of summer onion (var. BARI Peaj-3) to different levels and sources of potassium application. The experiment was laid out in a randomized complete block design with three replications. Potassium fertilizer combinations were comprised of four levels (0, 60, 120 and 180kg ha^-1) and two potassium sources viz. Potassium Chloride (KCl) and Potassium Sulphate (K₂SO₄).A significant improvement in different growth and yield parameters of onion was observed in response to different sources and levels of potassium. The results indicated that the maximum plant height, leaves plant-1, length of leaf, length of bulb, diameter of bulb, average bulb weight, number of bulb per m2 and yield of bulbs were obtained from the onion crop which was treated with 120 kg Kha-1 from the Sulphate of Potash (SOP) fertilizer. Among the treatments the highest bulb yield (14.33 t ha^-1) was obtained with 120 kg K ha^-1and the lowest (6.92t ha-1) from the control. The highest disease incidents (65.67%) were recorded from the control followed by the plots which were treated with 60 kg K ha^-1(62.28%).The lowest disease incidence(49.22%) was recorded from 180 kg ha^-1 SOP treated plot. Application of 120 kg K ha^-1 from K₂SO₄ along with a blanket dose of N100P50S20B1.5Zn 4kg ha-¹ and 5 ton cowdung ha^-1appeared to be the optimum dose for maximizing the bulb yield of summer onion.

Keywords: Summer Onion; Potassium; Bulb Yield

Location: Spices Research Centre, Bogura, Bangladesh

Start Date: 10-08-2013

End Date: 12-10-2013

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Onion

Objectives:

To determine the response of summer onion (var. BARI Peaj-3) to different levels and sources of Potassium application.

Methodology:

The experiment was at Spices Research Centre in Bogra,Bangladesh. The soil of the experimental field belongs to Grey Terrace Soil. The soil was acidic in nature (pH 5.7). Total N and the exchangeable K status of the soil were also low. The available phosphorus, sulphur, boron and zinc contents were found to be either at par or below the critical level. Summer onion var.BARI Piaz 3 was used as a test crop. There were Seven treatment combinations viz. T1:0 kg K ha^-1(Control), T2:60 kg K ha^-1 from KCl, T3:120 kg K ha^-1 from KCl, T4:180 kg K ha^-1 from KCl, T5:60 kg K ha-¹from K₂SO₄, T6:120 kg K ha^-1 from K₂SO₄ and T7:180 kg K ha^-1 from K₂SO₄.The experiment was (RCBD) with three replications. Fertilizer with a blanket dose of N100 P50 S20 B1.5 Zn 4kg ha^-1 and cowdung (5 t ha^-1) was used. The experimental plots were prepared uniformly and mixed with well-decomposed cow dung. Apart from potassium,all other fertilizers were applied to the soil during final land preparation. Urea fertilizer was applied with three equal splits at basal,20 DAT and 40 DAT,respectively. The size of seed bed was 3 m × 1 m with 20 cm height. The onion seeds were directly sown in the raised seed bed followed by irrigation. About 40 days old seedlings were up rooted from the seed bed and transplanted in the morning to the main field with the spacing of 10cm × 15cm followed by irrigation. Intercultural operations like gap fillings, weeding and mulching were done when ever required. Second and third irrigation was given at 20 and 30 DAT,respectively. Insect and diseases were also controlled with appropriate control measures. Data of plant height (cm), length of leaf (cm) and number of leaves per plant were recorded from the selected five plants in each plotat30, 50, 70and 90days after transplanting (DAT). The plant height (cm) was taken from the neck of the onion bulb to the tip of the longest leaf. The leaf length (cm) was measured from the pseudo stem to the tip of the leaf and the number of leaves from each plant. Onions were harvested when more than 40% of leaves tops were bent down (Khan and Khan, 1990 and Khokhar and Jilani, 2000). The bulbs were placed for five days under partial shade in the open for curing. Yield components data (length of bulb per plant (cm), diameter of bulb per plant (cm), single weight of bulb (g), number of bulbs per plot and yield of bulb (t ha^-1) were collected and statistically analyzed using MSTAT-C computer package program (Russel, 1994).The significance of the differences among the pairs of treatment means was evaluated by the Duncan Multiple Range Test (DMRT) at 5% level of probability (Gomez, et al, 1984.

Source of Information: Bangladesh Agron. J. 2017, 20(1): 37-43

Article Link (Online Journal): file:///C:/Users/ICT%20COM%203/AppData/Local/Temp/Temp1_Journal%20list.zip/Journal%20list/14.%20BAJ%20Summer%20onion.pdf

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Application of 120 kg K ha^-1 from K₂SO₄ along with a blanket dose of N100 P 50 S20 B1.5 Zn 4 kg ha^-1 and 5 ton cowdung ha^-1 appeared as optimum dose for maximizing the bulb yield of summer onion of var. BARIPiaz-3 in AEZ-25 of Level Barind Tract, Bangladesh.

Knowledge Management: Journal