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Combined Effect of Npksznb on the Yield Contributing Characteristics of Cowpea. Season: 2015-2016

S. Aktar
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

M. A. Hossain
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

M. Shahiduzzaman
Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at Regional Pulses Research Station, Bangladesh Agricultural Research Institute, Madaripur during rabi season of 2015-16 to estimate the effective dose of nutrients for cowpea yield maximization. Five treatments were included in the study viz. T₁ (Control), T₂ (20-20-20 NPK kg/ha), T₃(20-20-20-10 NPKS kg/ha), T₄ (20-20-20-10-2 NPKSZn kg/ha) and T₅ (20-20-20-10-2-1.5 NPKSZnB kg/ha).The yield of cowpea increased significantly due to the application of S, Zn and B. The highest seed yield (1570 kg/ha) was produced in treatment T₅(20-20-20-10-2-1.5 NPKSZnB kg/ha).

Keywords: Pulses, Lentil, Grain yield, Irrigation, Soil fertility, Cowpea

Location: Regional Pulses Research Station, Bangladesh Agricultural Research Institute, Madaripur, Bangladesh

Start Date: 00-00-2015

End Date: 00-00-2016

Program Area: Crop-Soil-Water Management

Commodity: Cowpea, Soil fertility

Objectives:

To determine the Combined effect of NPKSZnB on the yield contributing characteristics of Cowpea.

Methodology:

The field experiment was conducted at Regional Pulses Research Station, Bangladesh Agricultural Research Institute, Madaripur during the rabi season of 2015-16. The trial consisted of five treatments such as T₁=Control, T₂= 20-20-20 NPK kg/ha, T₃= 20-20-20-10 NPKS kg/ha, T₄=20-20-20-10-2 NPKSZn kg/ha, T₅=20-20-20-10-2-1.5 NPKSZnB kg/ha. The initial soil status of the experimental field is presented. The experiment was laid out in a Randomized Complete Block design with 3 replications. The unit plot size was 4m×2m. All the fertilizers were applied and incorporated into the soil during final land preparation. The variety of cowpea was BARI Felon-1. Seeds were sown on 8 December 2015 at a rate of 50 kg ha^-1. The seeds were sown in furrows at 40 cm x 10 cm spacing at a depth of 2 to 3 cm below the soil surface. Two irrigations were applied, one at 10DAS another 30 DAS, at the flowering stage of crop. Intercultural operations such as thinning, weeding, applying insecticides were done as and necessary. The mature pods of cowpea were harvested three times on 18 March, 30 March and 6^th April 2016. At maturity, seed yield and yield contributing characters were recorded. The collected data were analyzed statistically.

Source of Information: Annual Research Report-2016-2017, Pulses Research Centre, BARI, Ishurdi, Pubna, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The effect of nutrients on the growth and seed yield of cowpea is evident that T₅(20-20-20-10-2-1.5 NPKSZnB kg/ha) showed better response than other treatments. This is the first year trial. The experiment will be continued in the next year for confirmation.

Knowledge Management: Report/Proceedings