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Requirement of Boron on the Growth and Yield of Blackgram (2016--2017)

SHAMIMA AKTAR
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. A. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

J. RAHMAN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

A. BISWAS
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

The experiment was conducted at RARS, Jamalpur during the Kharif-1 season of 2016 to find out optimum rates of boron for growth and yield of blackgram. The experiment was laid out in RCBD with three replications.The treatments were T₁= Control, T₂ = 20-20-20-10-2-0.5 kg NPKSZnB/ha^-1, T₃= 20-20-20-10-2-1.0 kgNPKSZnB/ha^-1, T₄=20-20-20-10-2-1.5 kg NPKSZnB/ha^-1, T₅=20-20-20-10-2-2.0 kg NPKSZnB/ha^-1, T₆=20-20-20-10-2-2.5kg NPKSZnB/ha^-1. Application of B on blackgram ponded positively and contributed to achieving higher yield over control treatment to a different extent. Treatment T₃= 20-20-20-10-2-1.0kg NPKSZnB/ha^-1 and T₄= 20-20-20-10-2-1.5kg NPKSZnB/ha^-1 gave the highest and similar seed yield 1211 kg/ha that was 20 % higher than the control treatment. So, it may be concluded that the application of 1.0 kg boron ha^-1 with a blanket dose of 20-20-20-10-2 NPKSZn ha^-1was suitable for successfully blackgram cultivation in the Jamalpur region.

Keywords: Boron, Blackgram, Agro-Ecological Zone

Location: Regional Agricultural Research Station, Jamalpur

Start Date: 00-00-2016

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Micronutrient, Black gram

Objectives:

The experiment was undertaken to study the requirement of boron on the growth and yield of blackgram

Methodology:

The experimental site was of medium-high land belonging to the Old Brahmaputra Flood plain under Agro-Ecological Zone 9 (UNDP & FAO, 1988). The experiment was conducted at the Regional Agricultural Research Station, Jamalpur during Kharif-II season of 2016 to find out the effect of boron on growth and yield and optimum rates of boron for blackgram. The design of the experiment was RCB with 3 replications. Each treatment was sown in unit plot having 3m × 4m with the spacing of 30 cm between rows. Spacing between two plots and replications to replication were 1m and 1.5m respectively. BARI Mash-3 was used as a variety in the experiment. Treatments included in the experiment were: T₁=20-20-20-10-2 kg NPKSZn/ha^-1, T₂=20-20-20-10-2-0.5 kg NPKSZnB/ha^-1, T₃=20-20-20-10-2-1.0 kg NPKSZnB/ha^-1, T₄=20-20-20-10-2-1.5 kg NPKSZnB/ha^-1, T₅= 20-20-20-10-2-2.0 kg NPKSZnB/ha^-1, T₆=20-20-20-10-2-2.5 kg NPKSZnB/ha^-1. Seeds were sown on September 01, 2016, and harvested on 2^nd November 2016 maintaining 30-row distances in a continuous line. Weeding was done 20 days after the emergence of the crop. Grain yield was calculated from the whole plot. Yield contributing characters were taken from 10 randomly selected plants from the middle rows of each plot. Data were analyzed with the help of a computer package program STAR and means were separated following the LSD test at a 5% level of significance.

Source of Information: Annual Research Report 2016--2017, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Plant height was almost similar among the fertilizer treatment ranged from 47.00 to 56.13 cm though the highest was taller in T₃ (56.13 cm) and control the lowest T₁ (47.00 cm). The number of branch/plant differed significantly ranged from 2-4 with the difference in fertilizer treatment the highest number of branch/plant was produced in treatment T₆ (4.20) followed by T₃(2.9) and 1.5 in (T₂). The result presented revealed that except days to flowering, days to maturity and 100-seed weight did not differ significantly among the treatments. Days to flowering ranged from 36-38 days. The highest number of pod/plant was found from 20-20-20-10-2-1 kg NPKSZnB/ha (T₄) where extra 1.5 kg B/ha were applied and the lowest in control treatment 20-20-20-10-2-0 kgNPKSZnB/ha (T₁) where no B was applied. Hundred the seed weight ranged from 4.6 gm - 4.7 gm and did not differ significantly among the treatment.No significant difference was observed in pod length among the treatment which ranged from 4.6 - 3.5cm whereas pod size in the control plot was the lowest (3.5 cm). The highest seed yield was recorded in T₃and T₄ both producing 1211kg/ha followed by T₅ (1141 kg/ha) and T₆ (1071 kg/ha) and control (T₁) produced the least (1008 kg/ha). Application of B @ 1.0 and 1.5 kg/ha might influence the yield of blackgram to achieve a higher yield without any statistical significance. From the experiment, it was obvious that the application of B increased the yield substantially over the control (T₁) and even higher doses of B @ 2.0 kg/ha (T₅) and 2.5 kg/ha (T₆). The highest percentage of yield increment (20.13%) was recorded both in T₃andT₄treatment followed by T₅(13%) indicating the response of B in blackgram.

Knowledge Management: Report/Proceedings