Author:
S.M. Hasanuzzaman, M.K. Islam, M.A. Alim, M.S. Hasan

Doi: 10.26480/faer.01.2024.56.62

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

The effect of boron, zinc and sulphur over the growth, yield and quality seed production of onion (Allium cepa) was studied at Sadar upazila, Nature district, Bangladesh. These two factorial experiments having four doses of fertilizers and five onion varieties. Five onion varieties namely Taherpuri, BARI piaz-1, BARI piaz-2, BARI piaz- 4 and Jhitka, and four doses of fertilizers B:Zn:S (0kg/ha:0kg/ha:0kg=0:0:0), B:Zn:S (2kg/ha:2kg/ha:12kg=50:50:50), B:Zn:S (4kg/ha:4kg/ha:24kg= 100:100:100) and B:Zn:S (6kg/ha:6kg/ha:36kg=150:150:150) were used in this experiment. Randomized complete block design with three replications was used to set up the experiment. The results revealed from the experiment is that the growth characters, seed yield and seed quality of onion crop was affected by the use of different does of fertilizers, different varieties and their combinations. The fertilizer dose B: Zn:S(6kg/ha:6kg/ha:36kg=150:150:150) produced highest results almost in all parameters except plant height and weight of 1000gm of seeds and lowest in control B: Zn: S (0kg/ha:0kg/ha:0kg=0:0:0). BARI piaz- 4 had the highest seed yield (1181.25kg/ha) and other all parameters were recorded superior from other varieties and BARI piaz-2 had the lowest seed yield (618.33kg/ha). Among the treatment combinations, fertilizer ratio B: Zn: S (150:150:150) with BARI-4 variety produced the highest seed yield (1735.00kg/ha) and other parameters except length of flowering stalks and number of umbels per plant and lowest seed yield in Taherpuri variety with fertilizer ratio B: Zn: S (0:0:0). As per the result, BARI piaz-4 is suitable for cultivation in this northern region. So, it is clear that effect of fertilizer and variety had the greater impact on optimum onion growth, yield and quality seed production. However, further research in different areas of the country is needed to recommend this variety for the whole area of the country.