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Fundam Appl Agric. 2022; 7(2): 139-149


Faba bean (Vicia faba L.) growth and seed yield as influenced by zinc and boron micronutrients

Susmita Roy, Shrabani Das, Kallyan Kanty Saha, Md. Rashedur Rahman, Shubroto Kumar Sarkar, Md. Harun Rashid, Swapan Kumar Paul.




Abstract

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University (BAU), Mymensingh during rabi season, to study the effect of zinc and boron on growth and yield of faba bean (Vicia faba L.). The experiment consisted with three levels of zinc viz. 0, 1.0 and 2.0 kg Zn ha-1 and four levels of boron viz. 0, 1.0 kg B ha-1, 0.5 kg B ha-1 (basal application) + 0.5 kg B ha-1 (foliar application at pre-flowering stage) and 0.5 kg B ha-1 (foliar application at 30 days after sowing) + 0.5 kg B ha-1 (foliar application at pre-flowering stage). The experiment was laid out in randomized complete block design with three replications. In case of zinc, the highest plant height (67.9 cm), pods plant-1 (33.3), seed yield (2.24 t ha-1) and stover yield (2.55 t ha-1) of faba bean was observed when fertilized with 1 kg Zn ha-1whereas corresponding lowest values were recorded from control treatment. In case of boron, the highest number of branches plant-1 (6.51), pods plant-1 (39.1), seed yield (2.14 t ha-1) and stover yield (2.42 t ha-1) were obtained from application of 0.5 kg B ha-1 (basal application) + 0.5 kg B ha-1 (foliar application at pre-flowering stage). In interaction, the highest number of branches plant-1 (7.22), pods plant-1 (41.93), seed yield (2.46 t ha-1) and stover yield (3.05 t ha-1) were recorded from application of 1.0 kg Zn ha-1 with 0.5 kg B ha-1 (basal application) + 0.5 kg B ha-1 (foliar application at pre-flowering stage) whereas the lowest seed and stover yields were recorded from control treatment. Based on the present study it can be concluded that application of 1.0 kg Zn ha-1 coupled with 0.5 kg B ha-1 (basal application) + 0.5 kg B ha-1 (foliar application at pre-flowering stage) appears as the promising combination in respect of seed yield of faba bean.

Key words: Micronutrients, Faba bean, Growth, Yield






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