EFFICIENCY OF NITROGEN-FIXING BACTERIA BRADYRHIZOBIUM SP. AND PHOSPHATE-SOLUBILIZING BACTERIA PSEUDOMONAS SP., PANTOEA SP. ON THE GROWTH OF MAIZE [ZEA MAYS L.]

Nguyễn Chánh Tín; Nguyễn Vĩnh Thái; Trương Thị Anh Thư; Trần Võ Khánh Toàn; Trần Thị Giang

doi:10.34238/tnu-jst.7220

EFFICIENCY OF NITROGEN-FIXING BACTERIA BRADYRHIZOBIUM SP. AND PHOSPHATE-SOLUBILIZING BACTERIA PSEUDOMONAS SP., PANTOEA SP. ON THE GROWTH OF MAIZE [ZEA MAYS L.]

About this article

Received: 11/01/23 Revised: 27/04/23 Published: 28/04/23

Authors

1. Nguyen Chanh Tin, Can Tho University
2. Nguyen Vinh Thai, Can Tho University
3. Truong Thi Anh Thu, Can Tho University
4. Tran Vo Khanh Toan, Can Tho University
5. Tran Thi Giang , Can Tho University

Abstract

This study investigated the effects of nitrogen-fixing bacteria Bradyrhizobium sp. TTB2.1 and phosphate-solubilizing bacteria Pseudomonas sp. BKD2.1, Pseudomonas sp. TTB4.4, Pantoea sp. TTB4.1 on the growth and development of corn under field conditions. The results showed the yield in the treatments with phosphate-solubilizing bacteria Pantoea sp. TTB4.1 25.64 tons/ha (first crop) and 27.22 tons/ha (second crop), Pseudomonas sp. BKD2.1 25.71 tons/ha (first crop) and 26.98 tons/ha (second crop). Criteria of plant height, fruit length, leaf length, number of fruits per tree and chlorophyll content in leaves are better in the bacterial irrigation treatments than in the negative control. Criteria of nitrogen, soluble phosphorus, and microbial density in the soil changed before sowing and after harvest. Two strains of phosphate solubilizing bacteria Pseudomonas sp. BKD2.1 and Pantoea sp. TTB4.1 has the best effect on the growth and development of the corn.

Keywords

Corn; Bacteria; Dissolve phosphorus; Microbial fertilizer; Nitrogen fixation

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DOI: https://doi.org/10.34238/tnu-jst.7220

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