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Abstract

The study was conducted to determine a suitable humidity to produce bioproduct containing phosphorus (P) - solubilizing purple nonsulfur bacteria (PNSB). The experiment with two factors was arranged in completely randomized blocks with three replications. Therein, the first factor included 5 humidity levels (30, 40, 50, 60, and 70%) and the second factor was the strains of P-solubilizing PNSB (W42, W48, W25, and the mixture of the three strains). The substrates were rice straw: pineapple leaf: husk ash (1: 3: 1). The C/N ratios at 30, 40, 60, and 70% humidity were suitable for a biofertilizer. In detail, the W42 strain and the bacteria mixture obtained lower C/N ratios (41.0 and 46.3, respectively) than the other two strains (56.1 and 57.4, respectively). The total P contents at different humidity levels and bacterial strains were equivalent. However, at 40 and 60% humidity, the bacterial density peaked, in which the W48 strain and the bacterial mixture resulted in the greatest, 0.460 and 0.455 x 106 CFU/g, respectively.

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How to Cite
Tran Trong Khoi Nguyen, Ly Ngoc Thanh Xuan, Tran Chi Nhan, Nguyen Thanh Phuong, Le Thi My Thu, Nguyen Duc Trong, & Nguyen Quoc Khuong. (2024). Nghiên cứu xác định ẩm độ phù hợp cho sản xuất chế phẩm sinh học chứa vi khuẩn quang dưỡng không lưu huỳnh màu tía hòa tan lân. Hue University of Agriculture and Forestry Journal of Agricultural Science and Technology, 8(3), 4360–4370. https://doi.org/10.46826/huaf-jasat.v8n3y2024.1158
Section
PLANTS

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