Screening and Identification of Cold-Tolerant Phosphorus and Potassium Solubilizing Bacteria and Their Growth-Promoting Effects on Soybean in Cold Regions DOI Creative Commons
Hao Yan, Tianyi Wang, Han Wang

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 15(1), P. 40 - 40

Published: Dec. 27, 2024

In this study, we collected soybean inter-root soil (clay soil) from the cold region of Heilongjiang Province, China, screening for cold-tolerant phosphorus- and potassium-solubilizing bacteria by gradient-cooling-directed design mixed bacterial agents. This study screened phosphorus-solubilizing constructed We analyzed strain’s phosphorus/potassium solubilizing capacity, as well its organic acid secretion ability, to reveal mechanism detoxification phosphorus potassium. Clay Heilongjiang, was potting trials. The pot experiment used investigate growth-promoting effects strains applied soybeans analyze changes in activity on growth. A dominant strain P-5 (Pantoea ananatis) screened, amount 34.94 mg/L with a PSI (Phosphorus Solubilization Index) 1.80 7 days incubation at 15 °C. OD600 value (optical density 600 nm) 10th day 0.61. bacteria, K-1 (Rahnella aquatilis), solubilized 23.02 potassium under same culture conditions, KSI (Potassium Solubilization) 1.51 an 0.59 10. agents H-5 (25% 75% K-1), designed above two, detoxified 62.58 37.59 conditions. It shown that P-2 secretes gluconic lactic degrade insoluble low temperatures citric showed application (PSB), (KSB), (MSB) alone could enhance relative abundance Pseudomonas, Rhizobium, other genera planting soil, compared control treatment without (BLK). Indirectly, they can accumulation various organs soybean, promote development leaves stems, achieve effect promoting production increasing income. has important theoretical replacement chemical fertilizer microbial it practical strategic significance promotion income green safety China’s main grain-producing areas.

Language: Английский

A Comparative Assessment of Potassium Mineralization from Waste Mica by Application of KSB and FYM in Alluvial and Black Soils DOI
Sadiq Sani,

Rajendra Bairwa,

Abubakar Ibrahim Abdulkadir

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract Potassium (K) deficiency poses a major challenge to sustainable agriculture, affecting crop productivity and soil fertility. Conventional K fertilizers are costly environmentally harmful, highlighting the need for alternative sources. Mica (K-bearing mineral) occurs naturally remains underutilized due its slow-release nature. This study investigates whether potassium solubilizing bacteria (KSB), specifically Enterobacter wuhouensis, can enhance availability from mica in alluvial black soils. A 60-day incubation experiment was formulated conducted using complete randomized design (CRD) with 9 treatments 3 replications, varying proportions of mica, farmyard manure (FYM), KSB. The were assessed key properties, including pH, available potassium, microbial populations (bacteria, fungi, actinomycetes, KSB), dehydrogenase enzyme activity, power. Results showed that addition KSB FYM significantly improved solubilization compared alone, highest effects observed when combined 75% 25% FYM. combination led greatest increases reaching 322.67 kg ha⁻¹ 398.00 at 60 days. Microbial activity also substantial enhancement, bacterial counts 50.00 × 10⁶ cfu g⁻¹ 123.30 soil. Dehydrogenase peaked 25.34 µg TPF hr⁻¹ 75.33 These findings suggest integrating provides viable, eco-friendly, low-cost approach availability, thereby promoting production.

Language: Английский

Citations

0
Screening and Identification of Cold-Tolerant Phosphorus and Potassium Solubilizing Bacteria and Their Growth-Promoting Effects on Soybean in Cold Regions DOI Creative Commons
Hao Yan, Tianyi Wang, Han Wang

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 15(1), P. 40 - 40

Published: Dec. 27, 2024

In this study, we collected soybean inter-root soil (clay soil) from the cold region of Heilongjiang Province, China, screening for cold-tolerant phosphorus- and potassium-solubilizing bacteria by gradient-cooling-directed design mixed bacterial agents. This study screened phosphorus-solubilizing constructed We analyzed strain’s phosphorus/potassium solubilizing capacity, as well its organic acid secretion ability, to reveal mechanism detoxification phosphorus potassium. Clay Heilongjiang, was potting trials. The pot experiment used investigate growth-promoting effects strains applied soybeans analyze changes in activity on growth. A dominant strain P-5 (Pantoea ananatis) screened, amount 34.94 mg/L with a PSI (Phosphorus Solubilization Index) 1.80 7 days incubation at 15 °C. OD600 value (optical density 600 nm) 10th day 0.61. bacteria, K-1 (Rahnella aquatilis), solubilized 23.02 potassium under same culture conditions, KSI (Potassium Solubilization) 1.51 an 0.59 10. agents H-5 (25% 75% K-1), designed above two, detoxified 62.58 37.59 conditions. It shown that P-2 secretes gluconic lactic degrade insoluble low temperatures citric showed application (PSB), (KSB), (MSB) alone could enhance relative abundance Pseudomonas, Rhizobium, other genera planting soil, compared control treatment without (BLK). Indirectly, they can accumulation various organs soybean, promote development leaves stems, achieve effect promoting production increasing income. has important theoretical replacement chemical fertilizer microbial it practical strategic significance promotion income green safety China’s main grain-producing areas.

Language: Английский

Citations

1