Growth and Nitrogen Uptake by Potato and Cassava Crops Can Be Improved by Azospirillum brasilense Inoculation and Nitrogen Fertilization

Article Agriculture, Multidisciplinary

Potassium management effects on yield and quality of cassava varieties in tropical sandy soils

Bruno Gazola et al.

Summary: The effects of potassium fertilisation rate and timing on cassava yield and quality vary for different varieties, and the optimal fertilisation strategy should be determined based on the variety and growing period.

CROP & PASTURE SCIENCE (2022)

Add to Collection

Article Agronomy

Improving maize sustainability with partial replacement of N fertilizers by inoculation with Azospirillum brasilense

Mariangela Hungria et al.

Summary: The study demonstrates that inoculating maize with A. brasilense bacteria and metabolites via seeds can significantly increase grain yield in Brazil, under different conditions. The research also suggests that inoculation can partially replace the use of nitrogen fertilizers and reduce carbon dioxide emissions.

AGRONOMY JOURNAL (2022)

Add to Collection

Article Agronomy

Seed inoculation with Azospirillum brasilense and nitrogen fertilization for no-till cereal production

Eduardo Favero Caires et al.

Summary: In a high-yield environment, inoculation with Azospirillum brasilense caused slight changes in the nitrogen, phosphorus, and potassium concentrations in cereal crops, with varying effects on maize and wheat. Wheat showed a more significant response to inoculation compared to maize, particularly in response to nitrogen application levels. Rainfall distribution during growing seasons may also impact the crop responses to inoculation and nitrogen fertilization levels. Overall, inoculation resulted in increased maize and wheat yields under similar nitrogen input, with the strategy showing potential economic gains.

AGRONOMY JOURNAL (2021)

Add to Collection

Article Agronomy

A novel essential small RNA, sSp_p6 influences nitrogen fixation in Azospirillum brasilense

Vatsala Koul et al.

Summary: The small RNA sSp_p6 from Azospirillum brasilense Sp245 plays an important role in nitrogen metabolism, being modulated under carbon and nitrogen stress and interacting with nitrogen fixation-related genes, showing its essential role in biological nitrogen fixation. Furthermore, overexpression of sSp_p6 can increase lateral root formation in the host plant Sorghum, leading to improved plant root morphology.

RHIZOSPHERE (2021)

Add to Collection

Article Soil Science

Detection of Azospirillum brasilense by qPCR throughout a maize field trial

Salome Urrea-Valencia et al.

Summary: Although Azospirillum brasilense is commonly used in inoculant formulations, its prevalence in field conditions is still limited. In this study, A. brasilense was found in soil only at radicle emergency, and from the fifth day onwards, it was detected in roots at concentrations ranging from 10(3) to 10(5) CFU g(-1) of fresh root. This research provided a sensitive method for monitoring A. brasilense in field trials and offered new insights into the ecology of maize and A. brasilense interaction.

APPLIED SOIL ECOLOGY (2021)

Add to Collection

Article Soil Science

Outstanding impact of Azospirillum brasilense strains Ab-V5 and Ab-V6 on the Brazilian agriculture: Lessons that farmers are receptive to adopt new microbial inoculants

Mariana Sanches Santos et al.

Summary: Microbial inoculants or biofertilizers are biotechnological products aimed at replacing chemical fertilizers, reducing production costs, and environmental pollution. Brazil has a long tradition in the use of rhizobial inoculants and has shown impressive results in the application of two plant-growth-promoting strains in various crops in recent years.

REVISTA BRASILEIRA DE CIENCIA DO SOLO (2021)

Add to Collection

Article Agronomy

Improved Production of High-Quality Potato Seeds in Aeroponics with Plant-Growth-Promoting Rhizobacteria

Oksana V. Tkachenko et al.

Summary: The study demonstrates that inoculation with the plant-growth-promoting rhizobacterium Azospirillum brasilense Sp245 under aeroponic conditions significantly promotes the growth and development of potato, increasing both the yield and starch content of minitubers.

POTATO RESEARCH (2021)

Add to Collection

Article Agronomy