Article
Agronomy
Wanderson Lima Cunha, Maria Rita da Silva Andrade Leonel, Ana Paula Brito de Sousa, Mickaelle Alves de Sousa Lima, Adrielle de Jesus Machado Santos, Gildean Macedo do Nascimento, Gerbeli de Mattos Salgado Mochel, Sylvia Leticia Oliveira Silva, Camila Pinheiro Nobre, Antonia Alice Costa Rodrigues, Ivaneide de Oliveira Nascimento
Summary: This study evaluated the effects of native arbuscular mycorrhizal fungi (AMF) from Maranha similar to o Cerrado on cowpea plants infected with Fusarium oxysporum. The results showed that symbiosis with Claroideoglomus etunicatum and Acaulospora morrowiae improved the vegetative development of cowpeas and reduced the severity of the disease.
Article
Agronomy
M. Semiramis Gutierrez-Nunez, Mayra E. Gavito, David Ortiz-Salgado, John Larsen
Summary: Efficient management of soil biota and fertilization requires understanding the functional relationships between soil biota and crops, as well as their interactions with management practices. This study investigated the functional interactions between native arbuscular mycorrhizal (AM) fungi and maize nutrition, development, and yield, and found that the abundance of root-colonizing fungi was negatively related to early shoot N and P levels, resulting in reduced yield. These findings highlight the importance of considering the involvement of other root fungi in early nutrition and yield depressions in low fertility soils.
Article
Agronomy
Philip J. White, Konrad Neugebauer
Summary: The release of carboxylates by roots increases manganese phytoavailability and uptake by plants. The success of Lambers and colleagues' approach depends on plants being able to increase root manganese uptake and leaf manganese concentration when releasing carboxylates, as well as tolerating the resulting higher tissue manganese concentrations.
Article
Environmental Sciences
E. Shtull-Trauring, A. Cohen, M. Ben-Hur, M. Israeli, N. Bernstein
Summary: Treated wastewater (TWW) is increasingly used for agricultural irrigation, with higher concentrations of plant nutrients N, P, and K than freshwater. However, excessive nutrient inputs can be harmful. The study developed six indices to assess TWW-irrigation sustainability and spatio-temporal trends in NPK loads, indicating the need for redistribution of high-quality TWW in specific areas and the development of local environmental standards for maximizing nutrient utilization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Luciany Favoreto, Rafaela Bueno, Angelica Calandrelli, Patricia P. Franca, Mauricio C. Meyer, Andressa C. Z. Machado
Summary: This study found that the nematode Aphelenchoides besseyi can parasitize cowpea, causing leaf deformation and stem necrosis. This is the first report of parasitism of this nematode on cowpea in Brazil.
Article
Multidisciplinary Sciences
Kun Hou, Ying Huang, Xiangmin Rong, Jianwei Peng, Chang Tian, Yongliang Han
Summary: The study found that fertilization at a depth of 10cm can significantly reduce ammonia volatilization and N and P losses by runoff in red paddy soil in southern China, minimizing environmental impact.
Article
Agronomy
J. Cedeno, J. J. Magan, R. B. Thompson, M. D. Fernandez, M. Gallardo
Summary: Substrate-grown crops in southern Spain make up 10% of intensive greenhouse horticulture, and their free-draining nature leads to significant nutrient loss in drainage, causing water contamination. This study examined two management approaches, ratio-based and uptake concentration-based, to reduce nutrient loss in drainage. Both strategies significantly reduced nutrient application, with ratio-based management reducing nutrient loss by 58-77% and uptake concentration-based management reducing it by 65-80%.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Nora Vitow, Theresa Zicker, Akane Chiba, Anika Zacher, Bettina Eichler-Loebermann, Stefanie Schulz, Michael Schloter, Christel Baum, Peter Leinweber
Summary: Legume catch crops can significantly increase arbuscular mycorrhiza formation of subsequent barley crops, with serradella showing a stronger impact than fertilization treatments. Serradella enhances phosphodiesterase activities and decreases β-glucosidase activities in soil, while plant availability of P is not significantly affected. These findings suggest that even non-host catch crops can promote mycorrhiza formation and P mobilization in soil for subsequent main crops.
Article
Plant Sciences
Hang Zhou, Ya Liu, Baomin Mu, Fei Wang, Naijie Feng, Dianfeng Zheng
Summary: This study investigates the effects of nitrogen limitation on carbon and nitrogen metabolism, as well as nutrient uptake in mung bean plants. The results show that nitrogen limitation inhibits photosynthesis, reduces nitrogen metabolism, and decreases P and K use efficiency. Furthermore, the study also identifies a cultivar with better adaptability towards nitrogen fertilizers.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Multidisciplinary Sciences
Hamid Khan, Waqas Ali Akbar, Zahir Shah, Hafeez Ur Rahim, Ali Taj, Juha. M. Alatalo
Summary: In alkaline-calcareous soil, combining mineral phosphate fertilizers with phosphate-solubilizing bacteria (PSB) can improve mungbean phosphorus acquisition, use efficiency, nitrogen fixation, and yield, while also enhancing soil fertility.
Article
Soil Science
Isidro Beltran-Medina, Felipe Romero-Perdomo, Lady Molano-Chavez, Angelica Y. Gutierrez, Antonio M. M. Silva, German Estrada-Bonilla
Summary: Phosphate-solubilizing bacteria can improve soil P availability and increase crop productivity. In this study, the inoculation of Rhizobium sp. B02 increased the labile inorganic P fraction and improved the growth and productivity of maize. The strain reduced the need for P fertilizer by 50% while maintaining similar effects as complete P fertilization. Overall, Rhizobium sp. B02 inoculation enhanced soil P availability and showed potential for sustainable agriculture.
NUTRIENT CYCLING IN AGROECOSYSTEMS
(2023)
Article
Agronomy
Joscha N. Becker, Janis Grozinger, Abhijit Sarkar, Barbara Reinhold-Hurek, Annette Eschenbach
Summary: Inoculation with climate-adapted rhizobia can increase legume productivity in drought-prone regions. The inoculation had no significant effect on nodulation and soil C and N pools, suggesting sufficient indigenous rhizobia in the soil. However, the competitiveness of the inoculant strain in establishing itself in the root nodules varied depending on the local conditions, indicating the need for regional adjustment of inoculation strategies.
Article
Multidisciplinary Sciences
Margarida G. Simbine, Mustapha Mohammed, Sanjay K. Jaiswal, Felix D. Dakora
Summary: Identification and symbiotic characterization of indigenous rhizobial isolates are crucial for sustainable grain legume production. This study in Northern Mozambique revealed high genetic variability among indigenous cowpea nodulating rhizobia, with isolates showing diverse nodulation capabilities and photosynthetic activities in cowpea plants. Certain isolates exhibited potential as highly effective candidates for inoculant formulations, outperforming commercial strains in terms of nitrogen fixation effectiveness. However, further research is needed to evaluate the ecological adaptability and symbiotic performance of these strains in field conditions.
SCIENTIFIC REPORTS
(2021)
Article
Ecology
Ruzhen Wang, Junjie Yang, Heyong Liu, Jordi Sardans, Yunhai Zhang, Xiaobo Wang, Cunzheng Wei, Xiaotao Lu, Feike A. Dijkstra, Yong Jiang, Xingguo Han, Josep Penuelas
Summary: Phosphorus limitation is expected to increase due to nitrogen-induced terrestrial eutrophication, but can be alleviated through transformations of phosphorus pools.
Article
Biodiversity Conservation
Lei Qin, Chris Freeman, Xueying Jia, Zhongsheng Zhang, Bo Liu, Shaoqing Zhang, Ming Jiang
Summary: The study found that agricultural intervention significantly increased total phosphorus in agricultural and disturbed peatlands, decreased soil organic carbon content and total nitrogen in surface soil of agricultural peatlands, and yet total nitrogen significantly accumulated at 20-30 cm depth in both types of peatlands. Enzyme activities of N-acetyl-13-glucosaminidase and phosphatase declined in agricultural peatlands, with a stronger decrease in phosphatase in disturbed peatlands.
ECOLOGICAL INDICATORS
(2021)