Article
Agronomy
Elzbieta Radzka, Katarzyna Rymuza, Andrzej Wysokinski
Summary: The research aimed to determine the nitrogen fixation and uptake by soybean at different densities under central European conditions. Results showed varying proportions of nitrogen uptake from the atmosphere, soil reserves, and mineral fertilizer, with residues and roots contributing nitrogen from all sources.
Article
Environmental Sciences
Liqun Xiu, Weiming Zhang, Di Wu, Yuanyuan Sun, Honggui Zhang, Wenqi Gu, Yuning Wang, Jun Meng, Wenfu Chen
Summary: The study found that biochar can improve the properties of Albic soil and promote soybean growth, with increases in nitrogen contents of the soil and soybeans being key aspects. Biochar may enhance soybean biological nitrogen fixation by affecting soybean root growth, leading to increased crop yield.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Yuxiao Zhang, Qing Xu, Gejiao Wang, Kaixiang Shi
Summary: This study found that non-nodulating microbes positively affected rhizobium nodulation in soybeans. By increasing the levels of flavonoids, indoleacetic acid (IAA), salicylic acid (SA), and taurine in the rhizosphere soil, the non-nodulating microbes enhanced nitrogenase activity, nodule production, and chlorophyll content in soybeans, thus promoting nitrogen fixation.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Mingshu Li, Peng Zhang, Zhiling Guo, Weidong Cao, Li Gao, Yuanbo Li, Chang Fu Tian, Qing Chen, Yunze Shen, Fazheng Ren, Yukui Rui, Jason C. White, Iseult Lynch
Summary: A single application of low-dose molybdenum disulfide nanoparticles (MoS2 NPs) can enhance soybean biological nitrogen fixation (BNF) and yield by 30%, compared to conventional molybdate fertilizer. MoS2 NPs can sustainably release molybdenum and enhance plant tolerance to abiotic stresses.
Article
Biology
Pepijn Beekman, Agustin Enciso-Martinez, Sidharam P. Pujari, Leon W. M. M. Terstappen, Han Zuilhof, Severine Le Gac, Cees Otto
Summary: The study found that organosilicon compounds may interact with cell membranes passively and be adsorbed in or on the cell membrane; these compounds are commonly present in everyday items and widely used in food, cosmetics, and pharmaceuticals; with the increasing application of organosilicon compounds as replacements for other plastics, there is a need for a deeper understanding of these interactions.
COMMUNICATIONS BIOLOGY
(2021)
Article
Agronomy
Zongming Sui, Ling Yuan
Summary: The white-rot fungus Ceriporia lacerata HG2011 was found to promote soybean biological nitrogen fixation (BNF) and increase soybean yield and soil fertility. It achieved this by releasing phytohormones and improving mineral nutrition, which enhanced rhizobial chemotaxis and soybean nodulation and BNF. In greenhouse and field experiments, this fungal inoculant significantly increased soybean yield and showed great potential for legume cultivation.
Article
Agronomy
Lina B. Bosaz, Lucas Borras, Jose A. Gerde, Gabriel Santachiara, Jose L. Rotundo
Summary: Soybean seed protein concentration has been declining in recent decades, requiring further management refinement to maintain levels above market standards. Late N fertilization can impact seed protein, but N fertilization in soil can inhibit biological nitrogen fixation.
Review
Agronomy
Jagdish K. Ladha, Mark B. Peoples, Pallavolu M. Reddy, Jatish C. Biswas, Alan Bennett, Mangi L. Jat, Timothy J. Krupnik
Summary: This review examines the importance of biological nitrogen fixation in crop production and the contribution of nitrogen sources on a global scale. Strategies to enhance the efficiency of biological nitrogen fixation are discussed, along with the challenges and potential of introducing biological nitrogen fixation into conventional and alternative crop management systems.
FIELD CROPS RESEARCH
(2022)
Article
Soil Science
Fuyuan Duan, Peng Peng, Kepan Yang, Yinghua Shu, Jianwu Wang
Summary: The study investigated the effects of crop straw mixture return on soil biological nitrogen fixation (BNF) and N-cycling microbial communities. The results showed that straw mixture return significantly increased soil BNF and the relative abundances of microbial communities carrying functional genes related to N-cycling. The increase in soil BNF was associated with both N-fixing microbial communities and other N transformation microbial communities. Soil properties and N-cycling functional microbial communities explained a large proportion of the differences in BNF. These findings provide theoretical guidance for the sustainable development of agriculture.
APPLIED SOIL ECOLOGY
(2023)
Article
Soil Science
Apolline Benoist, Daniel Houle, Robert L. Bradley, Jean-Philippe Bellenger
Summary: The contribution of Coarse Woody Debris (CWD) to N inputs in boreal ecosystems has been reported, but data from Eastern Canadian forests is scarce. This study evaluated the contribution of CWD to total biological nitrogen fixation (BNF) in two forest sites and tested factors that can affect the conversion ratio for N-2-fixation estimates. The results showed that N-2-fixation by CWD in balsam fir and black spruce from eastern boreal forest is low compared to other estimates, and moss-covered CWD can significantly contribute to CWD N-2-fixation.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Rebecca S. Sherbo, Pamela A. Silver, Daniel G. Nocera
Summary: Microbes can offer a more sustainable and energy-efficient option for food and nutrient production compared to plants and animals, but it requires intensive energy inputs. Researchers have discovered that hydrogen-oxidizing carbon and nitrogen-fixing microorganisms can overproduce vitamin B2 using a mixture of gases. This method has shown promising results in maintaining high production of vitamin B2 under hybrid inorganic-biological conditions.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biochemistry & Molecular Biology
Xiaochen Lyu, Chunyan Sun, Jin Zhang, Chang Wang, Shuhong Zhao, Chunmei Ma, Sha Li, Hongyu Li, Zhenping Gong, Chao Yan
Summary: The specific mechanisms by which nitrogen affects nodulation and nitrogen fixation in leguminous crops are still unclear. This study investigates the effects of exogenous nitrogen on proteins and metabolites in soybean root nodules. The findings reveal that exogenous nitrogen regulates multiple metabolic pathways, promotes the synthesis of signaling molecules, and inhibits energy supply for nitrogen fixation, leading to reduced root nodule growth and nitrogen fixation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Shaojing Yin, Fengyue Suo, Qingxian Kong, Xiangwei You, Xin Zhang, Yuan Yuan, Xueyang Yu, Yadong Cheng, Ruixue Sun, Hao Zheng, Chengsheng Zhang, Yiqiang Li
Summary: The study found that the moderate use of wood waste biochar can significantly increase the biomass and plant height of wild soybeans, improve photosynthesis and biological nitrogen fixation, enhance soil properties, promote bacterial community shift, and favor the growth of wild soybeans.
Review
Geosciences, Multidisciplinary
Tianya Yin, Maoyuan Feng, Chunjing Qiu, Shushi Peng
Summary: Peatlands cover 3% of the Earth's surface and are important for storing carbon. The sources of nitrogen supporting peatland formation are unclear. Global peatlands store 5.9-25.9 Gt N, with northern peatlands accumulating nitrogen at a lower rate than tropical undisturbed peatlands over the past millennia.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Agronomy
Luiz H. Moro Rosso, Santiago Tamagno, Anelise L. da Silva, Adalgisa R. Torres, Rai A. Schwalbert, Ignacio A. Ciampitti
Summary: The study found that the base of the stem in soybean plants is a reliable fraction for quantifying ureide abundance, while the ureide content in upper leaflets is poorly correlated with values in the main stem. Additionally, the RAU trends in the upper petiole are similar to those in the base of the stem, but do not provide reliable RAU estimates.
EUROPEAN JOURNAL OF AGRONOMY
(2021)
