Article
Environmental Studies
Chumki Banik, Jacek A. Koziel, Darcy Bonds, Asheesh K. Singh, Mark A. Licht
Summary: The use of biochar to treat swine manure can increase soil organic matter content without impacting soil pH and total nitrogen. There was no significant difference in plant biomass nutrient concentrations, but the application of manure-biochar significantly diluted soil copper and zinc concentrations.
Article
Agronomy
Abigail E. Baxter, April B. Leytem, Robert S. Dungan, David Bjorneberg
Summary: This study investigated the combined effect of winter double crops and tillage on nutrient uptake, yield, and forage quality, and found that winter double crops can increase forage production and enhance nutrient utilization.
Article
Environmental Sciences
Xiu Liu, Wenyi Dong, Shaohui Jia, Qian Liu, Yuzhong Li, Md Elias Hossain, Enke Liu, Yakov Kuzyakov
Summary: Understanding the nitrogen transformations in soil with different tillage practices is crucial for efficient nitrogen use and environmental protection. This study found that application of wheat straw significantly increased organic nitrogen content in soil and promoted fast nitrogen mineralization. Under long-term no-tillage conditions, the straw N remained mainly in the particulate organic matter nitrogen pool, providing a theoretical basis for improving straw N use efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agronomy
Gaston A. Iocoli, Luciano Orden, Fernando M. Lopez, Marisa A. Gomez, Maria B. Villamil, Maria C. Zabaloy
Summary: Mineralization studies on different types of dairy manure amendments showed varying effects on C, N, and P mineralization, leading to differences in nutrient availability and CO2 emission. Digestates resulted in net C immobilization and provided high levels of available N, while compost supplied N and P through mineralization. Future studies may focus on combining these two types of amendments to utilize their complementary agronomic characteristics.
Article
Biotechnology & Applied Microbiology
Priyanka Kushwaha, Julia W. Neilson, Albert Barberan, Yongjian Chen, Catherine G. Fontana, Bradley J. Butterfield, Raina M. Maier
Summary: The study compared microenvironments and geographic locations in arid-hyperarid regions of the western Sonoran Desert in Arizona, United States, and found that gap soils have significantly lower nutrients, microbial richness, and N-mineralization capacity compared to canopy soils. The bacterial urease gene ureC abundance is strongly correlated with nitrogen availability, with a major phylogenetic association with Actinobacteria, a dominant phylum in deserts. This identifies an important indicator for nitrogen mineralization capacity in arid soil microbiomes.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Plant Sciences
Gustavo Ferreira da Silva, Juliano Carlos Calonego, Bruno Cesar Ottoboni Luperini, Vinicius Brasil Silveira, Larissa Chamma, Rogerio Peres Soratto, Fernando Ferrari Putti
Summary: Soil management systems can directly impact crop yield by altering the physical and hydraulic properties of the soil. Long-term experiments have shown that the no-tillage system improves soil density and compaction resistance, enhances root development, and increases soybean yield by 6.5%, without affecting water infiltration.
Article
Agricultural Engineering
Balasubramani Ravindran, Mukesh Kumar Awasthi, Natchimuthu Karmegam, Soon Woong Chang, Dhiraj Kumar Chaudhary, Ammaiyappan Selvam, Dinh Duc Nguyen, Ashequr Rahman Milon, Ganesh Munuswamy-Ramanujam
Summary: The addition of biochar has a positive impact on microbial activity and compost quality in the composting process. It improves the degradation rates, reduces emissions and pathogens. A 6% biochar amendment is recommended for obtaining mature compost.
BIORESOURCE TECHNOLOGY
(2022)
Article
Soil Science
Elizabeth L. Rieke, Shannon B. Cappellazzi, Michael Cope, Daniel Liptzin, G. Mac Bean, Kelsey L. H. Greub, Charlotte E. Norris, Paul W. Tracy, Ezra Aberle, Amanda Ashworth, Oscar Banuelos Tavarez, Andy Bary, R. L. Baumhardt, Alberto Borbon Gracia, Daniel C. Brainard, Jameson R. Brennan, Dolores Briones Reyes, Darren Bruhjell, Cameron N. Carlyle, James J. W. Crawford, Cody F. Creech, Steve W. Culman, Bill Deen, Curtis J. Dell, Justin D. Derner, Thomas F. Ducey, Sjoerd W. Duiker, Miles F. Dyck, Benjamin H. Ellert, Avelino Espinosa Solorio, Steven J. Fonte, Simon Fonteyne, Ann-Marie Fortuna, Jamie L. Foster, Lisa M. Fultz, Audrey Gamble, Charles M. Geddes, Deirdre Griffin-LaHue, John H. Grove, Stephen K. Hamilton, Xiying Hao, Zachary D. Hayden, Nora Honsdorf, Julie A. Howe, James A. Ippolito, Gregg A. Johnson, Mark A. Kautz, Newell R. Kitchen, Sandeep Kumar, Kirsten S. M. Kurtz, Francis J. Larney, Katie L. Lewis, Matt Liebman, Antonio Lopez Ramirez, Stephen Machado, Bijesh Maharjan, Miguel Angel Martinez Gamino, William E. May, Mitchel P. McClaran, Marshall D. McDaniel, Neville Millar, Jeffrey P. Mitchell, Amber D. Moore, Philip A. Moore, Manuel Mora Gutierrez, Kelly A. Nelson, Emmanuel C. Omondi, Shannon L. Osborne, Leodegario Osorio Alcala, Philip Owens, Eugenia M. Pena-Yewtukhiw, Hanna J. Poffenbarger, Brenda Ponce Lira, Jennifer R. Reeve, Timothy M. Reinbott, Mark S. Reiter, Edwin L. Ritchey, Kraig L. Roozeboom, Yichao Rui, Amir Sadeghpour, Upendra M. Sainju, Gregg R. Sanford, William F. Schillinger, Robert R. Schindelbeck, Meagan E. Schipanski, Alan J. Schlegel, Kate M. Scow, Lucretia A. Sherrod, Amy L. Shober, Sudeep S. Sidhu, Ernesto Solis Moya, Mervin St Luce, Jeffrey S. Strock, Andrew E. Suyker, Virginia R. Sykes, Haiying Tao, Alberto Trujillo Campos, Laura L. Van Eerd, Nele Verhulst, Tony J. Vyn, Yutao Wang, Dexter B. Watts, Bryan B. William, David L. Wright, Tiequan Zhang, Cristine L. S. Morgan, C. Wayne Honeycutt
Summary: This study assessed the impact of physical disturbance on soil microbial communities and the potential carbon mineralization (Cmin). The results showed that the type of cropping system, the intensity of physical disturbance, and soil pH can influence microbial sensitivity to physical disturbance. The enriched sequences under soils managed with minimal physical disturbance were associated with organisms capable of producing extracellular polymeric substances and adapting to environmental stressors.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Agronomy
Jahanbakhsh Mirzavand, Hadi Asadi-Rahmani, Reza Moradi-Talebbeigi
Summary: The experiment showed that reduced tillage can significantly improve soil enzymes and microbial biomass, optimizing CO2 metabolism rates.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2022)
Article
Environmental Sciences
Chongyang Li, Zhengyang Wang, Santanu Bakshi, Joseph J. Pignatello, Sanjai J. Parikh
Summary: The study found that immobilizing phytase onto biochar surfaces can enhance organic phosphate mineralization, with both physical adsorption and covalent grafting methods being effective. The carbon-to-hydrogen ratio in biochar is positively correlated with phytase loading, while an increase in pH leads to a decrease in phytase loading.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Alan J. Franzluebbers
Summary: Biologically active and intermediately labile fractions of soil organic matter play significant roles in conservation agricultural management systems. A study conducted in North Carolina examined the depth distribution of soil-test biological activity (STBA) and particulate organic carbon (C) and nitrogen (N) under different land uses. The results showed that STBA in the surface soil was mainly influenced by land use, soil texture, and physiographic region. Conservation land uses increased the root-zone enrichment of active and intermediately labile fractions, independent of soil types and regions.
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
(2023)
Article
Agronomy
Amanda K. Hodson, Jordan M. Sayre, Maria C. C. P. Lyra, Jorge L. Mazza Rodrigues
Summary: The study aimed to characterize the effects of dairy manure compost and food waste compost on soil nitrogen and carbon pools, bacterial and nematode soil food webs, and tree growth. The results showed that both composts increased soil organic matter pools, nitrate, and ammonium levels, as well as altered bacterial communities and increased populations of bacterial feeding nematodes. Food waste compost also promoted tree growth, mainly in the first year after application.
Article
Agronomy
Ali Akbar Maitlo, Shuiqing Zhang, Waqas Ahmed, Kamlesh Jangid, Sehrish Ali, Hongbo Yang, Saleem Maseeh Bhatti, Yinghua Duan, Minggang Xu
Summary: The study aimed to explore the effect of long-term fertilization on soil organic nitrogen mineralization potential and its impact on plant nitrogen accessibility. The results showed that long-term fertilization can increase the nitrogen mineralization rate in soil, suggesting that fertilization is an effective strategy to enhance soil nitrogen availability.
Article
Agronomy
Xing Wang, Cong He, Bai-Jian Lin, Xin Zhao, Ran Zhang, Ling-Tao Zhong, Xiao-Ping Xiao, Hai-Lin Zhang
Summary: Periodic targeted tillage can improve soil management problems such as soil stratification and reduced yield. This method can enhance soil physicochemical properties, increase nutrient availability, and decrease soil acidification. In double-cropped rice systems in southern China, periodic targeted tillage is a more sustainable method compared to continuous no-tillage and ploughing tillage, as it can improve yield and increase the seed setting rate.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Soil Science
P. M. Schleuss, M. Widdig, L. A. Biederman, E. T. Borer, M. J. Crawley, K. P. Kirkman, E. W. Seabloom, P. D. Wragg, M. Spohn
Summary: The addition of nitrogen and phosphorus changes the C:N ratio of dissolved organic matter, but not of soil microbial biomass. Nitrogen addition decreases non-symbiotic N-2 fixation and increases microbial N release, while phosphorus addition has minimal effects. Changes in substrate stoichiometry drive alterations in microbial N acquisition and release in grassland ecosystems.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
