174 results for group: agrogeology-2

Calcium-rich parent materials enhance multiple soil functions and bacterial network complexity

Peilei Hu, Wei Zhang, Wolfgang Wanek, Ji Chen, Diego Abalos, Jie Zhao, Dan Xiao, Xinyu Hou, Juan Li, Hongsong Chen, Jun Xiao, Xionghui Liao, Tiangang Tang, Hanqing Wu, Kelin Wang ABSTRACT: Parent material shapes soil properties, yet its effects on soil functions and microbial networks remain unclear. Here we investigate these relationships using a large-scale field survey comparing soils derived from calcium-rich carbonate rocks and calcium-poor clastic rocks, complemented by a microcosm experiment. Soils from calcium-rich parent materials contained 33% higher organic carbon, 58% higher total nitrogen, and 55% higher total phosphorus than calcium-...

Valorization of mineral by-products through soil remineralization enhances sustainable agriculture and circular economy outcomes

Hugo Hernández Palma, Anderson Isaías Nieto Granados, Alcindo Neckel, Diana Pinto Osorio, Andrea Liliana Moreno Ríos, Claudete Gindri Ramos ABSTRACT: Soil remineralization using rock powders derived from mining and industrial by-products has gained attention as a sustainable strategy to restore degraded soils, improve fertility, and reduce reliance on synthetic fertilizers. These materials, rich in nutrients and beneficial minerals, also offer potential for carbon sequestration and contribute to circular economy practices by repurpose byproducts into agricultural inputs. This review aims to critically synthesize the current state of research on ...

Optimizing nutrient stoichiometry for enhanced carbon sequestration in agricultural soils

Munazza Yousra, Qaiser Hussain, Khalid Saifullah Khan, Sair Sarwar, Muhammad Mahmood-ul-Hassan ABSTRACT: Nutrients like nitrogen (N), phosphorus (P), and sulphur (S) play a critical role in plant and microbial growth, as well as in stabilizing soil organic carbon (SOC). Humus, the most stable fraction of soil organic matter (SOM), maintains a consistent elemental ratio of C:N:P:S at 10,000:833:200:143. To evaluate how variations in this humus based C:N:P:S ratio affect SOC stabilization, a six-month laboratory incubation was conducted using selected benchmark soil series. The soils were amended with wheat straw (WS) and maize straw (MS), both with ...

Divergent responses of carbon and nitrogen functional genes composition to enhanced rock weathering

Qiong Chen, Daniel S. Goll, Mardin Abdalqadir, Xinjian He, Guochen Li, Boyuan Bi, Tongtong Xu, Chenlu Li, Yanlong Chen, Xiulian Ma, Zhenxin Li, Yunting Fang, Zhanqing Hao & Zuoqiang Yuan ABSTRACT: Enhanced rock weathering (ERW) is a scalable strategy for atmospheric carbon dioxide removal. The microbiome function critically regulates the below-ground cycle of carbon and nitrogen in terrestrial ecosystems. However, microbial functioning related to carbon and nitrogen under ERW remains elusive. Here we investigated how wollastonite addition affects key microbial carbon and nitrogen-cycles genes investigated using metagenomic, in a tropic rubber ...

Impact of Basalt Rock Powder on Ryegrass Growth and Nutrition on Sandy and Loamy Acid Soils

Charles Desmalles, Lionel Jordan-Meille, Javier Hernandez, Cathy L. Thomas, Sarah Dunham, Feifei Deng, Steve P. McGrath and Stephan M. Haefele ABSTRACT: Enhanced weathering of silicate rocks in agriculture is an option for atmospheric CO2 removal and fertility improvement. The objective of our work is to characterise some of the agricultural consequences of a basaltic powder amendment on soil-crop systems. Two doses of basalt (80 and 160 t ha−1) were applied to two types of slightly acid soils (sandy or silty clayey), derived from long-term trials at Bordeaux (INRAE, France) and Rothamsted Research (England), respectively. For each soil, half of ...

Pyrogenic carbon and Carbonating Minerals for Carbon Capture and Storage (PyMiCCS) Part II: Organic and Inorganic Carbon Dioxide Removal in an Oxisol

Maria-Elena Vorrath, Thorben Amann, Johannes Meyer zu Drewer, Nikolas Hagemann, Cierra Aldrich, Janine Börker, Maria Seedtke, Joscha N. Becker, Mathilde Hagens, Annette Eschenbach, Jens Hartmann ABSTRACT: Enhanced rock weathering (ERW) and pyrogenic carbon capture and storage (PyCCS, or "biochar carbon removal") are two promising carbon dioxide removal (CDR) techniques that can contribute to soil restoration. These technologies can be combined by co-application of rock powder and biochar or by co-pyrolysis of rock powder with biomass to produce rock-enhanced (RE) biochar. In a 27-week laboratory experiment, we quantified the carbon (C) sink ...

Preliminary assessment of crushed rock, compost, and biochar amendments on soil physical properties

Sarah A. Costanzo, Iris O. Holzer, Nall I. Moonilall, Amber Davenport, Benjamin Z. Houlton, Mallika A. Nocco ABSTRACT: Innovative carbon dioxide removal strategies using soil amendments like crushed silicate rock may alter soil structure and function by inducing changes in soil mineralogy. We hypothesized that crushed silicate rock would improve soil physical properties. This study investigated how stand-alone and combined application of crushed metabasalt and olivine rock (40.3 and 26.9 Mg ha−1), compost (9 Mg ha−1), and biochar (10 Mg ha−1) influenced soil physical health over a 2-year drought period in a Northern California corn (Zea ...

Basalt rock dust as a soil remineralizer in upland rice grown in tropical soils: residual effects on soil fertility, Si availability, and leaf anatomy

Mariana de Carvalho Ribeiro, Aline Redondo Martins, Rodrigo Silva Alves, Luís Gustavo Frediani Lessa, Hamilton Seron Pereira, Fernando Shintate Galindo, Marcelo Carvalho Minhoto Teixeira Filho, Cassio Hamilton Abreu–Junior, Arun Dilipkumar Jani, Gian Franco Capra, Antonio Ganga, Thiago Assis Rodrigues Nogueira ABSTRACT: Silicate agrominerals (SA) applied as soil remineralizers have garnered interest due to their capacity to supply plant–available nutrients while decreasing reliance on conventional mineral fertilizers (CMF). This research evaluated the residual effects of basalt rock dust (BRD), examining its role as a soil remineralizer and ...

Enhancement of Biochar Carbon Sequestration Through Mineral Regulation: Effects and Mechanisms

Fan Yang, Pengxiao Gao, Lin Chi, Zhongyu Gao, Yajun Wang, Liu Luo, Bo Liu, Xinyue Liu, Jingke Sima ABSTRACT: The conversion of waste biomass into biochar through inert pyrolysis represents a promising strategy for carbon sequestration. However, biochar production is often accompanied by the release of small molecular chemical substances during pyrolysis, and the resulting biochar is susceptible to environmental degradation. To enhance the carbon retention rate of biochar during pyrolysis and its stability in the environment, this study explored the incorporation of various metal soluble salts (CaCl2, Ca(H2PO4)2, MgCl2, FeCl3) and clay minerals ...

Long-term trends of streamwater chemistry in an agricultural watershed: Effects of anthropogenic and climatic factors

Fengchao Sun, Rob A. Rioux, William A. Miller-Brown, Bibek Shrestha, James B. Shanley, Noah J. Planavsky, Peter A. Raymond, James E. Saiers ABSTRACT: The chemistry of headwater streams is a key indicator of the health of riparian zones and surrounding terrestrial ecosystems. This chemistry is shaped by biogeochemical processes, including chemical weathering, and anthropogenic activities that interact with one another and are sensitive to climate. Elucidating trends in streamwater chemistry and the drivers that underpin them is essential for informing land-management decisions and anticipating water-quality issues that may affect downstream ...