Results 21 to 30 of about 277,937 (204)

An alternative method to measure electrical conductivity (EC) and sodium adsorption ratio (SAR) in salt-affected soil extracts

Frontiers in Environmental Science, 2023
Soil degradation due to salts affects over 100 countries, especially in arid and semi-arid regions where salts migrate to the plant root zone via capillary action when evapotranspiration exceeds rainfall.
Beverly Álvarez Torres, David R. Sotomayor Ramírez, José Pablo Castro Chacón, Gustavo Martínez Rodríguez, Luis R. Pérez Alegría, Thomas M. DeSutter   +5 more
doaj   +1 more source

Short-term impact of mechanical loosening on physical soil properties in a severely compacted subsoil

Geoderma
Subsoil compaction is a serious threat to the fertility of our urban and agricultural lands. In severe cases it impedes aeration of and water infiltration into the subsoil, increasing risks of water-logging and overland run-off with erosion.
Alina Widmer, Alice Johannes, Mario Fontana, Marlies Sommer, Saïd Elfouki, Luca Bragazza, John Koestel   +6 more
doaj   +1 more source

Combined application of calcium fertilizer improves the immobilization of biochar-ferromanganese materials on cd/as co-polluted paddy soils under acidifying conditions

Scientific Reports
Soil acidification is an increasingly serious issue in southern China. A decrease in soil pH tends to interfere with the immobilization of heavy metals by amendments.
Jie Wang, Qi Sun, Maoyu Wang, Jiahao Wang, Yuxiang Yang, Jizi Wu, Keli Zhao   +6 more
doaj   +1 more source

Interaction of fulvic acid with soil organo-mineral nano-aggregates and corresponding phosphate release

Geoderma
For more insight into the interaction of natural organic matter (NOM) with metal (hydr)oxides and oxyanions, the adsorption of added fulvic acid (FA) and the corresponding release of phosphate (PO4) were studied for a series of agricultural soils (∼0 ...
Yilina Bai, Liping Weng, Tjisse Hiemstra
doaj   +1 more source

Biochar reduces early-stage mineralization rates of plant residues more in coarse-textured soils than in fine-textured soils – an artificial-soil approach [PDF]

SOIL
Quantifying the impact of biochar on carbon persistence across soil textures is complex, owing to the variability in soil conditions. Using artificial soils with precise textural and mineral compositions, we can disentangle the effects of biochar from ...
T. M. Inagaki, S. Weldon, F. B. Bucka, F. B. Bucka, E. Farkas, D. P. Rasse   +5 more
doaj   +1 more source

Effect of Soil Acidification on Temperature Sensitivity of Soil Respiration

Agronomy
Soil pH significantly impacts microbial activity and community assembly, which in turn determines the temperature sensitivity (Q10) of soil respiration.
Lin Jin, Keke Hua, Linchuan Zhan, Chuanlong He, Daozhong Wang, Hirohiko Nagano, Weiguo Cheng, Kazuyuki Inubushi, Zhibin Guo   +8 more
doaj   +1 more source

Phosphate Uptake from Phytate Due to Hyphae-Mediated Phytase Activity by Arbuscular Mycorrhizal Maize

Frontiers in Plant Science, 2017
Phytate is the most abundant form of soil organic phosphorus (P). Increased P nutrition of arbuscular mycorrhizal plants derived from phytate has been repeatedly reported.
Gu Feng, Xin-Xin Wang, Xin-Xin Wang, Ellis Hoffland, Thomas W. Kuyper   +4 more
doaj   +1 more source

Biochar-based organic substrates enhance tomato growth by promoting specific microbial communities in rooftop farming

Environmental Microbiome
Background Urban agriculture represents an opportunity to alleviate some of the issues related with the increased urbanization and global human population.
Miguel de Celis, Laura L. de Sosa, Giuseppe Picca, Noelia González-Polo, Cristina Gómez Ruano, Luciano Beneduce, Claudio Zaccone, Marco Panettieri   +7 more
doaj   +1 more source

New Bufadienolides Isolated from the Roots of Kalanchoe daigremontiana (Crassulaceae)

Molecules, 2016
An aqueous extract from the roots of Kalanchoe daigremontiana turned out to be a rich source of bufadienolides. The existing literature data relate mainly to the aerial parts of Kalanchoe but there is no information about the metabolic profile of the ...
Barbara Moniuszko-Szajwaj, Łukasz Pecio, Mariusz Kowalczyk, Anna Stochmal   +3 more
doaj   +1 more source

Short communication. Growth and nodulation of cowpea after 5 years of consecutive composted tannery sludge amendment

Spanish Journal of Agricultural Research, 2014
Tannery industry releases high amounts of tannery sludge which are currently composted and used in agricultural soils. The consecutive amendment of such composted tannery sludge (CTS) may affect soil microrganisms, such as rhizobia.
Ana R. L. Miranda, Luis A. P. L. Nunes, Mara L. J. Oliveira, Wanderley J. Melo, Ademir S. F. Araujo   +4 more
doaj   +1 more source