Results 61 to 70 of about 4,188 (168)

Soil Characterization and Classification in Granite‐Dominated Rock Formations of Beles Watershed in Tigray, Northern Ethiopia

Applied and Environmental Soil Science, Volume 2025, Issue 1, 2025.
The study was conducted in the Beles Watershed, northwestern Tigray (northern Ethiopia), to characterize and classify soils using the pedologic approach at a 1:25,000 map scale. Thirteen representative soil profiles were described, and 30 disturbed and 30 undisturbed soil samples were collected for physical and chemical analyses.
Gebresemaeti Kahsu, Kassa Teka, Amanuel Zenebe, Venkatramanan Senapathi   +3 more
wiley   +1 more source

Matching population diversity of rhizobial nodA and legume NFR5 genes in plant–microbe symbiosis

Ecology and Evolution, Volume 9, Issue 18, Page 10377-10386, September 2019., 2019
Interactions between coevolving organisms are described by several theoretical models (e.g., Red Queen, Red King, etc.); however, the underlying factor that causes the implementation of different models is still unclear. This problem is of large importance for understanding co‐evolutionary processes.
Anna A. Igolkina, Georgii A. Bazykin, Elena P. Chizhevskaya, Nikolai A. Provorov, Evgeny E. Andronov   +4 more
wiley   +1 more source

Expanding from local to continental scale—A genetic assessment of the Eurasian wolverine

Diversity and Distributions, Volume 30, Issue 7, July 2024.
Abstract Aim Our aim was to assess the population structure, genetic diversity and demographic history of the wolverine (Gulo gulo) throughout its entire Eurasian range. Additionally, we aimed to contextualize and put into perspective the state of the endangered Fennoscandian population by emphasizing its connectivity to other populations. Location The
Dominika Bujnáková, Gerhardus M. J. Lansink, Alexei V. Abramov, Tatiana Bulyonkova, Nikolai E. Dokuchaev, Trofim Domanov, Mikhail G. Dvornikov, Alexander Graphodatsky, Ekaterina Karabanina, Sergei Kliver, Andrey N. Korolev, Vladimir V. Kozhechkin, Yuri N. Litvinov, Nikolay Mamaev, Vladimir G. Monakhov, Olga Nanova, Innokentiy Okhlopkov, Alexander P. Saveljev, Anton Schinov, Elena Shiriaeva, Mikhail Sidorov, Konstantin F. Tirronen, Evgenii S. Zakharov, Nadezhda N. Zakharova, Jouni Aspi, Laura Kvist   +25 more
wiley   +1 more source

SOIL-AGROMELIORATIVE REGIONALIZATION AS AN INFORMATION BASE FOR THE SOIL COVER INVENTORY OF AGRICULTURAL LANDS IN RUSSIA

Бюллетень Почвенного института им. В.В. Докучаева, 2014
Under consideration is a regionalization version corrected with the aim to renew taxons, to give a new interpretation of farming systems and to specify the qualitative and quantitative characteristics of the soil cover in agricultural areas.
D. S. Bulgakov, V. A. Rozhkov, I. I. Karmanov   +2 more
doaj   +1 more source

Weighing of the Dark Matter at the Center of the Galaxy

, 2015
A promising method for measuring the total mass of the dark matter near a supermassive black hole at the center of the Galaxy based on observations of nonrelativistic precession of the orbits of fast S0 stars together with constraints on the annihilation
Dokuchaev, V. I., Eroshenko, Yu. N.
core   +1 more source

Backreaction of accreting matter onto a black hole in the Eddington-Finkelstein coordinates

, 2012
We study backreaction of accreting matter onto a spherically symmetric black hole in a perturbative way, when accretion is in a quasi-steady state. General expressions for corrections to the metric coefficients are found in the Eddington-Finkelstein ...
Babichev, E., Dokuchaev, V., Eroshenko, Yu.   +2 more
core   +2 more sources

Main foundations of the afforestation strategy in Ukraine

Наукові праці Лісівничої академії наук України, 2019
Afforestation is a significant component of the state strategy of environment conservation, rational use and increasing Ukraine's natural resource potential, solving problems of its ecological and food security.
Mykola Vedmid, Iurii Debryniuk, Vasyl Yukhnovskyi, Svitlana Raspopina, Yuliia Bila   +4 more
doaj   +1 more source

Influence of root dressings on the yield of tomato hybrid in spring film greenhouses

Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Гжицького. Серія: Сільськогосподарські науки, 2020
Vegetable production by way of protected cultivation is currently developing in Ukraine as a dynamic and effective branch of agriculture. This is extremely important for providing the population with vegetables rich in vitamins and minerals, although the
H. І. Yarovyi, I. V. Sievidov, V. P. Sievidov   +2 more
doaj   +1 more source

Effect of a biological product with iron nanoparticles on the activity of soil enzymes and potato yields

Аграрная наука Евро-Северо-Востока, 2023
The paper presents data on a three-year study (2020-2022) of the effect of a liquid-phase biological product containing iron nanoparticles (LPB-Fe), obtained by biosynthesis using green tea extract, on the yield of potatoes of the Skarb variety and the ...
N. A. Lyubimova, G. Yu. Rabinovich
doaj   +1 more source

Forecast of yield and placement of winter rye crops on lands recommended for development

Аграрная наука Евро-Северо-Востока
The paper presents a forecast of the winter rye yield on a farm of Tver region based on monitoring results and archival data. Long-term (1997–2022) monitoring of the yield of ‘Dymka’ winter rye cultivar and soil properties was conducted at the Gubino ...
D. A. Ivanov, M. V. Rublyuk, N. A. Kharkhardinov   +2 more
doaj   +1 more source