Results 1 to 10 of about 417,330 (328)
Spectroscopic characterization of humic and fulvic acids in soil aggregates, Brazil. [PDF]
Heliyon, 2020 Agricultural management methods affect organic compounds in the soil. The aim of this study was to characterize humic and fulvic acids using infrared spectroscopy and nuclear magnetic resonance (NMR) in aggregates collected from areas under different ...
Machado W +3 more
europepmc +2 more sources
Effects of disk tillage on soil condition, crop yield and weed infestation
Plant, Soil and Environment, 2002 This research was instigated by the fact that during the last decade annually repeated shallow disk tillage on the same field became frequent practice in Hungary.
M. Birkás +4 more
doaj +2 more sources
Новые технологии, 2021 The research was out on low-humus heavy-duty heavy-clay merged leached chernozems in 2017–2020 in the Republic of Adygea, in the soybeans – winter wheat link of crop rotation.
N. I. Devterova
doaj +1 more source
Galaxy disks and disk galaxies [PDF]
Publications of the Astronomical Society of the Pacific, 2000 Abstract not available.
FUNES J. G., CORSINI, ENRICO MARIA
+5 more sources
Two Disk Components from a Gas‐Rich Disk‐Disk Merger [PDF]
The Astrophysical Journal, 2007 We employ N-body, smoothed particle hydrodynamic simulations, including detailed treatment of chemical enrichment, to follow a gas-rich merger that results in a galaxy with disk morphology. We trace the kinematic, structural, and chemical properties of stars formed before, during, and after the merger.
Brook, Chris B. +4 more
openaire +3 more sources
EFFICIENCY OF CROP ROTATIONS IN THE LOWER VOLGA CONDITIONS
Siberian Journal of Life Sciences and Agriculture, 2021 Background. In the dry-thermal zone of the Lower Volga region, one of the factors of increasing the productivity of Pashnya is organic fertilizer. The effectiveness of the introduction into the soil of siderates, straw and leaf-weighting mass of field ...
Elena V. Seminchenko
doaj +1 more source
Почвознание, агрохимия и екология, 2023 Sunflower (Helianthus annuus – hybrid “Linzi”) yield obtained under different main soil tillage systems in 4-field crop rotation (common bean-wheat-sunflower-grain maize), is strongly influenced by the properties of the slightly leached chernozems the ...
Nina Nenova, Margarita Nankova
doaj +1 more source
Новые технологии, 2023 In agrotechnologies postcut crops of intermediate cultures are placed after harvesting annual grasses for green mass, and stubble crops after harvesting early grain crops. Annual herbs at the April sowing dates reach mowing maturity and are harvested for
A. Y. Kishev +3 more
doaj +1 more source
Proceedings of VII Microquasar Workshop: Microquasars and Beyond — PoS(MQW7), 2009 We investigate the phenomenon of circumbinary disks: their stability and potentially insightful use as diagnostic tools of outflows. Our fully 3D simulations investigate the behaviour of circumbinary orbits, exploring binary mass fraction - eccentricity parameter space.
Doolin, S, Blundell, K
openaire +2 more sources
Influence of manure application method on gray forest soil fertility, crop yield and quality
RUDN Journal of Agronomy and Animal Industries, 2021 The article presents the results of field experiments on deepening the arable horizon of gray forest medium loamy soil to increase its fertility through applying organic fertilizer under PY-3-35 layer plow to a depth of 2527 cm.
Ivan Grigoryevich Meltsaev +1 more
doaj +1 more source