Results 11 to 20 of about 3,611 (260)
Agronomy, 2017 Round-bale silage harvesting and processing methods were assessed to evaluate overwintering ability and dry matter (DM) yield, fermentation quality and palatability of overwintered dwarf Napiergrass (Pennisetum purpureum Schumach) in the two years ...
Satoru Fukagawa +2 more
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Annual cycle and migration strategies of a trans-Saharan migratory songbird: a geolocator study in the great reed warbler. [PDF]
PLoS ONE, 2013 Recent technological advancements now allow us to obtain geographical position data for a wide range of animal movements. Here we used light-level geolocators to study the annual migration cycle in great reed warblers (Acrocephalus arundinaceus), a ...
Hilger W Lemke +6 more
doaj +1 more source
THE STUDY OF A COMBINATIVE ABILITY OF WINTER WHEAT (REVIEW)
Grain Economy of Russia, 2018 The study of a combinative ability of winter wheat (review) The paper presents a survey of the researches carried out to study the combinational ability of wheat by both domestic and foreign scientists. K.M. Gabdullin revealed that by estimating the combinational ability, it is possible to determine the value of the initial material, which differs in ...
О.А. Nekrasova, E.I. Nekrasov
openaire +2 more sources
An observation study on the effects of queen age on some characteristics of honey bee colonies
Italian Journal of Animal Science, 2010 This study was conducted to determine the effects of the queen’s age on performance of the honeybee (A. mellifera anatoliaca) colonies at nomad beekeeping conditions.
Ibrahim Çakmak +3 more
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Wintering habitat model for the North Atlantic Right Whale (Eubalaena glacialis) in the southeastern United States. [PDF]
PLoS ONE, 2014 The coastal waters off the southeastern United States (SEUS) are a primary wintering ground for the endangered North Atlantic right whale (Eubalaena glacialis), used by calving females along with other adult and juvenile whales.
Timothy A Gowan, Joel G Ortega-Ortiz
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Journal of Field Ornithology, 2023 The limited understanding of spatial and temporal patterns across the full annual cycle of long-distance migrants remains a crucial gap in the ability to describe their life history and inform conservation efforts.
Fred C. Schaffner +4 more
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The Impact of Technologies on the Production Ability of Winter Wheat in the South of Russia
IOP Conference Series: Earth and Environmental Science, 2021 Abstract Food security is one of the main conditions for the stable development of society and the country as a whole. The main food crop in the South of Russia is winter wheat. The aim of the research was to study the influence of the system without tillage and the traditional technology of cultivating crop on the production ability of ...
E V Pismennaya +2 more
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Siliao yanjiu, 2023 The experiment was to study the nutritional quality and production performance of alfalfa with different autumn dormancy grades in Shihezi area, to obtain excellent dormancy alfalfa varieties suitable for local planting.
QI Jiang-jiao +4 more
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Red-crowned crane (Grus japonensis) prefers postharvest reed beds during winter period in Yancheng National Nature Reserve [PDF]
PeerJ, 2019 Reed beds represent an important habitat for the survival of birds by providing favorable foraging and reproduction conditions. Reed management, as a traditional agricultural activity, primarily includes water level control and vegetation removal by ...
Peng Xu +4 more
doaj +2 more sources
Establishing Winter Origins of Migrating Lesser Snow Geese Using Stable Isotopes
Avian Conservation and Ecology, 2012 Increases in Snow Goose (Chen caerulescens) populations and large-scale habitat changes in North America have contributed to the concentration of migratory waterfowl on fewer wetlands, reducing resource availability, and enhancing risks of disease ...
Viviane Hénaux +3 more
doaj +1 more source