A heteroskedastic model of park grass spring hay yields in response to weather suggests continuing yield decline with climate change in future decades [PDF]
, 2022 UK grasslands perform important environmental and economic functions, but their future productivity under climate change is uncertain. Spring hay yields from 1902 to 2016 at one site (the Park Grass Long Term Experiment) in southern England under four ...
Addy, John W. G. +11 more
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Yield evaluation of varieties from the world collection of birdsfoot trefoil (Lotus corniculatus L.)
Plant, Soil and Environment, 2002 In field trials in 1998-2000, ten varieties of the world collection of birdsfoot trefoil (Lotus corniculatus) were evaluated for herbage and hay yields. In all the years of testing yields from three cuttings and total annual production were evaluated. In
J. Pelikán
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Comparative analysis of alfalfa cultivation with and without herbicide use to gain insights into the potential for sustainable system development [PDF]
Acta Agriculturae SerbicaA major problem when establishing alfalfa crops can be the presence of weeds. In intensive systems, weeds are controlled with herbicides, which inevitably contaminate water, soil, air, and food.
Tomić Dalibor +7 more
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The effect of mineral fertilizers on the yield and quality of hay of leguminous grasses
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The article presents the results obtained in the stationary experiment of the Novozybkovskaya SHOS. In the experiment, single-species crops of yellow alfalfa, boneless stalk and grass mixtures based on them were studied against the background of various doses of potash fertilizers (K120-180).
D M Sitnov, L P Harkevich, V N Adamko
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Research on harvesting technology of alfalfa hay in Liaoning region
Siliao yanjiu, 2023 The experiment was to screening out the optimum hay harvest conditions of alfalf in Liaoning. Kangsai alfalfa was used as the experimental material in the experiment, the influence of different cutting periods, cutting times and stubble heights on yield,
WANG Kun-long +6 more
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Effects of Different Harvesting Times on Yield and Quality of Oat and Triticale
Acta Natura et Scientia, 2022 This research was carried out to investigate the yield and quality of the hay of oat and triticale harvested at different timings in the growing seasons of 2018-2019 and 2019-2020 at the Research and Application Field of Çanakkale Onsekiz Mart ...
Keziban Kılınç, Ahmet Gökkuş
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Modelling Heteroskedasticity, Overdispersion and the Impacts of Climate Change for Long-Term Hay Yield Data [PDF]
, 2022 Non-constant residuals, also known as heteroskedastic errors, are a common challenge in statistical modelling. One common method for coping with heteroskedastic errors for non-negative data is through the use of a Gamma likelihood function, often with ...
Semenov, M. A. +4 more
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Journal of Agricultural Sciences, 2006 The study was carried out to investigate the effects of different row spaces 15, 30, 45, 60 and 75 cm and seeding rates 40, 80, 120, 160 and 200 kg ha-1 on the hay and crude protein yields of sainfoin at the Agricultural Research and Experiment ...
Necmettin Çelik, Mevlüt Türk
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Feed productivity of sowed grasslands depending on the composition of grass mixtures and fertilizers
Передгірне та гірське землеробство і тваринництво, 2021 The development of animal husbandry depends on the quality of feed production. The aim of our research is to study the productivity of sown grasslands depending on the composition of grass mixtures, the formation of phytocenoses for haymaking.
S. І. SМЕТАNА +3 more
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Agronomy, 2021 The present study included two experiments; the first one investigated the forage productivity and in vitro quality of a single cut taken at different plant ages (45, 60, and 75 days after sowing—DAS) from four prominent cereal crops, namely, barley, oat,
Heba S. A. Salama +3 more
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