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Absolute calibration in grazing incidence interferometry via rotational averaging
Applied Optics, 2006Interferometry in grazing incidence can be used to test cylindrical mantle surfaces. The absolute accuracy of the resulting surface profiles is limited by systematic wavefront aberrations caused in the interferometer, in particular due to an inversion of the test wavefront in an interferometer using diffractive beam splitters. For cylindrical specimens,
Mantel, K. +3 more
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Continuous and Rotational Grazing for Beef Production
1984There is great interest in intensive continuous grazing, especially because of the saving in labour, but on the other hand there are some questions in connection with grass quality, animal health and animal production.
L. Carlier, A. Andries, A. de Vliegher
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Journal of the Grassland Society of Southern Africa, 1990
Kikuyu pastures at the Ukulinga research farm near Pietermaritzburg were fertilized with 150 and 300 kg nitrogen (N) ha -1 in the summer periods of 1985-86 and 1986-87, and were continuously grazed with steers at stocking rates of 5.4, 8.0 and 10.7 steers ha -1.
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Kikuyu pastures at the Ukulinga research farm near Pietermaritzburg were fertilized with 150 and 300 kg nitrogen (N) ha -1 in the summer periods of 1985-86 and 1986-87, and were continuously grazed with steers at stocking rates of 5.4, 8.0 and 10.7 steers ha -1.
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Characterizing and simulating a rotational grazing strategy
1997The management of dairy production systems based on rotational grazing and maize-concentrate feeding requires a complex lookahead decision making procedure to elaborate a seasonal strategy that is sufficiently robust to uncertainty. In this paper, the problem is characterized rather precisely as finding for the late winter to early summer period an ...
Cros, Marie-Josée +3 more
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Rotational grazing for soil carbon sequestration
2016Soil carbon sequestration has the potential to provide significant economic and environmental benefits to communities in semi-arid regions around the world. Increased levels of carbon enhance soil fertility and water retention capacity, leading to higher agricultural productivity.
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Climate-driven ecological thresholds in China’s drylands modulated by grazing
Nature Sustainability, 2023Changjia Li, 伯杰 傅
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Zooplankton grazing of microplastic can accelerate global loss of ocean oxygen
Nature Communications, 2021Karin F Kvale +2 more
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