Zobrazeno 1 - 8
of 8
pro vyhledávání: '"C. I. Ludemann"'
Autor:
C. I. Ludemann, N. Wanner, P. Chivenge, A. Dobermann, R. Einarsson, P. Grassini, A. Gruere, K. Jackson, L. Lassaletta, F. Maggi, G. Obli-Laryea, M. K. van Ittersum, S. Vishwakarma, X. Zhang, F. N. Tubiello
Publikováno v:
Earth System Science Data, Vol 16, Pp 525-541 (2024)
Nutrient budgets help to identify the excess or insufficient use of fertilizers and other nutrient sources in agriculture. They allow for the calculation of indicators, such as the nutrient balance (surplus if positive or deficit if negative) and nut
Externí odkaz:
https://doaj.org/article/e6887299e1834a41bc86067388e6b4e6
Publikováno v:
Journal of New Zealand Grasslands. 79:97-101
The current DairyNZ Forage Value Index (FVI) categorises ryegrass cultivar-endophyte combinations into five, 'star rating' groups for dry matter (DM) yield using data from the National Forage Variety Trial (NFVT) system. However, variability in perfo
Publikováno v:
Agricultural Systems. 137:89-100
The effect of improving energy concentration of pasture dry matter (DM) in perennial ryegrass (Lolium perenne L.) on two dairy farms in temperate regions (south west Victoria and Tasmania) of Australia was modeled in this study. A deterministic, dyna
Autor:
Kevin F. Smith, C. I. Ludemann
Publikováno v:
Grass and Forage Science. 71:66-78
The emphasis plant breeders place on improving seasonal dry-matter (DM) yield of pasture plants may increase farm profitability through greater supply of DM for livestock in critical seasons. Economic values (EV) for traits can be used to guide plant
Publikováno v:
Journal of Animal Science. 92:5345-5357
The objective of this study was to develop a transparent, comprehensive, and flexible model for each trait for the formulation of breeding objectives for sow traits in swine breeding programs. Economic values were derived from submodels considering a
Publikováno v:
Animal Production Science. 57:1357
Perennial ryegrass (Lolium perenne L.) breeding efforts have focussed on improving pasture nutritive value by altering flowering behaviour and increasing ploidy. However, the gains in farm profitability that this has delivered are not known. The flow
Publikováno v:
Animal Production Science. 56:442
Cotton (Gossypium spp.) and canola (Brassica spp.) are significant crops worldwide. Vegetable oil extracted from the seed of these crops offers the potential to reduce greenhouse gas emissions (GHG) through conversion into biodiesel to displace GHG a
Publikováno v:
Crop and Pasture Science. 66:205
Persistence of pasture is considered an important trait by many farmers using pasture-based systems. Despite this, pasture persistence is generally poorly defined. This study includes an analysis of changes in farm operating profits (OP) when pasture