Zobrazeno 1 - 10
of 32
pro vyhledávání: '"J. M. de Ruiter"'
Autor:
B. J. Malcolm, K. C. Cameron, M. H. Beare, S. T. Carrick, J. J. Payne, S. C. Maley, H. J. Di, K. K. Richards, D. E. Dalley, J. M. de Ruiter
Publikováno v:
Nutrient Cycling in Agroecosystems. 122:273-288
This study tested the effect of oat catch crops on mineral nitrogen (N) leaching losses from cool season fodder beet grazing. Undisturbed soil monolith lysimeters were collected from two grassland sites with soils featuring contrasting texture and wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c827488862bb1fb55a1e5621c628b47
https://doi.org/10.1007/s10705-022-10201-9
https://doi.org/10.1007/s10705-022-10201-9
Autor:
Edmar Teixeira, J. M. de Ruiter, E. Chakwizira, Hamish E. Brown, E.N. Khaembah, R.F. Zyskowski
Publikováno v:
Agricultural Systems. 158:23-38
The growing importance of fodder beet ( Beta vulgaris subsp. vulgaris var. alba L.) as stock feed in recent years has created the need to develop a crop model to help assess crop yield potential across environmental growth conditions. This paper desc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ee119a7d980680ebb44584f1d6b8f0b
https://doi.org/10.1016/j.agsy.2017.08.005
https://doi.org/10.1016/j.agsy.2017.08.005
Publikováno v:
Field Crops Research. 199:21-30
Criteria for N diagnostics have been developed for a range of agricultural crops. The Nitrogen Nutrition Index (NNI) is a widely used indicator of N status. The NNI represents the relationship between above-ground N concentration and an estimated cri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa809e28d261c331b008b8f9818ad4fb
https://doi.org/10.1016/j.fcr.2016.09.012
https://doi.org/10.1016/j.fcr.2016.09.012
Autor:
Hongjie Di, Keith C. Cameron, Brendon J. Malcolm, J. M. de Ruiter, D. E. Dalley, Grant Edwards
Publikováno v:
New Zealand Journal of Agricultural Research. 59:194-203
Nitrate-N (NO3−-N) leaching losses from dairy cow urine and non-urine areas of simulated winter grazing of fodder beet (Beta vulgaris L.) were quantified using large intact soil monolith lysimeters (50 cm diameter × 70 cm depth), containing Balmor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d14add1d43f8594e229d961cc128cab
https://doi.org/10.1080/00288233.2016.1150307
https://doi.org/10.1080/00288233.2016.1150307
Publikováno v:
New Zealand Journal of Agricultural Research. 58:259-270
Winter grazing of forage kale (Brassica oleracea var. acephala L.) has been linked to environmental pollution and negative animal health issues. An experiment with seven nitrogen (N) fertiliser application rates (0–500 kg N ha−1) was carried out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f8a7440a1e64622599223f7835a5204
https://doi.org/10.1080/00288233.2015.1016538
https://doi.org/10.1080/00288233.2015.1016538
Publikováno v:
Grass and Forage Science. 70:620-630
Crop growth is related to radiation-use efficiency (RUE), which is influenced by the nitrogen (N) status of the crop, expressed at canopy level as specific leaf N (SLN) or at plant level as N nutrition index (NNI). To determine the mechanisms through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0a33215b2fbeb1db9eaefe29913c6eb
https://doi.org/10.1111/gfs.12150
https://doi.org/10.1111/gfs.12150
Publikováno v:
New Zealand Journal of Agricultural Research. 57:75-89
Nitrogen (N) supply needs to be closely matched to crop demand to achieve optimum N use efficiency (NUE). Sub-optimal N supply can lead to poor yields, whereas excess N application may cause nitrate leaching and environmental pollution. An experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d273417de0985dbae590e0ff46eefe87
https://doi.org/10.1080/00288233.2013.869502
https://doi.org/10.1080/00288233.2013.869502
Publikováno v:
Proceedings of the New Zealand Grassland Association. 76:125-134
In New Zealand, summer rainfall is unpredictable and usually insufficient to meet crop water requirements. The impact of water availability on yield potential of fodder beet (Beta vulgaris L.) is unknown. A single year, single site replicated field e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97aba75519bbf7336d3a6291fa98f750
https://doi.org/10.33584/jnzg.2014.76.2969
https://doi.org/10.33584/jnzg.2014.76.2969
Autor:
David F. Chapman, J. M. de Ruiter, D. E. Dalley, Keith C. Cameron, Racheal H. Bryant, H.J.di B J. Malcolm, Grant Edwards, J. B. Pinxterhuis
Publikováno v:
Proceedings of the New Zealand Grassland Association. 76:81-88
Crop dry matter (DM) yield, DM utilisation and body condition score (BCS) of dairy cows were measured over two winters on an irrigated stony, free-draining Balmoral soil for three crop grazing systems: fodder beet (FB); early-sown kale (EK); and late
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3da7128962e404c26986bbaed9282c5a
https://doi.org/10.33584/jnzg.2014.76.2964
https://doi.org/10.33584/jnzg.2014.76.2964
Publikováno v:
Grass and Forage Science. 69:182-190
Establishing the radiation-use efficiency (RUE) of forage brassica crops will aid our understanding of their photosynthetic performance. The concept of RUE has been developed for cereals and legumes, but there is limited information for forage brassi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57d507f92c225989aee839aa38b25a28
https://doi.org/10.1111/gfs.12047
https://doi.org/10.1111/gfs.12047