Zobrazeno 1 - 10
of 54
pro vyhledávání: '"E. Chakwizira"'
Autor:
R. N. Gillespie, John de Ruiter, Edmar Teixeira, A.J. Michel, E. Chakwizira, S. Maley, E.N. Khaembah, M. J. George
Publikováno v:
New Zealand Journal of Agricultural Research. 65:63-81
The effects of water stress on fodder beet (Beta vulgaris L.) production in the field are confounded by the influences of variable inter- and intra-season rainfall. In this study, a rain shelter ex...
Autor:
Edmar Teixeira, E. Chakwizira, E.N. Khaembah, S. Maley, Rob F. Zyskowski, M. J. George, John de Ruiter
Publikováno v:
New Zealand Journal of Agricultural Research. 63:449-466
Two fodder beet (Beta vulgaris L.) cultivars (‘Rivage’ and SF Brigadier™) were evaluated in a field experiment to quantify the effect of cultivar and sowing date on growth physiology. The crops wer...
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Autor:
D. E. Dalley, Brendon J. Malcolm, Nathan P. Arnold, Paul Johnstone, John de Ruiter, S. Maley, E. Chakwizira
Publikováno v:
New Zealand Journal of Agricultural Research. 62:369-398
Nitrate leaching from soil is a major problem in New Zealand pastoral systems, requiring development of practical methods to manage accumulation of nitrates. Nine feed trials were carried out in the Waikato (n = 3) and in Canterbury (n = 6) between 2
Autor:
Andrea J. Pearson, John de Ruiter, A. L. Fletcher, Paul Johnstone, E. Chakwizira, Mike Parker
Publikováno v:
New Zealand Journal of Agricultural Research. 62:1-22
The effects of winter crop selection, timing of harvest dates for the winter crop and sowing date and hybrid duration for maize crops on total biomass and feed quality for spring-winter crop sequen...
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
Publikováno v:
New Zealand Journal of Agricultural Research. 60:319-332
The New Zealand Government’s National Policy Statement on Fresh Water Management has resulted in increased scrutiny of New Zealand grazing systems with regards to their environmental impact. With this has been greater interest in nitrogen (N) loss
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
Autor:
E. D. Meenken, Denis Curtin, P. M. Fraser, N Shaw, E.N. Khaembah, Steve Thomas, Brendon J. Malcolm, Joanna Sharp, Paul Johnstone, R.F. Zyskowski, Hamish E. Brown, John de Ruiter, Edmar Teixeira, E. Chakwizira
Publikováno v:
Agriculture, Ecosystems & Environment. 220:226-235
The effectiveness of growing winter cover crops to mitigate nitrogen (N) leaching can be widely variable, even within a single climatic zone. We sought to investigate key drivers of this variability for the Canterbury Plains of New Zealand. First, th
Publikováno v:
European Journal of Agronomy. 74:144-154
Fodder beet is a highly productive forage crop of expanding use in livestock production systems in temperate regions, notably in Europe and New Zealand. The main determinant of fodder beet productivity is the amount of light intercepted by the crop c