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J.W. Penno

Observed names: J. W. PENNO, J. W. Penno, John Penno, John W Penno, Penno Jw
OpenAlex ID: A5022420624
Nitrogen inputs and losses from clover/grass pastures grazed by dairy cows, as affected by nitrogen fertilizer application
1999 · S. F. LEDGARD, J. W. PENNO, et al. · The Journal of Agricultural Science · 301
Effect of Stocking Rate on Pasture Production, Milk Production, and Reproduction of Dairy Cows in Pasture-Based Systems
2008 · K.A. Macdonald, J.W. Penno, et al. · Journal of Dairy Science · 279
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Nitrogen fixation by white clover in pastures grazed by dairy cows: Temporal variation and effects of nitrogen fertilization
2001 · S.F. Ledgard, M.S. Sprosen, et al. · Plant and Soil · 134
A Comparison of Three Strains of Holstein-Friesian Grazed on Pasture and Managed Under Different Feed Allowances
2008 · K.A. Macdonald, G.A. Verkerk, et al. · Journal of Dairy Science · 127
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Effect of Feeding Level Pre- and Post-Puberty and Body Weight at First Calving on Growth, Milk Production, and Fertility in Grazing Dairy Cows
2005 · K.A. Macdonald, J.W. Penno, et al. · Journal of Dairy Science · 119
Management decision rules to optimise milksolids production on dairy farms
1998 · MacDonald Ka, Penno Jw · Proceedings of the New Zealand Society of Animal Production · 106
Production and economic responses to intensification of pasture-based dairy production systems
2017 · K.A. Macdonald, J.W. Penno, et al. · Journal of Dairy Science · 83
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Weather, herbage quality and milk production in pastoral systems. 2. Temporal patterns and intra-relationships in herbage quality and mineral concentration parameters
2009 · J. R. Roche, L. R. Turner, et al. · Animal Production Science · 61
Short communication: Effect of stocking rate on the economics of pasture-based dairy farms
2011 · K.A. Macdonald, D. Beca, et al. · Journal of Dairy Science · 55
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A Comparison of Three Strains of Holstein-Friesian Cows Grazed on Pasture: Growth, Development, and Puberty
2007 · K.A. Macdonald, L.R. McNaughton, et al. · Journal of Dairy Science · 54
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Evaluation and Application of the Cornell Net Carbohydrate and Protein System for Dairy Cows Fed Diets Based on Pasture
1998 · E.S. Kolver, L.D. Muller, et al. · Journal of Dairy Science · 53
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Association between body condition score and live weight in pasture-based Holstein-Friesian dairy cows
2006 · Donagh P Berry, Kevin A Macdonald, et al. · Journal of Dairy Research · 51
Practical use of the rising plate meter (RPM) on New Zealand dairy farms
2001 · J.A. Lile, M.B. Blackwell, et al. · Proceedings of the New Zealand Grassland Association · 47
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Development and evaluation of a standardised means for estimating herbage mass of dairy pastures using the rising plate meter.
2001 · N.A. Thomson, M.P. Upsdell, et al. · Proceedings of the New Zealand Grassland Association · 41
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Nitrogen balances and losses on intensive dairy farms
1997 · S.F. Ledgard, J.W. Penno, et al. · Proceedings of the New Zealand Grassland Association · 40
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Farm systems - Impact of stocking rate on dairy farm efficiency
2001 · K.A. Macdonald, J.W. Penno, et al. · Proceedings of the New Zealand Grassland Association · 38
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Environmental impacts of different nitrogen inputs on dairy farms and implications for the Resource Management Act of New Zealand
1998 · S.F. Ledgard, J.R. Crush, et al. · Environmental Pollution · 35
Weather, herbage quality and milk production in pastoral systems. 3. Inter-relationships and associations between weather variables and herbage growth rate, quality and mineral concentration
2009 · J. R. Roche, L. R. Turner, et al. · Animal Production Science · 32
A whole-farm model applied to a dairy system
2002 · Wastney Me, Palliser Cc, et al. · Proceedings of the New Zealand Society of Animal Production · 31
Increased stocking rate and associated strategic dry-off decision rules reduced the amount of nitrate-N leached under grazing
2016 · J.R. Roche, S.F. Ledgard, et al. · Journal of Dairy Science · 30
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Weather, herbage quality and milk production in pastoral systems. 4. Effects on dairy cattle production
2009 · J. R. Roche, L. R. Turner, et al. · Animal Production Science · 30
Optimized Dairy Grazing Systems in the Northeast United States and New Zealand. I. Model Description and Evaluation
1999 · D.G. McCall, D.A. Clark, et al. · Journal of Dairy Science · 27
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Turnips for summer milk production
1995 · D.A. Clark, S.W. Howse, et al. · Proceedings of the New Zealand Grassland Association · 24
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Responses to supplementation by dairy cows given low pasture allowances in different seasons 1. Pasture intake and substitution
2006 · J. W. Penno, K. A. Macdonald, et al. · Animal Science · 21
Using nitrogen fertiliser to increase dairy farm profitability
1998 · J.M. Mcgrath, J.W. Penno, et al. · Proceedings of the New Zealand Society of Animal Production · 20
Works count: 53
Citation count: 1,978
H-index: 23
I10-index: 32
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