Zobrazeno 1 - 10
of 21
pro vyhledávání: '"R.M. Greenfield"'
Autor:
Mike Dodd, K. N. Tozer, David R. Stevens, Tim Rhodes, Sue Quilter, Iris Vogeler, R.M. Greenfield
Publikováno v:
Journal of New Zealand Grasslands. 82:199-209
The improvement in forage quality and quantity of summer-dry hill country pasture resulting from the introduction of clover is well recognised. However, ensuring the persistence of the commonly availablecultivars is challenging, in the face of season
Autor:
R.M. Greenfield, Emma Noakes, Ants H.C. Roberts, C. A. Cameron, Tim Rhodes, Renee Grigson, Sue M. Zydenbos, K. N. Tozer
Publikováno v:
Journal of New Zealand Grasslands. 82:83-90
Variegated thistle in East Coast North Island hill country reduces pasture and livestock productivity. To quantify the impact of increasing amounts of pasture cover (herbage mass) on this weed, variegated thistle seeds were hand-sown in autumn into p
Publikováno v:
New Zealand Plant Protection. 72:158-165
Variegated thistle (Silybum marianum) is a prevalent weed on the East Coast of the North Island of New Zealand. Goats may provide a novel management tool to control thistles, but little is known about how cutting thistles prior to grazing affects thi
Publikováno v:
Journal of New Zealand Grasslands. :225-234
Variegated thistle can dominate north-facing slopes on North Island East Coast hill-country reducing pasture production and livestock carrying capacity. On a hill-country sheep and beef property near Gisborne, the herbicides 2,4-D + clopyralid were a
Autor:
P.D. Muir, T. L. Knight, T.J. Fraser, NA Mapp, G. B. Douglas, C. A. Cameron, R. A. Moss, J. Beautrais, R.M. Greenfield, K. N. Tozer, G.M. Rennie, R.A. Gray
Publikováno v:
New Zealand Journal of Agricultural Research. 59:389-411
This study aimed to determine which practices resulted in the greatest establishment (plant density) of a range of grasses, legumes and herbs at four geo-climatically different hill country sites in the North Island (three sites) and South Island (on
Publikováno v:
New Zealand Plant Protection. 69:263-269
Weed ingress was assessed monthly over four years in a total of six swards of perennial ryegrass (Lolium perenne) or tall fescue (Schedonorus arundinaceus) to which were added a legume (2 species mix) legume and forage herbs (4 species mix) or legume
Autor:
N.R. Mapp, G.M. Rennie, D. J. Wilson, L.T. Aalders, Nigel L. Bell, W.M. King, C. A. Cameron, K. N. Tozer, R.M. Greenfield
Publikováno v:
New Zealand Journal of Agricultural Research. 58:241-258
To determine the impact of pasture renewal on dairy pasture performance, a total of 24 renewed and unrenewed pastures were monitored in Bay of Plenty and Waikato for 5 years. Renewed pastures produced an additional 1.5, 1.8 and 1.9 t dry matter (DM)
Publikováno v:
New Zealand Plant Protection. 68:98-104
Yellow bristle grass is a C4 summeractive annual weed prevalent in the upper North Island Its production and nutritive value was assessed onfarm to validate the assumptions used in a published Farmax model on the impact of yellow bristle grass The pe
Publikováno v:
Animal Production Science. 57:1457
The effect of moisture deficit on herbage production, root growth, tiller density, leaf appearance, percentage dry matter, and water-soluble carbohydrate (WSC) concentration and content in the stubble of Epichloë endophyte-infected perennial ryegras
Publikováno v:
Crop and Pasture Science. 68:561
Basal and canopy cover of sown and unsown species in swards sown with six species mixtures were assessed monthly from autumn 2010 to spring 2014, to test the hypotheses that (a) sowing an alternative pasture base, or (b) increasing the complexity of