Zobrazeno 1 - 10
of 31
pro vyhledávání: '"R. G. Rowberry"'
Autor:
R. G. Rowberry, W. C. Pfeiffer
Publikováno v:
American Potato Journal. 61:362-367
Broadcasting fertilizer before planting often gives similar yields to banding the same amount of fertilizer at planting. On farms of 200 ha or more, where economies of scale can be realized, it should be both convenient and profitable to use broadcas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7befea8457347b87f1a0c17adf299683
https://doi.org/10.1007/bf02854538
https://doi.org/10.1007/bf02854538
Autor:
R. G. Rowberry, R. Jung
Publikováno v:
American Potato Journal. 53:337-341
Specifications and construction details are given for a machine to enable fertilizer to be banded at any desired rate, in up to six rows of any width down to 12 in. (30 cm) for population density studies in potatoes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da913563cba050418bd2ab774c233ebe
https://doi.org/10.1007/bf02852196
https://doi.org/10.1007/bf02852196
Publikováno v:
American Potato Journal. 60:193-197
Conestoga is an early, white-skinned potato with very vigorous early growth. It has very good boiling, baking and chipping qualities. Yield is comparable to that of Superior, with chip colour and specific gravity slightly higher than Norchip’s. Con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a04beb5d8c17a928d33794056b4cdbd0
https://doi.org/10.1007/bf02854001
https://doi.org/10.1007/bf02854001
Autor:
R. G. Rowberry, D. R. Lynch
Publikováno v:
American Potato Journal. 54:43-56
Two reciprocal polynomial models were used to quantify yield/stem density relationships in the Russet Burbank cultivar y−θ = α + βϱ and y−1 = β0 + β1ϱ + β2ϱ2 where y = yield per plant; ϱ = stems m−2 and β0, β1, β2 and α, β, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eab97709a793a43da75be0d697725fb
https://doi.org/10.1007/bf02851873
https://doi.org/10.1007/bf02851873
Autor:
A. J. D. Howells, R. G. Rowberry
Publikováno v:
Potato Research. 22:163-175
North American potato production differs from that of Britain and continental Europe in that it is mostly carried out on light (sandy loam) soils permitting the use of large machinery and minimizing problems with soil tilth at planting and harvest. G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c5b925fe39616cc2e3eddd1ce4ac4f2
https://doi.org/10.1007/bf02366947
https://doi.org/10.1007/bf02366947
Autor:
R. G. Rowberry, G. R. Johnston
Publikováno v:
American Potato Journal. 59:39-43
Simcoe, a round, white, early potato variety with excellent boiling, baking and chipping qualities, was released by the University of Guelph, Agriculture Canada and the Ontario Ministry of Agriculture and Food in 1981. Yield is comparable to that of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d879ccc689c042952bd79f20f78602d
https://doi.org/10.1007/bf02854882
https://doi.org/10.1007/bf02854882
Autor:
R. G. Rowberry, G. R. Johnston
Publikováno v:
American Potato Journal. 57:543-552
Urea and diammonium phosphate were compared with ammonium nitrate and triple superphosphate, in all combinations, as sources of N and P in fertilizer on two soil types important in potato production in Ontario. Greenhouse experiments with these soils
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16e31acbde5fe2fbaaf3f32f80668f90
https://doi.org/10.1007/bf02854155
https://doi.org/10.1007/bf02854155
Autor:
J. W. Ketcheson, R. G. Rowberry
Publikováno v:
Canadian Journal of Plant Science. 58:779-782
Potatoes (Solanum tuberosum L. ’Kennebec’) receiving similar N, P and K nutrition showed no consistent changes in yield, specific gravity and quality of boiled tubers when K2SO4 and KNO3 were substituted for the commonly-used KCl. Broadcasting th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c40fbe2968e9790345e60b8012f49ae2
https://doi.org/10.4141/cjps78-115
https://doi.org/10.4141/cjps78-115
Autor:
R. G. Rowberry, G. R. Johnston
Publikováno v:
American Potato Journal. 57:47-51
Rideau is a maincrop, red-skinned potato variety with excellent boiling and baking quality. It is not suitable for chips and French fries. In Ontario, its yield is higher than Chieftain’s and its plants are very resistant toVerticillium alboatrum a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6135645234b6efe20290478fed975481
https://doi.org/10.1007/bf02866424
https://doi.org/10.1007/bf02866424
Publikováno v:
American Potato Journal. 55:107-110
Nipigon is a high-yielding, early sizing, table potato with good boiling and baking quality and is specifically adapted to northern Ontario. It has some resistance to late blight, rhizoctonia and viruses X and Y.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::548bd22e1e941d781f1fefedab27e604
https://doi.org/10.1007/bf02852097
https://doi.org/10.1007/bf02852097