Zobrazeno 1 - 10
of 44
pro vyhledávání: '"D. E. van der Zaag"'
Autor:
D. E. van der Zaag
Publikováno v:
Potato Research. 37:323-329
Growers are being faced with a conflic between the effects of specialization on increasing pest and disease problems (particularly late blight, Colorado beetle, cyst nematodes and tuber moth), and public opinion that will force them to reduce the use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31043aab5e6370cf2af18e72a91d632e
https://doi.org/10.1007/bf02358346
https://doi.org/10.1007/bf02358346
Autor:
D. E. van der Zaag
Publikováno v:
Potato Research. 33:541-543
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a9cf87dd121abc2cb560d8b03d25e26
https://doi.org/10.1007/bf02358032
https://doi.org/10.1007/bf02358032
Publikováno v:
Potato Research. 33:153-155
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e094e39d40019849e94deca9f768d11a
https://doi.org/10.1007/bf02358141
https://doi.org/10.1007/bf02358141
Autor:
D. E. van der Zaag
Publikováno v:
Starch - Stärke. 30:409-413
In Westeuropa (ca 52° NB) wird der potentielle Starke-Ertrag auf rund 17 t ha−1 eingeschatzt. Fur Kartoffelfelder die bis Oktober wachsen konnen, wird der Durchschnittsertrag in den Niederlanden auf ca 8 t ha−1 eingeschatzt. Die grosse Lucke zwi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1436836f5877b3daa6e3eb1e9f590ab
https://doi.org/10.1002/star.19780301203
https://doi.org/10.1002/star.19780301203
Report of the Symposium on ‘Control of volunteer potato plants‘, held in Wageningen on 6–8 June 1977
Autor:
D. E. van der Zaag
Publikováno v:
Potato Research. 20:352-355
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cac640c60c8795a2f0137117d906e19
https://doi.org/10.1007/bf02362248
https://doi.org/10.1007/bf02362248
Autor:
D. E. van der Zaag
Publikováno v:
Potato Research. 29:541-548
For most regions of the world, estimates have been made of the quantity of certified seed potatoes available and the potential demand for them. The differences between these figures are relatively small in America and Europe, but mostly large in Afri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4728a13934fcf9a38bbf34ed16bfbee9
https://doi.org/10.1007/bf02357920
https://doi.org/10.1007/bf02357920
Autor:
D. E. van der Zaag
Publikováno v:
American Potato Journal. 66:102-108
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bafa48adf5706866aec0c290d67744e6
https://doi.org/10.1007/bf02854430
https://doi.org/10.1007/bf02854430
Autor:
D. E. van der Zaag
Publikováno v:
Potato Research. 31:695-700
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ba082d90e2d163faf66b919bba43787
https://doi.org/10.1007/bf02361863
https://doi.org/10.1007/bf02361863
Autor:
P. L. Gomez, D. E. van der Zaag
Publikováno v:
Potato Research. 29:245-250
During the past two decades total potato production in Colombia tripled and the annual consumption per capita doubled; the National Potato Programme has probably contributed greatly to these increases. The main activities of this Programme have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b43b4c1fe90f2bf4556e8bf009b9b969
https://doi.org/10.1007/bf02357655
https://doi.org/10.1007/bf02357655
Autor:
D. E. van der Zaag, D. Horton
Publikováno v:
Potato Research, 26, 323-362
Potato Research 26 (1983)
Potato Research 26 (1983)
Potato production is increasing rapidly in the tropics and sub-tropics and is declining gradually in the temperate zone. It is not expected that in the near future potato production for ethanol production will become important or that the production
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36be7e8dbf33f6789cbeb7a6e6fdcd6e
https://doi.org/10.1007/bf02356154
https://doi.org/10.1007/bf02356154