Zobrazeno 1 - 5
of 5
pro vyhledávání: '"D. B. Johnstone-wallace"'
Autor:
D. B. Johnstone-Wallace
Publikováno v:
Proceedings of the British Society of Animal Production. 1944:74-84
The paper as presented consisted of extracts from “Grazing management practices and their relationship to the behaviour and grazing habits of cattle ”, by D. B. Johnstone-Wallace and Keith Kennedy, Department of Agrostology, Cornell University, I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c982b73395ac86868c2b12cc76aafec
https://doi.org/10.1017/s0369852100000105
https://doi.org/10.1017/s0369852100000105
Autor:
D. B. Johnstone-wallace
Publikováno v:
Agronomy Journal. 29:441-455
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7158c24d2cbb466a884a4f1abb759831
https://doi.org/10.2134/agronj1937.00021962002900060003x
https://doi.org/10.2134/agronj1937.00021962002900060003x
Autor:
D. B. Johnstone-Wallace
Publikováno v:
Soil Science Society of America Journal. 2:299-304
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0f6071a9ea077a26e126ef9654b5473
https://doi.org/10.2136/sssaj1938.036159950002000c0047x
https://doi.org/10.2136/sssaj1938.036159950002000c0047x
Publikováno v:
Agronomy Journal. 34:963-974
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db9e54d945fdfd3754bfe9ef8b8cbe0f
https://doi.org/10.2134/agronj1942.00021962003400110001x
https://doi.org/10.2134/agronj1942.00021962003400110001x
Autor:
D. B. Johnstone-Wallace, Keith Kennedy
Publikováno v:
The Journal of Agricultural Science. 34:190-197
1. The grazing habits of Aberdeen-Angus and Hereford beef cows, on pasture without supplementary feed, were studied over continuous periods of 24 hr. during the months of July, August and September. The pastures were from 3 to 7 acres in extent and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a8cf7661a3f50fdc5c971e36e89d3c6
https://doi.org/10.1017/s0021859600023649
https://doi.org/10.1017/s0021859600023649