Zobrazeno 1 - 5
of 5
pro vyhledávání: '"M. C. J. Grevers"'
Publikováno v:
Canadian Journal of Soil Science. 89:521-530
A study was conducted to examine the effect of tillage on soil conditions and crop growth at three long-term (> 10 yr) no-till sites, one in each of the Brown, Black, and Gray soil zones of Saskatchewan. The four tillage treatments consisted of one c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38efbd31f6ad4544c27231638cbb9e1b
https://doi.org/10.4141/cjss08041
https://doi.org/10.4141/cjss08041
Autor:
M. C. J. Grevers, J. Taylor
Publikováno v:
Journal of Production Agriculture. 8:557-561
The feasibility of deep tillage of soils depends on agronomic and economic considerations. The objective of this research was to determine the economic feasibility of subsoiling in Saskatchewan. The economic analysis examined the net present values a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3465fb678baeadb8b00407cb2d9a20d6
https://doi.org/10.2134/jpa1995.0557
https://doi.org/10.2134/jpa1995.0557
Autor:
E. de Jong, M. C. J. Grevers
Publikováno v:
Canadian Journal of Soil Science. 73:81-91
The effect of subsoiling of Solonetzic and of Chernozemic soils was studied over a 5-yr period under dryland conditions and under irrigation, involving 11 farm sites, and 2 soil zones. Subsoiling reduced soil density for up to 3 yr on most of the Sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebd8e7c0797f708eaf87411838f97b9a
https://doi.org/10.4141/cjss93-008
https://doi.org/10.4141/cjss93-008
Autor:
M. C. J. Grevers, E. De Jong
Publikováno v:
Canadian Journal of Soil Science. 70:93-103
The structure of a clay soil was characterized following the growing of 10 grasses continuously for 11 yr. There were no significant differences in bulk density, total porosity, and air-filled porosity amongst the grass plots. Differences in soil agg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d705ff783d17e667c43da0d68d584331
https://doi.org/10.4141/cjss90-010
https://doi.org/10.4141/cjss90-010
Publikováno v:
Canadian Journal of Soil Science. 69:629-637
The soil macropore system was analyzed with the help of image analysis, comparing images from computed-tomography (CT) scanning with images obtained from thin sections. The images obtained with the two methods were analyzed with an image analyzer (IB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f22746a5a0153068eab76631a3a2a493
https://doi.org/10.4141/cjss89-062
https://doi.org/10.4141/cjss89-062