Zobrazeno 1 - 10
of 31
pro vyhledávání: '"H. N. Hayhoe"'
Publikováno v:
International Journal of Biometeorology. 47:62-72
Seven years of winter survival data for winter wheat ( Triticum aestivum L.) were collected on a loam soil located on the Central Experimental Farm at Ottawa, Ontario (45 degrees 23'N, 75 degrees 43'W). The site was low-lying and subject to frequent
Publikováno v:
Precision Agriculture. 3:225-236
Measurements of mouldboard plow draft can potentially provide a useful tool for continuously mapping, as a surrogate variable, crop limiting soil properties such as soil strength/compaction. Numerous researchers have shown that loading on tillage too
Publikováno v:
Geoderma. 104:325-343
Soil compaction can suppress crop yields. Thus, compaction indices such as cone penetration resistance (PR) can be useful to farmers and researchers interested in identifying areas in the field where soil strength/compaction, or governing soil proper
Publikováno v:
Soil and Tillage Research. 58:193-206
For corn crops on soils with fine texture in eastern Canada, research has been ongoing on the relationships between corn grain yields and management practice, soil strength/compaction, and soil nutrient status. However, these variables can operate in
Autor:
C. J. Andrews, H. N. Hayhoe
Publikováno v:
International Journal of Biometeorology. 42:189-200
Four years of winter survival data for winter wheat (Triticum aestivum L.) were collected on a loam soil located on the Central Experimental Farm at Ottawa, Ontario (45° 23′N, 75° 43′W). The site was low-lying and subject to frequent winter flo
Publikováno v:
Soil and Tillage Research. 40:39-54
Low seedbed temperatures at planting reduce corn (Zea mays L.) germination, rate of emergence and final stand establishment at many corn producing locations in Canada. Adoption of conservation tillage at these locations and the accumulation of surfac
Publikováno v:
ResearcherID
During the past decade, a number of developments have improved the possibilities for real-time, in situ monitoring of soil water content, providing potential for much improved testing and validation of soil water models Brief reviews of the principle
Autor:
H. N. Hayhoe, D. W. Stewart, D. Balchin, Bao-Luo Ma, J.L.B. Culley, Lianne M. Dwyer, M. McGovern
Publikováno v:
Canadian Journal of Soil Science. 76:23-28
Tillage effects on the soil environment suggest that it may influence rooting depth and root distribution. In this study, corn (Zea mays L.) rooting depth and root mass distribution were compared under conventional and conservation (chisel, ridge, no
Publikováno v:
Journal of Sustainable Agriculture. 5:85-99
Shoot dry matter data from a multi-year experiment with four tillage treatments (conventional (MB), chisel (CH), ridge till (R) and no-till (NT)) conducted on two sites at Ottawa, Canada (45°23'N, 75°43'W) were analyzed to determine to what extent
Publikováno v:
Canadian Journal of Soil Science. 73:489-501
Rainfall and snowmelt runoff on soil frozen below the surface are recognized as important factors contributing to soil loss in Canada. The risk of rain on frozen soil has been quantified, and the amount of snowmelt on frozen soil has been estimated.