Zobrazeno 1 - 10
of 189
pro vyhledávání: '"B. J. Legg"'
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 355:1321-1334
The natural cycle of plant and animal life involves recycling materials through the open environment. Thus carbon dioxide and many waste substances are released to the soil or atmosphere and return...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c65a7383d704722451298137b8021513
https://doi.org/10.1098/rsta.1997.0059
https://doi.org/10.1098/rsta.1997.0059
Autor:
B. J. Legg
Publikováno v:
Experimental Agriculture. 26:447-447
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::035dc52377475ac919ae20d5d8d042e5
https://doi.org/10.1017/s0014479700003665
https://doi.org/10.1017/s0014479700003665
Publikováno v:
Journal of Hydraulic Engineering; Jan2025, Vol. 151 Issue 1, p1-11, 11p
Publikováno v:
Boundary-Layer Meteorology. 27:163-169
Recent papers by Wilson et al. (1981b) and Legg and Raupach (1982) give methods for the calculation of particle trajectories in turbulence with a gradient in vertical velocity variance Σ2w. However the two methods seem contradictory.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84c66c3aa7e474516a9c3a453d92dd0c
https://doi.org/10.1007/bf00239612
https://doi.org/10.1007/bf00239612
Autor:
P. C. H. Miller, B. J. Legg
Publikováno v:
Outlook on Agriculture. 18:18-23
Recent dramatic increases in crop yields are due to many factors but one of the most important is the wide use of crop protection chemicals. For maximum efficiency, it is essential to develop spraying equipment that uses the minimum quantity of chemi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa6555e13ef2eb5303fa6a91eb7c3c2c
https://doi.org/10.1177/003072708901800104
https://doi.org/10.1177/003072708901800104
Autor:
B. K. French, B. J. Legg
Publikováno v:
The Journal of Agricultural Science. 92:15-37
SummaryA series of irrigation experiments was done at Rothamsted where the soil is a flinty silty clay loam over flinty clay. The results are compared with those obtained by Penman (1962, 1970, 1971) at Woburn where the soil is a loamy sand over sand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09c7b88d377b045cebbeb728b2c9c764
https://doi.org/10.1017/s0021859600060469
https://doi.org/10.1017/s0021859600060469
Autor:
B. J. Legg, I. F. Long
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 101:611-628
The coefficient of turbulent diffusion was measured in a 1·25m tall wheat canopy using a uniform release of nitrous oxide, the energy and momentum balance methods, and the humidity profile. The nitrous oxide profile gave the most accurate values, KN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::653d788d008bad22becabbab1df0f067
https://doi.org/10.1002/qj.49710142916
https://doi.org/10.1002/qj.49710142916
Publikováno v:
Agricultural Meteorology. 23:21-43
Wind and temperature profiles were measured above irrigated and non-irrigated field beans in 1972, and potatoes in 1973, and the zero-plane displacement d and roughness length z 0 were derived. For both crops the ratios of d and z 0 to crop height h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf81fad1c0869a43568e86c498e06ddc
https://doi.org/10.1016/0002-1571(81)90089-3
https://doi.org/10.1016/0002-1571(81)90089-3
Publikováno v:
Boundary-Layer Meteorology. 35:21-52
This is the first of a series of three papers describing experiments on the dispersion of trace heat from elevated line and plane sources within a model plant canopy in a wind tunnel. Here we consider the wind field and turbulence structure. The mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcbe9d7eaf42e99eaf04fd3f9eaca7bf
https://doi.org/10.1007/bf00117300
https://doi.org/10.1007/bf00117300
Autor:
F.A. Powell, B. J. Legg
Publikováno v:
Agricultural Meteorology. 20:47-67
The paper describes a two-dimensional model of the movement and deposition of fungal spores within and above a barley crop. The model is tested against experimental measurements of spores of barley mildew, Erisyphe graminis, downwind of a narrow stri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1176060a26441bc81cac64a13f00fe2
https://doi.org/10.1016/0002-1571(79)90050-5
https://doi.org/10.1016/0002-1571(79)90050-5