Zobrazeno 1 - 10
of 32
pro vyhledávání: '"J. B. Swan"'
Autor:
D. N. Stacey, C D Thompson, J B Swan, P Hannaford, G K Woodgate, P E G Baird, Christopher J. Foot, G H Woodman
The authors report the observation of the 1S-2S two-photon transition in atomic hydrogen in an atomic beam, excited by light from a narrow-band continuous-wave laser. The excitation takes place in a collision-free environment and detection of the res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2815cf996ee13d1d92d560edc0407710
https://ora.ox.ac.uk/objects/uuid:70e6841a-122a-40aa-9a57-2c3608d23f20
https://ora.ox.ac.uk/objects/uuid:70e6841a-122a-40aa-9a57-2c3608d23f20
Publikováno v:
Universal Soil Loss Equation: Past, Present, and Future
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ee35cc3cc420cf254fc2cbad7f4943
https://doi.org/10.2136/sssaspecpub8.c4
https://doi.org/10.2136/sssaspecpub8.c4
Publikováno v:
Soil Science Society of America Journal. 63:1290-1299
Nitrate leaching to ground and surface water is an increasing concern in agriculture. Ridge tillage and associated residue management offer potential for modifying the pattern of soil water and solute movement to reduce NO 3 leaching from corn (Zea m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93ab8d3531c12ea1c0017ed6d897b0c6
https://doi.org/10.2136/sssaj1999.6351290x
https://doi.org/10.2136/sssaj1999.6351290x
Autor:
Dan B. Jaynes, J. B. Swan
Publikováno v:
Soil Science Society of America Journal. 63:264-269
Point injection of N fertilizers within the ridge of ridge-tilled soils has shown promise in reducing nitrate leaching in short-term rainfall simulation studies, but it has not been studied under natural rainfall throughout the growing season. At two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7be70bf1977cf4e2bf743a469abd84ca
https://doi.org/10.2136/sssaj1999.03615995006300020002x
https://doi.org/10.2136/sssaj1999.03615995006300020002x
Publikováno v:
Soil Science Society of America Journal. 59:185-191
Tillage management may influence water and solute movement throughout the root zone. To evaluate tillage effects on solute transport, parameters were estimated from breakthrough curves and directly measured macropores in no-till (NT) and moldboard-pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20765e2541baacb27caaae951075061e
https://doi.org/10.2136/sssaj1995.03615995005900010028x
https://doi.org/10.2136/sssaj1995.03615995005900010028x
Autor:
J. B. Swan, William H. Paulson, Roger L. Higgs, Arthur E. Peterson, Theodore B. Bailey, Nyle C. Wollenhaupt
Publikováno v:
Agronomy Journal. 86:711-718
Many farmers in the northern Corn Belt are reluctant to adopt notillage practices with continuous corn (Zea mays L.) because they fear that phenological development, stand establishment, and grain yield will be reduced compared with moldboard or chis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1e40b82e04bd921ae396917e661d1a0
https://doi.org/10.2134/agronj1994.00021962008600040024x
https://doi.org/10.2134/agronj1994.00021962008600040024x
Publikováno v:
Soil Science Society of America Journal. 57:917-923
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3c7b941857be842b0775c43f0708212
https://doi.org/10.2136/sssaj1993.03615995005700040006x
https://doi.org/10.2136/sssaj1993.03615995005700040006x
Publikováno v:
Soil and Tillage Research. 18:145-165
A model is presented for predicting hourly soil temperatures under bare and residue plus plantcovered east-west oriented ridges in the Northern U.S. Corn Belt. The model is based on the implicit finite difference solution of a one-dimensional heat-fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a0e652c0eb4f93aca4b6f7216cfecb9
https://doi.org/10.1016/0167-1987(90)90056-j
https://doi.org/10.1016/0167-1987(90)90056-j
Publikováno v:
Soil Science Society of America Journal. 54:209-216
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eabe7545d27fb5c53b57c3f3b0434763
https://doi.org/10.2136/sssaj1990.03615995005400010033x
https://doi.org/10.2136/sssaj1990.03615995005400010033x
Publikováno v:
Conference on Applied Statistics in Agriculture.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca5fd8d0f7c102f10e65af8c013e6f3e
https://doi.org/10.4148/2475-7772.1315
https://doi.org/10.4148/2475-7772.1315