Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Gyles W. Randall"'
Publikováno v:
Journal of environmental quality. 48(4)
Successful N management practices for the US Midwest must optimize crop production and minimize NO-N losses from subsurface tile drainage. The objective of this study was to measure the effects of N rate, N application timing, and nitrapyrin [2-chlor
Autor:
Michael A. Schmitt, Matt A. Yost, Jeffrey A. Coulter, Craig C. Sheaffer, Michael P. Russelle, Gyles W. Randall
Publikováno v:
Agronomy Journal. 107:486-494
Knowledge about how stand age affects N response in first-year corn (Zea mays L.) following alfalfa (Medicago sativa L.) is needed to improve N credit predictions. In a 3-yr study, we evaluated response to N in first-year corn following fall-terminat
Autor:
Emerson D. Nafziger, Fabián G. Fernández, R. G. Hoeft, María B. Villamil, Kristin D. Greer, Jeffrey A. Vetsch, Gyles W. Randall
Publikováno v:
Agronomy Journal. 102:1674-1681
Phosphorus fertilizer is frequently fall-applied for corn (Zea mays L.). Diammonium-(DAP) or monoammonium-phosphates (MAP) are the preferred P fertilizers and the N in MAP and DAP is assumed to be available for corn. Our objective was to evaluate the
Publikováno v:
Crop Management. 8:1-10
"Compost" dairy barns are relatively new, and this manure, which we refer to as stratified bedded pack (SBP) dairy manure, has neither been characterized in detail nor defined in terms of its N supply. We measured physical characteristics, nutrient c
Publikováno v:
Precision Agriculture. 10:45-62
The chlorophyll meter (CM) has been commonly used for in-season nitrogen (N) management of corn (Zea mays L.). Nevertheless, it has limited potential for site-specific N management in large fields due to difficulties in using it to generate N status
Publikováno v:
Soil Science Society of America Journal. 71:145-154
Soil organic carbon (SOC) in agroecosystems is regulated by crop rotation and soil disturbance. We assessed crop sequence and tillage effects on SOC dynamics and storage using natural 13 C abundance of corn (Zea mays L.) and soybean [Glycine max (L.)
Autor:
Gyles W. Randall
Publikováno v:
Nitrogen in Crop Production
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9848f448ea37d41e85915f37a6285731
https://doi.org/10.2134/1990.nitrogenincropproduction.c34
https://doi.org/10.2134/1990.nitrogenincropproduction.c34
Publikováno v:
Fertilizer Technology and Use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::712c23d3181d1998a57be5fa540ec1fa
https://doi.org/10.2136/1985.fertilizertechnology.c15
https://doi.org/10.2136/1985.fertilizertechnology.c15
Publikováno v:
Nitrogen in Agricultural Systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e3872cf05d1bb4a3516e2ac0569cf4f
https://doi.org/10.2134/agronmonogr49.c23
https://doi.org/10.2134/agronmonogr49.c23
Autor:
Jeffrey A. Vetsch, Gyles W. Randall
Publikováno v:
Agronomy Journal. 97:472-478
Nitrogen management strategies that affect corn (Zea mays L.) production and loss of NO 3 -N to subsurface, tile drainage often include decisions of when to apply N (fall or spring) and whether to use a nitrification inhibitor. A field study was cond