Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ravi P. Sripada"'
Autor:
Ravi P. Sripada, Shalamar D. Armstrong, Lía B. Olmedo Pico, Tony J. Vyn, Sarah M. Mueller, Heather R. Pasley
Publikováno v:
Communications in Soil Science and Plant Analysis. 49:2053-2063
Soil sampling may be used as a decision-making tool for late-vegetative stage nitrogen (N) fertilizer applications in corn (Zea mays L.). Recommended sampling strategies following banded fertilizer...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::366e162032136fe98800a300f5f545bb
https://doi.org/10.1080/00103624.2018.1495728
https://doi.org/10.1080/00103624.2018.1495728
Publikováno v:
Field Crops Research. 120:94-101
An active crop canopy reflectance sensor could be used to increase N-use efficiency in maize (Zea mays L.), if temporal and spatial variability in soil N availability and plant demand are adequately accounted for with an in-season N application. Our
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2178645310aa17a17d1e2d6540a5a28a
https://doi.org/10.1016/j.fcr.2010.09.005
https://doi.org/10.1016/j.fcr.2010.09.005
Publikováno v:
Soil Science Society of America Journal. 75:306-316
Understanding the interaction between yield response to N and other growth-limiting factors is essential to improving spatially dependent N fertilizer applications. Our objective was to evaluate the impact of soil moisture variability on the economic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::397f59c3eea54329d60b81697ce99ae4
https://doi.org/10.2136/sssaj2010.0184
https://doi.org/10.2136/sssaj2010.0184
Autor:
Ravi P. Sripada, Randy Weisz
Publikováno v:
Crop Management. 8:1-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd40ef450fe0aac6209fa6743a961d01
https://doi.org/10.1094/cm-2009-0224-01-rs
https://doi.org/10.1094/cm-2009-0224-01-rs
Publikováno v:
Agronomy Journal. 100:1553-1561
With the increasing cost of fertilizer N, there is a renewed emphasis on developing new technologies for quantifying in-season N requirements for corn (Zea mays L.). The objectives of this research are (i) to evaluate different vegetative indices der
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c133eb9df3c001fee58504473421e2e
https://doi.org/10.2134/agronj2008.0017
https://doi.org/10.2134/agronj2008.0017
Autor:
Ravi P. Sripada, Ronnie W. Heiniger, Jared D. Williams, Jeffrey G. White, David A. Crouse, Carl R. Crozier
Publikováno v:
Soil Science Society of America Journal. 71:735-744
An accurate and quick soil N test is needed for N fertilizer recommendations for corn (Zea mays L.) for the humid southeastern USA. The Illinois soil N test (ISNT) has been used to distinguish fertilizer-responsive from unresponsive sites in Illinois
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84e361c7b1818dc466e3e4747d030dab
https://doi.org/10.2136/sssaj2006.0135
https://doi.org/10.2136/sssaj2006.0135
Publikováno v:
Agronomy Journal. 99:511-520
In the southeastern USA, soft red winter wheat (Triticum aestivum L.) N fertilizer recommendations are based on growth stage (GS) 30 tissue testing and models that assume that the relationship between tissue N concentration (Neon) and optimum N ferti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::041b6de68d7e3f7ffeea1ec1b0545d2a
https://doi.org/10.2134/agronj2006.0112
https://doi.org/10.2134/agronj2006.0112
Publikováno v:
Soil Science Society of America Journal. 71:171-180
Environmental concerns about increasing NO 3 levels in watersheds in North Carolina and elsewhere indicate the need for better N fertilizer management. Nitrate levels might be reduced if N rates could be adjusted based on field- or site-specific know
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6461d19e6954803bb591b8cd70b9856a
https://doi.org/10.2136/sssaj2006.0057
https://doi.org/10.2136/sssaj2006.0057
Publikováno v:
Agronomy Journal. 98:968-977
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbdf88175d0f43b7cb668cddc7e68206
https://doi.org/10.2134/agronj2005.0200
https://doi.org/10.2134/agronj2005.0200
Publikováno v:
Crop Management. 5:1-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f1f5249db07f8451991dfda8e57d1a6
https://doi.org/10.1094/cm-2006-0405-01-rs
https://doi.org/10.1094/cm-2006-0405-01-rs