Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Gordon V. Johnson"'
Autor:
Gordon V. Johnson
Publikováno v:
Ground Water Quality and Agricultural Practices ISBN: 9781003069782
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d553df1df57c5a99e724f4b30549134
https://doi.org/10.1201/9781003069782-10
https://doi.org/10.1201/9781003069782-10
Autor:
W. C. Dahnke, Gordon V. Johnson
Publikováno v:
Soil Testing and Plant Analysis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69793fe769b96c6944ca2d44ac203724
https://doi.org/10.2136/sssabookser3.3ed.c6
https://doi.org/10.2136/sssabookser3.3ed.c6
Publikováno v:
BioMetals. 24:575-580
Iron metabolism in plants is essential to maintain optimal growth and iron nutrition is dependent on uptake of iron from the environment and movement of iron in the plant tissues. We have examined the translocation of iron in plant leaves following f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd56f0190fc1c2013a43c85fec7dee88
https://doi.org/10.1007/s10534-011-9408-7
https://doi.org/10.1007/s10534-011-9408-7
Autor:
Gordon V. Johnson, William R. Kneebone
Publikováno v:
Proceedings of The Third International Turfgrass Research Conference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed320f0ab3ce758dec7bc1a11904b0b7
https://doi.org/10.2135/1974.proc3rdintlturfgrass.c15
https://doi.org/10.2135/1974.proc3rdintlturfgrass.c15
Autor:
Gordon V. Johnson
Publikováno v:
Soil Testing: Sampling, Correlation, Calibration, and Interpretation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce473f492c777e5599697459f1b745fe
https://doi.org/10.2136/sssaspecpub21.c9
https://doi.org/10.2136/sssaspecpub21.c9
Autor:
Gordon V. Johnson, William R. Raun, Kefyalew Girma, R. K. Teal, Daryl B. Arnall, John B. Solie, K. L. Martin, Marvin L. Stone, K. W. Freeman
Publikováno v:
Journal of Plant Nutrition. 29:1983-1997
The use of by-plot coefficient of variation (CV) has not been evaluated in precision agricultural work. This study evaluated the relationship between CVs determined from normalized-difference vegetative index (NDVI) sensor readings, plant population,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c225423c5292d4ccce27b433fd0d2a0
https://doi.org/10.1080/01904160600927997
https://doi.org/10.1080/01904160600927997
Autor:
R. W. Mullen, James S. Schepers, K. L. Martin, William R. Raun, Hailin Zhang, Gordon V. Johnson, Marvin L. Stone, K. W. Freeman, John B. Solie
Publikováno v:
Communications in Soil Science and Plant Analysis. 36:2759-2781
Nitrogen (N) fertilization for cereal crop production does not follow any kind of generalized methodology that guarantees maximum nitrogen use efficiency (NUE). The objective of this work was to amalgamate some of the current concepts for N managemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b946e2c1a2bac064e97fbf720b1f2f05
https://doi.org/10.1080/00103620500303988
https://doi.org/10.1080/00103620500303988
Publikováno v:
Journal of Plant Nutrition. 27:1431-1441
Presently normalized difference vegetative indexes (NDVI) based on red (RNDVI) or green (GNDVI) reflectance are commonly used to evaluate plant health, biomass, and nutrient content. This study was conducted to determine which of these two indexes is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d67a91e9867a99513363b2094c20b11
https://doi.org/10.1081/pln-200025858
https://doi.org/10.1081/pln-200025858
Autor:
K. W. Freeman, C. M. Taliaferro, K. J. Wynn, R. W. Mullen, William R. Raun, Wade Everett Thomason, Gordon V. Johnson
Publikováno v:
Journal of Plant Nutrition. 27:1199-1226
Switchgrass (Panicum virgatum L.) is currently being evaluated as a raw material for producing fuel, chemicals, and electricity. Switchgrass biomass is bound by the growing environment that includes fertility. More information is needed on sustainabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8fa9942d90e2147d3fa3d615b34e93e
https://doi.org/10.1081/pln-120038544
https://doi.org/10.1081/pln-120038544
Autor:
John B. Solie, William R. Raun, Gordon V. Johnson, K. L. Martin, Marvin L. Stone, K. W. Freeman, R. W. Mullen
Publikováno v:
Journal of Plant Nutrition. 28:173-182
Knowing the exact stage of growth where expressed plant variability is at a maximum might lead to the identification of times when in-season fertilization could have the greatest impact. One field experiment was initiated to measure daily plant growt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757cfaa71e4071ce49f2b714c6fa7877
https://doi.org/10.1081/pln-200042277
https://doi.org/10.1081/pln-200042277