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| 1 | Spectral reflectance response to nitrogen fertilization in field grown corn显示文摘This study was carried out to analyze the spectral reflectance response of different nitrogen levels for corn crops.Four different nitrogen treatments of 0%,80%,100%and 120%BMP(best management practice)were studied.Principal component analysis-loading(PCA-loading)was used to identify the effective wavelengths.Partial least squares(PLS)and multiple linear regression(MLR)models were built to predict different nitrogen values.Vegetation indices(VIs)were calculated and then used to build more prediction models.Both full and selected wavelengths-based models showed similar prediction trends.The overall PLS model obtained the coefficient of determination(R^(2))of 0.6535 with a root mean square error(RMSE)of 0.2681 in the prediction set.The selected wavelengths for overall MLR model obtained the R^(2) of 0.6735 and RMSE of 0.3457 in the prediction set.The results showed that the wavelengths in visible and near infrared region(350-1000 nm)performed better than the two either spectral regions(1001-1350/1425-1800 nm and 2000-2400 nm).For each data set,the wavelengths around 555 nm and 730 nm were identified to be the most important to predict nitrogen rates.The vogelmann red edge index 2(VOG 2)performed the best among all VIs.It demonstrated that spectral reflectance has the potential to be used for analyzing nitrogen response in corn. | Chuanqi Xie Ce Yang Alexander Hummel Jr Gregg A Johnson Forrest T Izuno | 2018 | International Journal of Agricultural and Biological Engineering2018，11，4： | 2 |
| 2 | Trying to lose weight, losing weight, and 9-year mortality in over- weight US adults with diabetes显示文摘 | GREGG E W GERZOFF R B THOMPSON T J | 2004 | Diabetes Care2004，，： | 1 |
| 3 | Developmental stage, light and foliage removal affect flowering and bulb weight of Easter lily 显示文摘 | WANG Y T GREGG L L | 1992 | HortScience1992，27，7： | 1 |
| 4 | Education changes Mexi- can nurses' knowledge and attitudes regarding pediatric pain显示文摘 | Huth M M Gregg T L Lin L | 2010 | Pain Managet Nurs2010，11，4： | 1 |
| 5 | Direct measurement of ether congeners 显示文摘 | Eric B Sheryl A T Gregg T T | 2003 | Chemosphere2003，51，： | 1 |
| 6 | Engineered Biofilter for Removing Organic Contaminants in Air显示文摘 | Liu P K T R L Gregg | 1994 | Air & Waste Management Association1994，44，4： | 1 |
| 7 | Aging results in reduced epidermal growth factor receptor signaling, diminished olfac- tory neurogenesis, and deficits in t'me olfactory discrimina- tion 显示文摘 | Enwere E Shingo T Gregg C | 2004 | J Neurosci2004，24，38： | 1 |
| 8 | IBM S/390 parallel enterprise server G5 fault tolerance: A historical perspective 显示文摘 | L Spainhower T A Gregg | 1999 | IBM Journal of Research and Development1999，43，56： | 1 |
| 9 | An in Vitro Study Comparing a Peripherally Inserted Central Catheter to a Conventional Central Venous Catheter: No Difference in Static and Dynamic Pressure Transmission显示文摘 | Latham H E Dwyer T T Gregg B L | 2010 | BMC Anesthesiol2010，10，18： | 1 |
| 10 | IBM S/390 parallel enterprise server G5 fault tolerance:a historical perspective显示文摘 | Spainhower L Gregg T A | 1999 | IBM Journal of Re-search and Development1999，43，56： | 1 |
| 11 | Urbanization effects on tree growth in the vicinity of New York City显示文摘 | Gregg J W Jones C G Dawson T E | 2003 | Nature2003，42，4： | 1 |
| 12 | Targetted correction of a mutant HPRT gene in mouse embryonic stem cells 显示文摘 | DOETSCHMAN T GREGG R G MAEDA N | 1987 | Nature1987，330，： | 1 |
| 13 | Characterization of Aplysia charboxy peptidase E显示文摘 | Shailaja J Xuemo F Gregg T | 1997 | FEBS Letters1997，408，： | 1 |
| 14 | Comparison of the adsorption of N2 on Ru(109) and Ru(001)-a detailed look at the role of atomic step and terrace sites显示文摘 | Morgan Jr Gregg A Sorescu Dan C Yates Jr John T | 2007 | Surface Science2007，601，： | 1 |
| 15 | Developmental stage, light, and foliage removal affect flowering and bulb weight of Easter lily 显示文摘 | WANG Y T GREGG L L | 1992 | HortScience1992，27，7： | 1 |
| 16 | Aging results in reduced epidermal growth factor receptor signaling, diminished olfactory neurogenesis, and deficits in fine olfactory discrimination 显示文摘 | Enwere E Shingo T Gregg C | 2004 | J Neurosci2004，24，38： | 1 |
| 17 | BROMINATED AND CHLORINATED FLAME RETARDANTS IN LAKE ONTARIO, CANADA, LAKE TROUT (SALVELINUS NAMAYCUSH) BETWEEN 1979 AND 2004 AND POSSIBLE INFLUENCES OF FOOD-WEB CHANGES显示文摘 | Ismail Nargis Gewurtz Sarah B Pleskach Kerri Whittle D Michael Helm Paul A Marvin Chris H Tomy Gregg T | 2009 | Environmental Toxicology and Chemistry2009，，5： | 1 |
| 18 | Continuous epidural bu- torphanol relieves pruritus associated with epidural morphine in- fusions in children显示文摘 | Gunter J B McAuliffe J Gregg T | 2000 | Paediatr Anaesth2000，10，2： | 1 |
| 19 | Inhibition of the respiration of cultured mammalian cells by oligomycin显示文摘 | Currie W D Gregg C T | 1965 | Biochem Biophys Res Commun1965，21，1： | 1 |
| 20 | Aging results in reduced epidermal growth factor receptor signaling, diminished olfactory neurogenesis, and deficits in fine olfactory discrimi- nation显示文摘 | ENWERE E SHINGO T GREGG C | 2004 | The Journal of Neuroscience: the Official Journal of the Society for Neuroscience2004，24，38： | 1 |
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