J. P. Goffart, F. Ben Abdallah, D. Goffart, Y. Curnel & V. Planchon. (2023) Potato Crop Nitrogen Status Monitoring for Sustainable N Fertilisation Management: Last 15 Years and Future-Expected Developments with Reference Method and Use of Optical Sensors. Potato Research 66:4, pages 1257-1303.
Crossref
Y. Wang, L. Suarez, T. Poblete, V. Gonzalez-Dugo, D. Ryu & P.J. Zarco-Tejada. (2022) Evaluating the role of solar-induced fluorescence (SIF) and plant physiological traits for leaf nitrogen assessment in almond using airborne hyperspectral imagery. Remote Sensing of Environment 279, pages 113141.
Crossref
Rafa Tasnim, Lily Calderwood, Brogan Tooley, Lu Wang & Yong-Jiang Zhang. (2022) Are Foliar Fertilizers Beneficial to Growth and Yield of Wild Lowbush Blueberries?. Agronomy 12:2, pages 470.
Crossref
Waldemar Zielewicz, Barbara Wróbel, Piotr Szulc, Henryk Bujak & Barbara Stachowiak. (2021) By-Plant Prediction of Dry Matter Yields at Various Growth Stages of Maize Plants (Zea mays L.) Using Leaf Greenness Indicator in Climatic Conditions of Poland. Applied Sciences 11:20, pages 9513.
Crossref
Xavier A. Phillips, Yuba R. Kandel & Daren S. Mueller. (2021) Impact of Foliar Fungicides on Frogeye Leaf Spot Severity, Radiation Use Efficiency and Yield of Soybean in Iowa. Agronomy 11:9, pages 1785.
Crossref
Rui Dong, Yuxin Miao, Xinbing Wang, Zhichao Chen & Fei Yuan. (2021) Improving maize nitrogen nutrition index prediction using leaf fluorescence sensor combined with environmental and management variables. Field Crops Research 269, pages 108180.
Crossref
Sudeep Singh Sidhu, David L. Wright, Sheeja George & Ian Small. (2021) Nitrogen calibration strip: An on‐farm tool to further reduce N requirements in cotton on an integrated crop‐livestock rotation system. Agronomy Journal 113:4, pages 3615-3627.
Crossref
Jie Li, Yuehua Feng, Xiaoke Wang, Jinfeng Peng, Dinghua Yang, Guiling Xu, Qiangxin Luo, Lingli Wang, Da Ou & Wei Su. (2020) Stability and applicability of the leaf value model for variable nitrogen application based on SPAD value in rice. PLOS ONE 15:6, pages e0233735.
Crossref
Haixia Qi, Bingyu Zhu, Lingxi Kong, Weiguang Yang, Jun Zou, Yubin Lan & Lei Zhang. (2020) Hyperspectral Inversion Model of Chlorophyll Content in Peanut Leaves. Applied Sciences 10:7, pages 2259.
Crossref
Yibo Li, He Song, Li Zhou, Zhenzhu Xu & Guangsheng Zhou. (2019) Vertical distributions of chlorophyll and nitrogen and their associations with photosynthesis under drought and rewatering regimes in a maize field. Agricultural and Forest Meteorology 272-273, pages 40-54.
Crossref
Marston Héracles Domingues Franceschini, Harm Bartholomeus, Dirk Frederik van Apeldoorn, Juha Suomalainen & Lammert Kooistra. (2019) Feasibility of Unmanned Aerial Vehicle Optical Imagery for Early Detection and Severity Assessment of Late Blight in Potato. Remote Sensing 11:3, pages 224.
Crossref
Yibo Li, He Song, Li Zhou, Zhenzhu Xu & Guangsheng Zhou. (2019) Tracking chlorophyll fluorescence as an indicator of drought and rewatering across the entire leaf lifespan in a maize field. Agricultural Water Management 211, pages 190-201.
Crossref
Martina Corti, Daniele Cavalli, Giovanni Cabassi, Pietro Marino Gallina & Luca Bechini. (2018) Does remote and proximal optical sensing successfully estimate maize variables? A review. European Journal of Agronomy 99, pages 37-50.
Crossref
Xiaochen Zou, Iina Haikarainen, Iikka Haikarainen, Pirjo Mäkelä, Matti Mõttus & Petri Pellikka. (2018) Effects of Crop Leaf Angle on LAI-Sensitive Narrow-Band Vegetation Indices Derived from Imaging Spectroscopy. Applied Sciences 8:9, pages 1435.
Crossref
Ángel Maresma, Jaume Lloveras & José Martínez-Casasnovas. (2018) Use of Multispectral Airborne Images to Improve In-Season Nitrogen Management, Predict Grain Yield and Estimate Economic Return of Maize in Irrigated High Yielding Environments. Remote Sensing 10:4, pages 543.
Crossref
Washington Bravo, Ramon G. Leon, Jason A. Ferrell, Michael J. Mulvaney & C. Wesley Wood. (2017)
Evolutionary Adaptations of Palmer Amaranth (
Amaranthus palmeri
) to Nitrogen Fertilization and Crop Rotation History Affect Morphology and Nutrient-Use Efficiency
. Weed Science 66:2, pages 180-189.
Crossref
Ben Zhao, Syed Tahir Ata-Ul-Karim, Zhandong Liu, Jiyang Zhang, Junfu Xiao, Zugui Liu, Anzhen Qin, Dongfeng Ning, Qiuxia Yang, Yonghui Zhang & Aiwang Duan. (2018) Simple Assessment of Nitrogen Nutrition Index in Summer Maize by Using Chlorophyll Meter Readings. Frontiers in Plant Science 9.
Crossref
M.S. Borhan, S. Panigrahi, M.A. Satter & H. Gu. (2017) Evaluation of computer imaging technique for predicting the SPAD readings in potato leaves. Information Processing in Agriculture 4:4, pages 275-282.
Crossref
Péter Kovács & Tony J. Vyn. (2017) Relationships between Ear‐Leaf Nutrient Concentrations at Silking and Corn Biomass and Grain Yields at Maturity. Agronomy Journal 109:6, pages 2898-2906.
Crossref
E. Martínez, A. Maresma, A. Biau, S. Cela, P. Berenguer, F. Santiveri, A. Michelena & J. Lloveras. (2017) Long‐Term Effects of Mineral Nitrogen Fertilizer on Irrigated Maize and Soil Properties. Agronomy Journal 109:5, pages 1880-1890.
Crossref
Yi Peng, Aoli Zeng, Tinge Zhu, Shenghui Fang, Yan Gong, Yanqi Tao, Ying Zhou & Kan Liu. (2017) Using remotely sensed spectral reflectance to indicate leaf photosynthetic efficiency derived from active fluorescence measurements. Journal of Applied Remote Sensing 11:2, pages 026034.
Crossref
Washington Bravo, Ramon G. Leon, Jason A. Ferrell, Michael J. Mulvaney & C. Wesley Wood. (2017)
Differentiation of Life-History Traits among Palmer Amaranth Populations (
Amaranthus palmeri
) and Its Relation to Cropping Systems and Glyphosate Sensitivity
. Weed Science 65:3, pages 339-349.
Crossref
Antonella Pasqualone, Carmine Summo, Isabella Centomani, Giovanni Lacolla, Gianraffaele Caranfa & Giovanna Cucci. (2017) Effect of composted sewage sludge on morpho-physiological growth parameters, grain yield and selected functional compounds of barley. Journal of the Science of Food and Agriculture 97:5, pages 1502-1508.
Crossref
Syed Tahir Ata-Ul-Karim, Qiang Cao, Yan Zhu, Liang Tang, Muhammad Ishaq Asif Rehmani & Weixing Cao. (2016) Non-destructive Assessment of Plant Nitrogen Parameters Using Leaf Chlorophyll Measurements in Rice. Frontiers in Plant Science 7.
Crossref
Anne-Sophie Bouchet, Anne Laperche, Christine Bissuel-Belaygue, Rod Snowdon, Nathalie Nesi & Andreas Stahl. (2016) Nitrogen use efficiency in rapeseed. A review. Agronomy for Sustainable Development 36:2.
Crossref
Wei Hu, Wenqing Zhao, Jiashuo Yang, Derrick M. Oosterhuis, Dimitra A. Loka & Zhiguo Zhou. (2016) Relationship between potassium fertilization and nitrogen metabolism in the leaf subtending the cotton ( Gossypium hirsutum L.) boll during the boll development stage. Plant Physiology and Biochemistry 101, pages 113-123.
Crossref
A Abunyewa Akwasi, B Ferguson Richard, S Wortmann Charles & C Mason Stephen. (2016) Grain sorghum leaf reflectance and nitrogen status. African Journal of Agricultural Research 11:10, pages 825-836.
Crossref
Krishna P. Woli, Matthew J. Boyer, Roger W. Elmore, John E. Sawyer, Lori J. Abendroth & Daniel W. Barker. (2016) Corn Era Hybrid Response to Nitrogen Fertilization. Agronomy Journal 108:2, pages 473-486.
Crossref
George Y. Mahama, P. V. Vara Prasad, Kraig L. Roozeboom, Jesse B. Nippert & Charles W. Rice. (2016) Cover Crops, Fertilizer Nitrogen Rates, and Economic Return of Grain Sorghum. Agronomy Journal 108:1, pages 1-16.
Crossref
Giulio Testa, Amedeo Reyneri & Massimo Blandino. (2016) Maize grain yield enhancement through high plant density cultivation with different inter-row and intra-row spacings. European Journal of Agronomy 72, pages 28-37.
Crossref
Chang Yu Sen, Chung Yu Shian & Kuo Yu Jen. (2015) Use of a portable chlorophyll meter to evaluate leaf Nitrogen status of tropical carpet grass. African Journal of Agricultural Research 10:52, pages 4778-4782.
Crossref
Chang Yu Sen, Chung Yu Shian & Kuo Yu Jen. (2015) Prediction of leaf N in centipedegrass by a chlorophyll meter. African Journal of Agricultural Research 10:38, pages 3726-3730.
Crossref
R. CASA, F. CASTALDI, S. PASCUCCI & S. PIGNATTI. (2014) Chlorophyll estimation in field crops: an assessment of handheld leaf meters and spectral reflectance measurements. The Journal of Agricultural Science 153:5, pages 876-890.
Crossref
Manjeet Singh, Rajneesh Kumar, Ankit Sharma, Bhupinder Singh & S. K. Thind. (2015) Calibration and Algorithm Development for Estimation of Nitrogen in Wheat Crop Using Tractor Mounted N-Sensor. The Scientific World Journal 2015, pages 1-12.
Crossref
Miguel S. Torino, Brenda V. Ortiz, John P. Fulton, Kipling S. Balkcom & C. Wesley Wood. (2014) Evaluation of Vegetation Indices for Early Assessment of Corn Status and Yield Potential in the Southeastern United States. Agronomy Journal 106:4, pages 1389-1401.
Crossref
Krishna P. Woli, Fabián G. Fernández, John E. Sawyer, Joshua D. Stamper, David B. Mengel, Daniel W. Barker & Mark H. Hanna. (2014) Agronomic Comparison of Anhydrous Ammonia Applied with a High Speed‐Low Draft Opener and Conventional Knife Injection in Corn. Agronomy Journal 106:3, pages 881-892.
Crossref
Bao‐Luo Ma, Tian‐Yun Wu & Jiali Shang. (2013) On‐farm comparison of variable rates of nitrogen with uniform application to maize on canopy reflectance, soil nitrate, and grain yield. Journal of Plant Nutrition and Soil Science 177:2, pages 216-226.
Crossref
Nand Fageria. 2013. Mineral Nutrition of Rice. Mineral Nutrition of Rice
105
190
.
Qing Wen Zhang, Zheng Li Yang, Ai Ping Zhang & Ming Wang. (2013) Responses of Rice (<i>Oryza sativa</i> L.) Nitrogen Status Indicators to Nitrogen Rates during the Different Rice Growth Stages. Advanced Materials Research 726-731, pages 4411-4417.
Crossref
Tanya E. Cheeke, Mitchell B. Cruzan & Todd N. Rosenstiel. (2013) Field Evaluation of Arbuscular Mycorrhizal Fungal Colonization in Bacillus thuringiensis Toxin-Expressing (Bt) and Non-Bt Maize. Applied and Environmental Microbiology 79:13, pages 4078-4086.
Crossref
Naoya Sawaki, Ryoma Tsujimoto, Mikao Shigyo, Mineko Konishi, Seiichi Toki, Toru Fujiwara & Shuichi Yanagisawa. (2013) A Nitrate-Inducible GARP Family Gene Encodes an Auto-Repressible Transcriptional Repressor in Rice. Plant and Cell Physiology 54:4, pages 506-517.
Crossref
Hongguang Cai, Qun Chu, Lixing Yuan, Jianchao Liu, Xiaohui Chen, Fanjun Chen, Guohua Mi & Fusuo Zhang. (2011) Identification of quantitative trait loci for leaf area and chlorophyll content in maize (Zea mays) under low nitrogen and low phosphorus supply. Molecular Breeding 30:1, pages 251-266.
Crossref
J. Lofton, B. S. Tubana, Y. Kanke, J. Teboh & H. Viator. (2012) Predicting Sugarcane Response to Nitrogen Using a Canopy Reflectance‐Based Response Index Value. Agronomy Journal 104:1, pages 106-113.
Crossref
Paolo Menesatti, Federico Pallottino, Francesca Antonucci, Giancarlo Roccuzzo, Francesco Intrigliolo & Corrado Costa. 2012. Advances in Citrus Nutrition. Advances in Citrus Nutrition
113
123
.
Valentina Ulissi, Francesca Antonucci, Paolo Benincasa, Michela Farneselli, Giacomo Tosti, Marcello Guiducci, Francesco Tei, Corrado Costa, Federico Pallottino, Luigi Pari & Paolo Menesatti. (2011) Nitrogen Concentration Estimation in Tomato Leaves by VIS-NIR Non-Destructive Spectroscopy. Sensors 11:6, pages 6411-6424.
Crossref
D. A. Ruiz Diaz, J. E. Sawyer & A. P. Mallarino. (2011) On-Farm Evaluation of Poultry Manure as a Nitrogen Source for Corn. Soil Science Society of America Journal 75:2, pages 729-737.
Crossref
Noura Ziadi, Gilles Bélanger, Annie Claessens, Louis Lefebvre, Nicolas Tremblay, Athyna N. Cambouris, Michel C. Nolin & Léon-Étienne Parent. (2010) Plant-Based Diagnostic Tools for Evaluating Wheat Nitrogen Status. Crop Science 50:6, pages 2580-2590.
Crossref
Huan YU, Hua-Song WU & Zhi-Jie WANG. (2010) Evaluation of SPAD and Dualex for In-Season Corn Nitrogen Status Estimation. ACTA AGRONOMICA SINICA 36:5, pages 840-847.
Crossref
Huan YU, Hua-Song WU & Zhi-Jie WANG. (2010) Evaluation of SPAD and Dualex for In-Season Corn Nitrogen Status Estimation. Acta Agronomica Sinica 36:5, pages 840-847.
Crossref
Duli Zhao, David L. Wright, James J. Marois, Cheryl L. Mackowiak & Meghan Brennan. (2010) Improved growth and nutrient status of an oat cover crop in sod-based versus conventional peanut-cotton rotations. Agronomy for Sustainable Development 30:2, pages 497-504.
Crossref
Huan Yu, Nicolas Tremblay, Zhijie Wang, Carl Bélec, Gaihe Yang & Cynthia Grant. (2010) Evaluation of Nitrogen Sources and Application Methods for Nitrogen‐Rich Reference Plot Establishment in Corn. Agronomy Journal 102:1, pages 23-30.
Crossref
Stanislaw Marek Samborski, Nicolas Tremblay & Edith Fallon. (2009) Strategies to Make Use of Plant Sensors‐Based Diagnostic Information for Nitrogen Recommendations. Agronomy Journal 101:4, pages 800-816.
Crossref
Peter C. Scharf & John A. Lory. (2009) Calibrating Reflectance Measurements to Predict Optimal Sidedress Nitrogen Rate for Corn. Agronomy Journal 101:3, pages 615-625.
Crossref
Nicolas Tremblay, Zhijie Wang, Bao-Luo Ma, Carl Belec & Philippe Vigneault. (2008) A comparison of crop data measured by two commercial sensors for variable-rate nitrogen application. Precision Agriculture 10:2, pages 145-161.
Crossref
D. A. Ruiz Diaz, J. A. Hawkins, J. E. Sawyer & J. P. Lundvall. (2008) Evaluation of In‐Season Nitrogen Management Strategies for Corn Production. Agronomy Journal 100:6, pages 1711-1719.
Crossref
Simone Graeff, Judit Pfenning, Wilhelm Claupein & Hans-Peter Liebig. (2008)
Evaluation of Image Analysis to Determine the N-Fertilizer Demand of Broccoli Plants (
Brassica oleracea
convar.
botrytis
var.
italica
)
. Advances in Optical Technologies 2008, pages 1-8.
Crossref
Richard H. Fox & Charles L. Walthall. 2008. Nitrogen in Agricultural Systems. Nitrogen in Agricultural Systems
647
674
.
J. J. Meisinger, J. S. Schepers & W. R. Raun. 2008. Nitrogen in Agricultural Systems. Nitrogen in Agricultural Systems
563
612
.
Jun Zhang, Alfred M. Blackmer, Jason W. Ellsworth & Kenneth J. Koehler. (2008) Sensitivity of Chlorophyll Meters for Diagnosing Nitrogen Deficiencies of Corn in Production Agriculture. Agronomy Journal 100:3, pages 543-550.
Crossref
D. L. Rowland, R. B. Sorensen, C. L. Butts, W. H. Faircloth & D. G. Sullivan. (2008) Canopy Characteristics and their Ability to Predict Peanut Maturity. Peanut Science 35:1, pages 43-54.
Crossref
N.R. Kitchen, K.W.T. Goulding & J.F. Shanahan. 2008. Nitrogen in the Environment. Nitrogen in the Environment
483
517
.
Lorène Prost & Marie-Hélène Jeuffroy. (2007) Replacing the nitrogen nutrition index by the chlorophyll meter to assess wheat N status. Agronomy for Sustainable Development 27:4, pages 321-330.
Crossref
J. A. Hawkins, J. E. Sawyer, D. W. Barker & J. P. Lundvall. (2007) Using Relative Chlorophyll Meter Values to Determine Nitrogen Application Rates for Corn. Agronomy Journal 99:4, pages 1034-1040.
Crossref
Esteban R. Loria, John E. Sawyer, Daniel W. Barker, John P. Lundvall & Jeffery C. Lorimor. (2007) Use of Anaerobically Digested Swine Manure as a Nitrogen Source in Corn Production. Agronomy Journal 99:4, pages 1119-1129.
Crossref
W. A. J. M. De Costa, W. M. W. Weerakoon, K. G. R. Chinthaka, H. M. L. K. Herath & R. M. I. Abeywardena. (2007) Genotypic Variation in the Response of Rice (Oryza sativa L.) to Increased Atmospheric Carbon Dioxide and its Physiological Basis. Journal of Agronomy and Crop Science 193:2, pages 117-130.
Crossref
B. L. Ma, K. D. Subedi & T. Q. Zhang. (2007) Pre‐Sidedress Nitrate Test and Other Crop‐Based Indicators for Fresh Market and Processing Sweet Corn. Agronomy Journal 99:1, pages 174-183.
Crossref
Jason K. Kruse, Nick E. Christians & Michael H. Chaplin. (2006) Remote Sensing of Nitrogen Stress in Creeping Bentgrass. Agronomy Journal 98:6, pages 1640-1645.
Crossref
José Lavres Junior & Francisco Antonio Monteiro. (2006) Diagnose nutricional de nitrogênio no capim-aruana em condições controladas. Revista Brasileira de Ciência do Solo 30:5, pages 829-837.
Crossref
Yoshihito Sunaga, Hisatomi Harada, Tahei Kawachi, Tetsuya Hatanaka & Munehiro Ebato. (2006) Simple technique for estimating nitrate nitrogen concentration of Italian ryegrass (Lolium multiflorum Lam.) at the heading stage using a chlorophyll meter. Grassland Science 52:3, pages 133-140.
Crossref
Marianne Le Bail, Marie-Hélène Jeuffroy, Christine Bouchard & Aude Barbottin. (2005) Is it possible to forecast the grain quality and yield of different varieties of winter wheat from Minolta SPAD meter measurements?. European Journal of Agronomy 23:4, pages 379-391.
Crossref
Hans‐Werner Olfs, Klaus Blankenau, Frank Brentrup, Jörg Jasper, Axel Link & Joachim Lammel. (2005) Soil‐ and plant‐based nitrogen‐fertilizer recommendations in arable farming. Journal of Plant Nutrition and Soil Science 168:4, pages 414-431.
Crossref
M. T. Rashid & R. P. Voroney. (2005) Predicting Nitrogen Requirements for Corn Grown on Soils Amended with Oily Food Waste. Soil Science Society of America Journal 69:4, pages 1256-1265.
Crossref
H. H. Ratnayaka & D. Kincaid. (2005)
Gas Exchange and Leaf Ultrastructure of Tinnevelly Senna,
Cassia angustifolia
, under Drought and Nitrogen Stress
. Crop Science 45:3, pages 840-847.
Crossref
B. L. Ma, K. D. Subedi & C. Costa. (2005) Comparison of Crop‐Based Indicators with Soil Nitrate Test for Corn Nitrogen Requirement. Agronomy Journal 97:2, pages 462-471.
Crossref
W. R. Raun, J. B. Solie, M. L. Stone, D. L. Zavodny, K. L. Martin & K. W. Freeman. (2005) AUTOMATED CALIBRATION STAMP TECHNOLOGY FOR IMPROVED IN‐SEASON NITROGEN FERTILIZATION. Agronomy Journal 97:1, pages 338-342.
Crossref
Joseph C. Cordes, William G. Johnson, Peter Scharf & Reid J. Smeda. (2017)
Late-Emerging Common Waterhemp (
Amaranthus rudis
) Interference in Conventional Tillage Corn
. Weed Technology 18:4, pages 999-1005.
Crossref
Gilber Argenta, Paulo Regis Ferreira da Silva & Luis Sangoi. (2004) Leaf relative chlorophyll content as an indicator parameter to predict nitrogen fertilization in maize. Ciência Rural 34:5, pages 1379-1387.
Crossref
Simone Graeff, Wilhelm Claupein, Diedrich Steffens & Sven Schubert. 2004. Digital Imaging and Spectral Techniques: Applications to Precision Agriculture and Crop Physiology. Digital Imaging and Spectral Techniques: Applications to Precision Agriculture and Crop Physiology
53
62
.
John J. Read, Eric L. Whaley, Lee Tarpley & K. Raja Reddy. 2004. Digital Imaging and Spectral Techniques: Applications to Precision Agriculture and Crop Physiology. Digital Imaging and Spectral Techniques: Applications to Precision Agriculture and Crop Physiology
177
195
.
Kenan Diker & Walter C Bausch. (2003) Radiometric Field Measurements of Maize for estimating Soil and Plant Nitrogen. Biosystems Engineering 86:4, pages 411-420.
Crossref
Mahmoud M. Shaaban, Mostafa A. El-Nabaraw & El-Zanaty A.A. Abou .. (2002) Evaluation of Magnesium and Iron Nutritional Status in Some Monocot and Dicot Crop Plants Using a Portable Chlorophyll Meter. Pakistan Journal of Biological Sciences 5:10, pages 1014-1016.
Crossref
Dana L. Dinnes, Douglas L. Karlen, Dan B. Jaynes, Thomas C. Kaspar, Jerry L. Hatfield, Thomas S. Colvin & Cynthia A. Cambardella. (2002) Nitrogen Management Strategies to Reduce Nitrate Leaching in Tile‐Drained Midwestern Soils. Agronomy Journal 94:1, pages 153-171.
Crossref
Mohammad PessarakliFred Below. 2001. Handbook of Plant and Crop Physiology. Handbook of Plant and Crop Physiology.
Gilber Argenta, Paulo Regis Ferreira da Silva & Clayton Giani Bortolini. (2001) Clorofila na folha como indicador do nível de nitrogênio em cereais. Ciência Rural 31:4, pages 715-722.
Crossref
Stella A. Ennin & Max D. Clegg. (2001) Effect of Soybean Plant Populations in a Soybean and Maize Rotation. Agronomy Journal 93:2, pages 396-403.
Crossref
N.R. Kitchen & K.W.T. Goulding. 2001. Nitrogen in the Environment: Sources, Problems and Management. Nitrogen in the Environment: Sources, Problems and Management
335
369
.
J.J Schröder, J.J Neeteson, O Oenema & P.C Struik. (2000) Does the crop or the soil indicate how to save nitrogen in maize production?. Field Crops Research 66:2, pages 151-164.
Crossref
Mahmoud M Shaahan, A.A El-Sayed & E.A.A Abou El-Nour. (1999) Predicting nitrogen, magnesium and iron nutritional status in some perennial crops using a portable chlorophyll meter. Scientia Horticulturae 82:3-4, pages 339-348.
Crossref
P.S Bindraban. (1999) Impact of canopy nitrogen profile in wheat on growth. Field Crops Research 63:1, pages 63-77.
Crossref
Kenan Diker & Walter C. Bausch. 1999. Proceedings of the Fourth International Conference on Precision Agriculture. Proceedings of the Fourth International Conference on Precision Agriculture
1445
1455
.
M. K. Schenk. 1998. Horticultural Reviews. Horticultural Reviews
185
223
.
J Hatfield & B StewartA Sharpley, J Meisinger, A Breeuwsma, J Sims, T Daniel & J Schepers. 1997. Animal Waste Utilization. Animal Waste Utilization
173
242
.
Gary E. Varvel, James S. Schepers & Dennis D. Francis. (1997) Chlorophyll Meter and Stalk Nitrate Techniques as Complementary Indices for Residual Nitrogen. Journal of Production Agriculture 10:1, pages 147-151.
Crossref
Sherwood B. Idso, Bruce A. Kimball & Donald L. Hendrix. (1996) Effects of atmospheric CO2 enrichment on chlorophyll and nitrogen concentrations of sour orange tree leaves. Environmental and Experimental Botany 36:3, pages 323-331.
Crossref
M. L. Stone, J. B. Solie, R. W. Whitney, W. R. Raun & H. L. Lees. Sensors for Detection of Nitrogen in Winter Wheat. Sensors for Detection of Nitrogen in Winter Wheat.
John M. JemisonJr.Jr. & David E. Lytle. (1996) Field Evaluation of Two Nitrogen Testing Methods in Maine. Journal of Production Agriculture 9:1, pages 108-113.
Crossref
Tracy M. Blackmer & James S. Schepers. (1996) Aerial Photography to Detect Nitrogen Stress in Corn. Journal of Plant Physiology 148:3-4, pages 440-444.
Crossref
J.S. Schepers, T.M. Blackmer, W.W. Wilhelm & M. Resende. (1996) Transmittance and Reflectance Measurements of CornLeaves from Plants with Different Nitrogen and Water Supply. Journal of Plant Physiology 148:5, pages 523-529.
Crossref
T. M. Blackmer, J. S. Schepers & G. E. Meyer. 1995. Site-Specific Management for Agricultural Systems. Site-Specific Management for Agricultural Systems
505
512
.
J. Peltonen, A. Virtanen & E. Haggrèn. (2008) Using a Chlorophyll Meter to Optimize Nitrogen Fertilizer Application for Intensively‐Managed Small‐Grain Cereals. Journal of Agronomy and Crop Science 174:5, pages 309-318.
Crossref
T.M. Blackmer & J.S. Schepers. (1995) Use of a Chlorophyll Meter to Monitor Nitrogen Status and Schedule Fertigation for Corn. Journal of Production Agriculture 8:1, pages 56-60.
Crossref
John Markwell, John C. Osterman & Jennifer L. Mitchell. (1995) Calibration of the Minolta SPAD-502 leaf chlorophyll meter. Photosynthesis Research 46:3, pages 467-472.
Crossref
P.J. PinterJrJr, S.B. Idso, D.L. Hendrix, R.R. Rokey, R.S. Rauschkolb, J.R. Mauney, B.A. Kimball, G.R. Hendrey, K.F. Lewin & J. Nagy. (1994) Effect of free-air CO2 enrichment on the chlorophyll content of cotton leaves. Agricultural and Forest Meteorology 70:1-4, pages 163-169.
Crossref