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Journal Articles


CAO, Q., MIAO, Y., FENG, G., GAO, X., LIU, B., LIU, Y., LI, F., KHOSLA, R., MULLA, D.J., ZHANG, F. (2017): Improving nitrogen use efficiency with minimal environmental risks using an active canopy sensor in a wheat-maize cropping system. Field Crops Research 214: 365-372.

CAO, Q., MIAO, Y., LI, F., GAO, X., LIU, B., LU, D., CHEN, X. (2017): Developing a new Crop Circle active canopy sensor-based precision nitrogen management strategy for winter wheat in North China Plain. Precision Agriculture 18(1): 2-18.

HUANG, S., MIAO, Y., CAO, Q., YAO, Y., ZHAO, G., YU, W., SHEN, J., YU, K. and BARETH, G. (2017): Critical Nitrogen Dilution Curve for Rice Nitrogen Status Diagnosis in Northeast China. Pedosphere (in press).

HUANG, S., MIAO, Y., YUAN, F., GNYP, M.L., YAO, Y., CAO, Q., WANG, H., LENZ-WIEDEMANN, V. and BARETH, G. (2017): Potential of RapidEye and WorldView-2 Satellite Data for Improving Rice Nitrogen Status Monitoring at Different Growth Stages. Remote Sensing 9(3): 227. doi: 10.3390/rs9030227

LU, J, MIAO, Y., SHI, W., LI, J., YUAN, F. (2017): Evaluating different approaches to non-destructive nitrogen status diagnosis of rice using portable RapidSCAN active canopy sensor.  Scientific Reports 7(1): 14073

ZHAO, Q., BROCKS, S., LENZ-WIEDEMANN, V., MIAO, Y., THANG, F., and BARETH, G. (2017): Detecting spatial variability of paddy rice yield by combining the DNDC model with high resolution satellite images. Agricultural Systems 152, pp.47-57. doi: 10.1016/j.agsy.2016.11.011


BARETH, G., BENDIG, J., TILLY, N., HOFFMEISTER, D., AASEN, H., and BOLTEN, A. (2016): Comparison of UAV- and TLS-derived Plant Height for Crop Monitoring: Using Polygon Grids for the Analysis of Crop Surface Models (CSMs). PFG 2016(2): 85-94. doi: 10.1127/pfg/2016/0289

BROCKS, S., BENDIG, J., and BARETH, G. (2016): Toward an automated low-cost three-dimensional crop surface monitoring system using oblique stereo imagery from consumer grade smart cameras. Journal of Applied Remote Sensing 10(4): 046021-1 - 046021-19. doi:10.1117/1.JRS.10.046021

CAO, Q., MIAO, Y., SHEN, J., YU, W., YUAN, F., CHENG, S., HUANG, S., WANG, H., YANG, W., LIU, F. (2016): Improving in-season estimation of rice yield potential and responsiveness to topdressing nitrogen application with Crop Circle active crop canopy sensor. Precision Agriculture 17:136-154.

HOFFMEISTER, D., WALDHOFF, G.; KORRES, W., CURDT, C., and BARETH, G. (2016): Crop height variability detection in a single field by multi-temporal terrestrial laserscanning. Precision Agriculture 17(3), 296-312. doi: 10.1007/s11119-015-9420-y

HÜTT, C., KOPPE, W., MIAO, Y., and BARETH, G. (2016): Best Accuracy Land Use/Land Cover (LULC) Classification to Derive Crop Types Using Multitemporal, Multisensor, and Multi-Polarization SAR Satellite Images. Remote Sensing 8(8): 684-1 - 684-15. doi:10.3390/rs8080684

XIA, T., MIAO, Y., WU, D., SHAO, D., KHOSLA, R., MI, G. (2016): Active optical sensing of spring maize for in-season diagnosis of nitrogen status based on nitrogen nutrition index. Remote Sensing 8(7): 605.

ZHANG, W., CAO, G., LI, X., ZHANG, H., WANG, C., LIU, Q., CHEN, X., CUI, Z., SHEN, J., JIANG, R., MI, G., MIAO, Y., ZHANG, F., DOU, Z. (2016): Closing yield gaps in China by empowering smallholder farmers. Nature 537: 671-674.


AASEN, H., BURKART, A., BOLTEN, A., and BARETH, G. (2015): Generating 3D hyperspectral information with lightweight UAV snapshot cameras for vegetation monitoring: From camera calibration to quality assurance. ISPRS Journal of Photogrammetry and Remote Sensing 108: 245-259.

BARETH, G., AASEN, H., BENDIG, J., GNYP, M.L., BOLTEN, A., JUNG, A., MICHELS, R., SOUKKAMÄKI, J. (2015): Low-weight and UAV-based hyperspectral full-frame cameras for monitoring crops: spectral comparison with portable spectroradiometer measurements. PFG 2015 (1): 69-79. doi: 10.1127/pfg/2015/0256

BENDIG, J., YU, K., AASEN, H., BOLTEN, A., BENNERTZ, S., BROSCHEIT, J., GNYP, M.L., and BARETH, G. (2015): Combining UAV-based Crop Surface Models, Visible and Near Infrared Vegetation Indices for Biomass Monitoring in Barley. Int. J. Appl. Earth Obs. Geoinf. 39: 79-87. doi:10.1016/j.jag.2015.02.012

BURKART, A., AASEN, H., ALONSO, L., MENZ, G., BARETH, G., and RASCHER, U. (2015): Angular dependency of hyperspectral measurements over wheat characterized by a novel UAV based goniometer. Remote Sensing 7(1): 725-746. doi: 10.3390/rs70100725

CAO, Q., MIAO, Y., FENG, G., GAO, X., LI, F., LIU, B., YUE, S., CHENG, S., KHOSLA, R., USTIN, S. L. (2015): Active canopy sensing of winter wheat nitrogen status: an evaluation of two sensor systems. Computers and Electronics in Agriculture 112: 54-67, DOI:

HUANG, S., MIAO, Y., ZHAO, G., YUAN, F., MA, X., TAN, C., YU, W., GNYP, M.L., LENZ-WIEDEMANN, V.I.S, RASCHER, U., and BARETH, G. (2015): Satellite Remote Sensing-Based In-Season Diagnosis of Rice Nitrogen Status in Northeast China. Remote Sensing 7(8), 10646-10667. doi:10.3390/rs70810646

LONGCHAMPS, L., KHOSLA, R., REICH, R. and GUI, D.W. (2015): Spatial and temporal variability of soil water content in leveled fields. Soil Science Society of America Journal 79, 1446-1454.

LONGCHAMPS, L. and KHOSLA, R. (2015): Managing In-Field Spatial Variability: Variable-rate seeding appears to be the logical way. The Fluid Journal Vol. 23, No. 3, Issue #89.

MOSHIA, M.E., KHOSLA, R., WESTFALL, D.G., DAVIS, J.G., REICH, R. and LONGCHAMPS, L. (2015): Precision Manure Management across Site-Specific Management Zones: Top Soil Quality and Environmental Impact. Commun. in Soil Science and Plant Analysis 46(2): 2235-258.

MZUKU, M., KHOSLA, R., and REICH, R. (2015): Bare Soil Reflectance to Characterize Variability in Soil Properties. Commun. in Soil Science and Plant Analysis 46(13): 1668-1676.

TILLY, N., HOFFMEISTER, D., CAO, Q., LENZ-WIEDEMANN, V., MIAO, Y. and BARETH, G. (2015): Transferability of Models for Estimating Paddy Rice Biomass from Spatial Plant Height Data. Agriculture 5(3): 538-560. doi: 10.3390/agriculture5030538

TILLY, N., AASEN, H., and BARETH, G. (2015): Fusion of plant height and vegetation indices for the estimation of barley biomass. Remote Sensing, 7(9): 11449-11480. doi:10.3390/rs70911449

YU, K., GNYP, M.L., GAO, L., MIAO, Y., CHEN, X.P., and BARETH, G. (2015): Estimate Leaf Chlorophyll of Rice Using Reflectance Indices and Partial Least Squares. PFG 2015/01, 45-54. doi: 10.1127/pfg/2015/0253

ZHAO, Q., HÜTT, C., LENZ-WIEDEMANN, V.I.S., MIAO, Y., YUAN, F., ZHANG, F., and BARETH, G. (2015): Georeferencing Multi-source Geospatial Data Using Multi-temporal TerraSAR-X Imagery: a Case Study in Qixing Farm, Northeast China. PFG 2/2015, 173–185. doi: 10.1127/pfg/2015/0262

ZHAO, Q., LENZ-WIEDEMANN, V.I.S., YUAN, F., JIANG, R., MIAO, Y., ZHANG, F., and BARETH, G. (2015): Investigating within-field variability of rice from high resolution satellite imagery in Qixing Farm County, Northeast China. ISPRS International Journal of Geo-Information 4(1), 236-261. doi:10.3390/ijgi4010236


AASEN, H., GNYP, M.L., MIAO, Y., and BARETH, G. (2014): Automated hyperspectral vegetation index retrieval from multiple correlation matrices with HyperCor. PE & RS 80(8): 785-795. doi: 10.14358/PERS.80.8.785

BENDIG, J., BOLTEN, A., BENNERTZ, S., BROSCHEIT, J., EICHFUSS, S., BARETH, G. (2014): Estimating Biomass of Barley Using Crop Surface Models (CSMs) Derived from UAV-Based RGB Imaging. Remote Sensing 6(11): 10395-10412. doi:10.3390/rs61110395

GNYP, M.L., MIAO, Y., YUAN, F., USTIN, S.L., YU, K., YAO, Y., HUANG, S. and BARETH, G. (2014): Hyperspectral canopy sensing of paddy rice aboveground biomass at different growth stages. Field Crops Research 155: 42-55. DOI: 10.1016/j.fcr.2013.09.023

GNYP, M.L., BARETH, G., LI, F., LENZ-WIEDEMANN, V., KOPPE, W., MIAO, Y., HENNIG, S.D., JIA L.L., LAUDIEN, R., CHEN, X.P., and ZHANG, F. (2014): Development and implementation of a multiscale biomass model using hyperspectral vegetation indices for winter wheat in the North China Plain.  J. Appl. Earth Observ. Geoinf. 33: 232-242. DOI: 10.1016/j.jag.2014.05.006

LI, F., MIAO, Y., FENG, G., YUAN, F., YUE, S., GAO, X.,  LIU, Y., LIU, B., USTIN, S.L., CHEN, X. (2014): Improving estimation of summer maize nitrogen status with red edge-based spectral vegetation indices. Field Crops Research 157: 111-123.

TILLY, N., HOFFMEISTER, D., CIAO, Q., HUANG, S., MIAO, Y., LENZ-WIEDEMANN, V., BARETH, G. (2014): Multi-temporal Crop Surface Models: Accurate plant height measurement and biomass estimation with terrestrial laser scanning in paddy rice. J. Applied Remote Sensing 8 (1), 083671.doi: 10.1117/1.JRS.8.083671

TURNER, D., LUCIEER, A., WALLACE, L. (2014): Direct georeferencing of ultrahigh-resolution UAV imagery. IEEE Transactions on Geoscience and Remote Sensing 52(5): 2738-2745.

YAO, Y., MIAO, Y., CAO, Q., WANG, H., GNYP, M.L., BARETH, G., KHOSLA, R., YANG, W., LIU, C. (2014) In-season estimation of rice nitrogen status with an active crop canopy sensor. Journal of Selected Topics in Applied Earth Observation and Remote Sensing (Online First), DOI: 10.1109/JSTARS.2014.2322659

YU, K., LEUFEN, G., HUNSCHE, M., NOGA, G., CHEN, X., BARETH, G. (2014): Investigation of leaf diseases and estimation of chlorophyll concentration in seven barley varieties using fluorescence and hyperspectral indices. Remote Sensing 6(1): 64-86. DOI: 10.3390/rs6010064   PDF

YU, K., CHEN, X., LENZ-WIEDEMANN, V. and BARETH, G. (2014): Estimating leaf chlorophyll of barley at different growth stages using spectral indices to reduce soil background and canopy structure effects. ISPRS Journal of Photogrammetry and Remote Sensing 97, 58-77. DOI:10.1016/j.isprsjprs.2014.08.00


BENDIG, J., BOLTEN, A., and BARETH, G. (2013): UAV-based imaging for multi-temporal, very high resolution crop surface models to monitor crop growth variability. PFG 2013/06: 551-562, DOI: 10.1127/1432-8364/2013/0200

CAO, Q., MIAO, Y., WANG, H., HUANG, S., CHENG, S., KHOSLA, R., JIANG, R. (2013): Non-destructive estimation of rice plant nitrogen status with Crop Circle multispectral active canopy sensor. Field Crops Research 154: 133-144. DOI: 10.1016/j.fcr.2013.08.005

GNYP, M.L., YU, K., AASEN, H., YAO, Y., HUANG, S., MIAO, Y. and BARETH, G. (2013): Analysis of Crop Reflectance for Estimating Biomass in Rice Canopies at Different Phenological Stages. PFG 2013/4, 351–365.

HUANG, Y., THOMSON, S.J., HOFFMANN, W.C., LAN, Y., FRITZ, K. (2013): Development and prospect of unmanned aerial vehicle technologies for agricultural production management. Int J Agric & Biol Eng 6(3): 1-10.

KOPPE, W., GNYP, M.L., HÜTT, C., YAO, Y.K., MIAO, Y., CHEN, X., and BARETH, G. (2013): Rice monitoring with multi-temporal and dual-polarimetric TerraSAR-X data . Intern. J. Appl. Earth Oserv. Geoinf. 21: 568-576. doi: 10.1016/j.jag.2012.07.016

MULLA, D. J. (2013): Twenty five years of remote sensing in precision agriculture: Key advances and remaining knowledge gaps. Biosystems Engineering 114: 358-371.

YU, K., LI, F., GNYP, M.L., MIAO, Y., BARETH, G. and CHEN, X. (2013): Remotely detecting canopy nitrogen concentration and uptake of paddy rice in the Northeast China Plain. ISPRS Journal of Photogrammetry and Remote Sensing 78: 102-115.

ZHAO, G., MIAO, Y., WANG, H., SU, M., FAN, M., ZHANG, F., JIANG, R., ZHANG, Z., LIU, C., LIU, P., Ma, D. (2013): , A preliminary precision rice management system for increasing both grain yield and nitrogen use efficiency. Field Crops Research 154: 23-30. DOI: 10.1016/j.fcr.2013.07.019


CAO, Q., CUI, Z., CHEN, X., KHOSLA, R., DAO, T.H. and MIAO, Y. (2012): Quantifying spatial variability of indigenous nitrogen supply for precision nitrogen management in small scale farming. Precision Agriculture 13: 45-61.

KOPPE, W., GNYP, M.L., HENNIG, S., LI, F., MIAO, Y.,  CHEN X., JIA, L. and BARETH, G. (2012): Multi-temporal hyperspectral and radar remote sensing for estimating winter wheat biomass in the North China Plain. PFG 2012/3: 281-298.

MULLA, D. (2012, in press): Twenty five years of remote sensing in precision agriculture: Key advances and remaining knowledge gaps. Biosystems Engineering, DOI: 10.1016/j.biosystemseng.2012.08.009

YAO, Y., MIAO, Y., HUANG, S., GAO, L., MA, X., ZHAO, G., JIANG, R., CHEN, X., ZHANG, F., KANG, Y., GNYP, M. L., BARETH, G., LIU, C., ZHAO, L., YANG, W. and ZHU, H. (2012): Active canopy sensor-based precision N management strategy for rice. Agronomy for Sustainable Development, DOI 10.1007/s13593-012-0094-9.


DAO, T., MIAO, Y. and ZHANG, F. (2011): X-ray fluorescence spectrometry-based approach to precision management of bioavailable phosphorus in soil environments. Journal of Soils and Sediments 11: 577-588.

LI, X., LI, M., CUI, D. and MIAO, Y. (2011):  Monitoring of rice plant growth in Northeast China using dual-wavebands crop growth analyzer. Transactions of the Chinese Society of Agricultural Engineering 27(8): 206–210.

MIAO, Y., STEWART, B.A., ZHANG, F. (2011): Long-term experiments for sustainable nutrient management in China. A review. Agronomy for Sustainable Development 31: 397-414.


KOPPE, W, LI, F., GNYP, M.L., MIAO, Y., JIA, L., CHEN, X., ZHANG, F. and BARETH, G. (2010): Evaluating Multispectral and Hyperspectral Satellite Remote Sensing Data for Estimating Winter Wheat Growth Parameters at Regional Scale in the North China Plain. PFG 2010/3: 167-178.

LAUDIEN, R., POFAGI, M., and ROEHRIG, J. (2010): Development and implementation of an interactive Spatial Decision Support System for decision makers in Benin to evaluate agricultural land resources - Case study: AGROLAND. International Journal of Applied Earth Observation and Geoinformation 12(S1): S38-S44.

LENZ-WIEDEMANN, V.I.S., KLAR, C.W. and SCHNEIDER, K. (2010): Development and test of a crop growth model for application within a Global Change decision support system. Ecological Modelling 221(2): 314-329.

LI, F., MIAO, Y., CHEN, X., ZHANG, H., JIA, L. and BARETH, G. (2010): Estimating winter wheat biomass and nitrogen status using an active crop sensor. Intelligent Automation and Soft Computing 16(6): 1219-1228.

LI, F., MIAO, Y., HENNIG, S.D., GNYP, M.L., CHEN, X., JIA, L. and BARETH, G. (2010): Evaluating hyperspectral vegetation indicies for estimating nitrogen concentration of winter wheat at different growth stages. Precision Agriculture 11, 335-357.


BARETH, G. (2009): GIS- and RS-based spatial decision support: Structure of a Spatial Environmental Information System (SEIS). International Journal of Digital Earth 2(2): 134-154.

CUI, Z., ZHANG, F., MI, G., CHEN, F., LI, F., CHEN, X., LI, J. and SHI, L. (2009): Interaction between genotypic difference and nitrogen management strategy in determining nitrogen use efficiency of summer maize. Plant and Soil 317(1-2): 267-276.

CUI, Z., ZHANG, F., DOU, Z., MIAO, Y., SUN, Q., CHEN, X., LI, J., YE, Y., YANG, Z., ZHANG, Q., LIU, C. and HUANG, S. (2009): Regional evaluation of critical nitrogen concentrations in winter wheat production of the North China Plain. Agronomy Journal 101: 159-166.

CURDT, C., HOFFMEISTER, D., WALDHOFF, G. and BARETH, G. (2009): Implementation of a metadatabase for a regional SDI for soil-vegetation-atmosphere modelling. IJSDIR (under review).

JU, X., XING, G., CHEN, X., ZHANG, S., ZHANG, L., LIU, X., CUI, Z., YIN, B., CHRISTIE, P., ZHU, Z. and ZHANG, F. (2009): Reducing environmental risk by improving N management in intensive Chinese agricultural systems. PNAS 106(9): 3041-3046.

LAUDIEN, R., BROCKS, S. and BARETH, G. (2009): Development and implementation of individual interfaces to integrate scientific models within Spatial Decision Support Systems. Annals of GIS (under review).

LI, F., MIAO, Y., ZHANG, F., CUI, Z., LI, R., CHEN, X., ZHANG, H., SCHRODER, J., RAUN, W.R. and JIA, L. (2009): In-season optical sensing improves nitrogen-use efficiency for winter wheat. Soil Science Society of America Journal 73: 1566-1574.

LI, F., MIAO, Y., CHEN, X., ZHANG, H. and JIA, L. (2009): Estimating winter wheat biomass and nitrogen status using an active crop sensor. Sensor Letters (under review).

MIAO, Y., MULLA, D.J., RANDALL, G.W., VETSCH, J.A. and VINTILA, R. (2009): Combining chlorophyll meter readings and high spatial resolution remote sensing images for in-season site-specific nitrogen management of corn. Precision Agriculture 10(1): 45-62.

ROEHRIG, J., and LAUDIEN, R. (2009): Evaluation of agricultural land resources by implementing a computer-based spatial decision support system for national deciders in Benin, West Africa. Journal of Applied Remote Sensing 3(1), 033502. DOI:10.1117/1.3079033.


CUI, Z., CHEN, X., MIAO, Y., LI, F., ZHANG, F., LI, J., YE, Y., YANG, Z., ZHANG, Q. and LIU, C. (2008): On-farm evaluation of winter wheat yield response to residual soil nitrate-N in North China Plain. Agronomy Journal 100: 1527–1534.

CUI, Z., ZHANG, F., CHEN, X., MIAO, Y., LI, J., SHI, L., XU, J., YE, Y., LIU, C., YANG, Z., ZHANG, Q., HUANG, S. and BAO, D. (2008): On-farm estimation of indigeous nitrogen supply for site-specific nitrogen management in the North China Plain. Nutrient Cycling in Agroecosystems 81(1): 37-47.

CUI, Z., ZHANG, F., CHEN, X., MIAO, Y., LI, J., SHI, L., XU, J., YE, Y., LIU, C., YANG, Z., ZHANG, Q., HUANG, S. and BAO, D. (2008): On-farm evaluation of an in-season nitrogen management strategy based on soil Nmin test. Field Crops Research 105(1-2): 48-55.

CUI, Z., ZHANG, F., MIAO, Y., SUN, Q., LI, F., CHEN, X., LI, J., YE, Y., YANG, Z., ZHANG, Q. and LIU, C. (2008): Soil nitrate-N levels required for high yield maize production in the North China Plain. Nutrient Cycling in Agroecosystems 82: 187-196.

CUI, Z., CHEN, X., MIAO, Y., ZHANG, F., SCHRODER, J., ZHANG, H., LI, J., SHI, L., XU, J., YE, Y., LIU, C., YANG, Z., ZHANG, Q., HUANG, S. and BAO, D. (2008): On-farm evaluation of the improved soil Nmin-based nitrogen management for summer maize in North China Plain. Agronomy Journal 100: 517-525.

FAN, M., CUI, Z., CHEN, X., JIANG, R. and ZHANG, F. (2008): Integrated nutrient management for improving crop yields and nutrient utilization efficiencies in China. Journal of Soil and Water Conservation, 63(4): 126-128.

KLAR, C.W., FIENER, P., NEUHAUS, P., LENZ-WIEDEMANN, V.I.S. and SCHNEIDER, K. (2008): Modelling of soil nitrogen dynamics within the decision support system DANUBIA. Ecological Modelling 217(1-2): 181-196.

LAUDIEN, R., BROCKS, S., WEYLER, S. and BARETH, G. (2008): Development and implementation of a multi-temporal SDSS scenario viewer by using ArcGIS Engine: The ArcGISDoubleMapPanel. ArcUser 11(3), 16-19.

LI, F., GNYP, M.L., JIA, L., MIAO, Y., YU, Z., KOPPE, W., BARETH, G., CHEN, X. and ZHANG, F. (2008): Estimating N status of winter wheat using a handheld spectrometer in the North China Plain. Field Crops Research 106(1): 77-85.


HE, F., CHEN, Q., JIANG, R., CHEN, X. and ZHANG, F. (2007): Yield and nitrogen balance of greenhouse tomato (Lycopersicum esculentum Mill.) with conventional and site-specific nitrogen management in Northern China. Nutrient Cycling in Agroecosystems 77(1): 1-14.

JIA, L., CHEN, X., ZHANG, F., BUERKERT, A. and ROEMHELD, V. (2007): Optimum nitrogen fertilization of winter wheat based on color digital camera images. Communications in Soil Science and Plant Analysis, 38(11-12): 1385-1394.

LAUDIEN, R. and BARETH, G. (2007): Developing and programming Spatial Decision Support Systems with Java and ArcGIS Engine (ESRI) (in German). GIS 04/2007: 16-21.

MIAO, Y., MULLA, D.J., HERNANDEZ, J.A., WIEBERS, M. and ROBERT, P.C. (2007): Potential impact of precision nitrogen management on corn yield, protein content and test weight. Soil Science Society of America Journal 71(5): 1490-1499.

QIN, J., KONG, X., ZHANG, F.R., MIAO, Y. and LIU, L. (2007): Change of soil organic matter as affected by household land use based on 3S technology in urban fringes of north China. New Zealand Journal of Agricultural Research 50(5): 1093-1102.

SHOU, L., JIA, L., CUI, Z., CHEN, X. and ZHANG, F. (2007): Using high-resolution satellite imaging to evaluate nitrogen status of winter wheat. Journal of Plant Nutrition 30: 1669-1680.


CHEN, X., ZHANG, F., RÖMHELD, V., HORLACHER, D., SCHULZ, R., BÖNING-ZILKENS, M., WANG, P. and CLAUPEIN, W. (2006): Synchronizing N supply from soil and fertilizer and N demand of winter wheat by an improved Nmin method. Nutrient Cycling in Agroecosystems 74(2): 91-98.

CUI, Z., CHEN, X., LI, J., XU, J., SHI, L. and ZHANG, F. (2006): Effect of N fertilization on grain yield of winter wheat and apparent N losses. Pedosphere 16(6): 806-812.

LAUDIEN, R. & BARETH, G. (2006): Multitemporal hyperspectral data analysis for regional detection of plant diseases by using a tractor- and an airborne-based spectrometer.  PFG 3/2006: 217-227.

LAUDIEN, R., BUERCKY, K., DOLUSCHITZ, R. and BARETH, G. (2006): Aufbau einer webgestützten Spektralbibliothek zur Analyse hyperspektraler Daten von mit Rhizoctonia solani inokulierten Zuckerrüben (Establishment of a web-based spectral database for the analysis of hyperspectral data from Rhizoctonia solani-inoculated sugar beet). Sugar Industry (Zuckerindustrie) 131(56): 164-170.

MIAO, Y., MULLA, D.J. and ROBERT, P.C. (2006): Identifying important factors influencing corn yield and grain quality variability using artificial neural networks. Precision Agriculture 7(2): 117-135.

MIAO, Y., MULLA, D.J. and ROBERT, P.C. (2006): Spatial variability of soil properties, corn quality and yield in two Illinois, USA fields: implications for precision corn management. Precision Agriculture 7(1): 5-20.

MIAO, Y., MULLA, D.J., ROBERT, P.C. and HERNANDEZ, J.A. (2006): Within-field variation in corn yield and grain quality responses to nitrogen fertilization and hybrid selection. Agronomy Journal 98(1): 129-140.

MIAO, Y., MULLA, D.J., BATCHELOR, W.D., PAZ, J.O., ROBERT, P.C. and WIEBERS, M. (2006): Evaluating management zone optimal nitrogen rates with a crop growth model. Agronomy Journal 98(3): 545-553.

ZHAO, R., CHEN, X., ZHANG, F., ZHANG, H., SCHRODER, J. and RÖMHELD, V. (2006): Fertilization and nitrogen balance in a wheat–maize rotation system in North China. Agronomy Journal 98(4): 938-945.