References
- AMUNDSON, R. ‒KOEHLER, F. 1987. Utilization of DRIS for diagnosis of nutrient deficiencies in winter wheat. In Agronomy Journal, vol. 79, no. 3, pp. 472‒476.
- ARREGUI, L.M. ‒ LASA, B. ‒ LAFARGA, A. ‒ IRAÑE-TA, I. ‒ BAROJA, E. ‒ QUEMADA, M. 2006. Evaluation of chlorophyll meters as tools for N fertilization in winter wheat under humid Mediterranean conditions. In European Journal of Agronomy, vol. 24, no. 2, pp. 140‒148. DOI: 10.1016/j.eja.2005.05.005.
- BASSO, B. ‒ CAMMARANO, D. ‒ TROCCOLI, A. ‒ CHEN, D. ‒ RITCHIE, J.T. 2010. Long-term wheat response to nitrogen in a rainfed Mediterranean environment: Field data and simulation analysis. In European Journal of Agronomy, vol. 33, no. 2, pp. 132‒138. DOI: 10.1016/j.eja.2010.04.004.
- BASSO, B. ‒ RITCHIE, J.T. ‒ CAMMARANO, D. ‒ SARTORI, L. 2011. A strategic and tactical management approach to select optimal N fertilizer rates for wheat in a spatially variable field. In European Journal of Agronomy, vol. 35, no. 4, pp. 215‒222. DOI: 10.1016/j.eja.2011.06.004.
- BEAUFILS, E.R. 1973. Diagnosis and recommendation integrated system (DRIS). In Soil Science Bulletin, vol. 1, pp. 1‒132.
- BEHERA, S.K. ‒ PANDA, R.K. 2009. Integrated management of irrigation water and fertilizers for wheat crop using field experiments and simulation modeling. In Agricultural Water Management, vol. 96, no. 11, pp. 1532‒1540. DOI: 10.1016/j.agwat.2009.06.016.
- EHLERT, D. ‒ HORN, H.J. ‒ ADAMEK, R. 2008. Measuring crop biomass density by laser triangulation. In Computers and Electronics in Agriculture, vol. 61, no. 2, pp. 117‒125. DOI: 10.1016/j.com-pag.2007.09.013.
- FENG, W. ‒ YAO, X. ‒ ZHU, Y. ‒ TIAN, Y.C. ‒CAO, W.X. 2008. Monitoring leaf nitrogen status with hy-perspectral reflectance in wheat. In European Journal of Agronomy, vol. 28, no. 3, pp. 394‒404. DOI: 10.1016/j.eja.2007.11.005.
- HAN, Y.L.M.J.L.Z.X.Z.F. 2005. Estimating growth status of winter wheat based on aerial images and hyperspectral data. In ANDREW, G. TESCHER (Ed.) Applications of Digital Image Processing XX-VII: Proceedings of the SPIE 5909, pp. 568‒576. DOI: 10.1117/12.615717.
- LI, F. ‒ MIAO, Y. ‒ HENNIG, S.D. ‒ GNYP, M.L. ‒ CHEN, X. ‒ JIA, L. ‒ BARETH, G. 2010. Evaluating hyperspectral vegetation indices for estimating nitrogen concentration of winter wheat at different growth stages. In Precision Agriculture, vol. 11, no. 4, pp. 335‒357. DOI: 10.1007/s11119-010-9165-6.
- LIANG, H. ‒ HUANG, W. ‒ LIU, L. ‒ WANG, J. ‒ ZHAO, C. ‒ MA, Y. 2004. Variable rate nitrogen application algorithm based on SPAD measurements and its influence on winter wheat. In Geoscience and Remote Sensing Symposium, 2004. IGARSS ‘04: Proceedings. 2004 IEEE International, vol. 6, pp. 4059‒4062. DOI:10.1109/IGARSS.2004.1370022
- LICHTFOUSE, E. ‒HAMELIN, M. ‒NAVARRETE, M. ‒DEBAEKE, P. 2011. Sustainable agriculture. Volume 2. Springer: Dordrecht; New York. DOI:10.1007/978-94-007-0394-0_1.
- LUKAS, V. ‒NEUDERT, L. ‒KREN, J. 2009a. Mapping of soil conditions in precision agriculture. In ActaAgrophysica, vol. 13, no. 2. pp. 393‒405.
- LUKAS, V. ‒ NEUDERT, L. ‒KŘEN, J. 2009b. Use of aerial imaging and electrical conductivity for spatial variability mapping of soil condition. In LOKHORST, C. - HUIJSMANS, J.F.M. ‒ de LOUW, R.P.M. (Ed.) JIAC2009: Book of abstracts. Wageningen Academic Publishers, pp. 278.
- MARSCHNER, H. 1995. Mineral nutrition of higher plants. Academic Press, London: San Diego, p. 889.
- MIAO, Y. ‒ STEWART, B.A. ‒ ZHANG, F. 2011. Long-term experiments for sustainable nutrient management in China. A review. In Agronomy for Sustainable Development, vol. 31, no. 2, pp. 397‒414. DOI: 10.1051/agro/2010034.
- PATEL, H.R. ‒PATEL, G.G. ‒ SHROFF, J.C. ‒ PAN-DEY, V. ‒ SHEKH, A.M. ‒ VADODARIA, R.P. ‒ BHATT, B.K. 2010. Calibration and validation of CERES-wheat model for wheat in middle gujarat region. In Journal of Agrometeorology, vol. 12, no. 1, pp. 114‒117.
- RAHN, C.R. ‒ ZHANG, K. ‒ LILLYWHITE, R. ‒ RAMOS, C. ‒ DOLTRA, J. ‒DE PAZ, J.M. ‒ RILEY, H. ‒ FINK, M. ‒ NENDEL, C. ‒ THORUP-KRIS-TENSEN, K. ‒ PEDERSEN, A. ‒PIRO, F. ‒ VENE-ZIA, A. ‒ FIRTH, C. ‒SCHMUTZ, U. ‒ RAYNS, F. ‒STROHMEYER, K. 2010. Eu-Rotate_N: A decision support system to predict environmental and economic consequences of the management of nitrogen fertiliser in crop rotations. In European Journal of Horticultural Science, vol. 75, no. 1, pp. 20‒32.
- RAZ, M. ‒ KARNIELI, A. ‒ BONFIL, D.J. 2003. Characterization of wheat growth conditions by visible and NIR reflectance. In OWE, M. – D´URSO, G. – TOU-LIOS, L. (Ed.): Remote Sensing for Agriculture, Ecosystems, and Hydrology IV: Proceedings of the SPIE 4879, pp. 400‒409. DOI: 10.1117/12.462481.
- RODRIGUEZ-MORENO, F. ‒LLERA-CID, F. 2011. Evaluating spectral vegetation indices for a practical estimation of nitrogen concentration in dual-purpose (forage and grain) triticale. In Spanish Journal of Agricultural Research, vol. 9, no. 3, pp. 681‒686. DOI: 10.5424/sjar/20110903-265-10.
- SRINIVASAN, A. 2006.Handbook of precision agriculture: principles and applications. Food Products Press: Bringhamton, N Y.
- ZADOKS, J.C. ‒CHANG, T.T. ‒ KONZAK, C.F. 1974. A decimal code for the growth stages of cereals. In Weed Research, vol. 14, no. 6, pp. 415‒421. DOI: 10.1111/j.1365-3180.1974.tb01084.x.
- ZBÍRAL, J. 2005. Analýza rostlinného materiálu: Jednot-népracovnípostupy [Plant analysis: Integrated work procedures]. Central Institute for Supervising and Testing in Agriculture, Brno, p. 192.
- ZBIRAL, J. ‒NEMEC, P. 2000. Integrating of Mehlich 3 extractant into the Czech soil testing scheme. In Communications in Soil Science and Plant Analysis, vol. 31, no. 11‒14, pp. 2171‒2182.
- ZHANG, J. ‒BLACKMER, A.M. ‒ ELLSWORTH, J.W. ‒KOEHLER, K.J. 2008. Sensitivity of chlorophyll meters for diagnosing nitrogen deficiencies of corn in production agriculture. In Agronomy Journal, vol. 100, no. 3, pp. 543‒550. DOI: 10.2134/agronj2006.0153.
- ZHU, Y. ‒LI, Y. ‒FENG, W. ‒TIAN, Y. ‒YAO, X. ‒CAO, W. 2006. Monitoring leaf nitrogen in wheat using canopy reflectance spectra. In Canadian Journal of Plant Science, vol. 86, no. 4, pp. 1037‒1046.