TY - JOUR AU - Gutiérrez-Soto, Marco V. AU - Cadet-Piedra, Eduardo AU - Rodríguez-Montero, Werner AU - Araya-Alfaro, José Miguel PY - 2011/12/01 Y2 - 2024/03/29 TI - GreenSeeker™and the diagnosis of crop health. JF - Agronomía Mesoamericana JA - Agron. Mesoam. VL - 22 IS - 2 SE - Technical Notes DO - 10.15517/am.v22i2.11799 UR - https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11799 SP - 397-403 AB - <p>The</p><p>objective of this note is to provide basic information and technical</p><p>principles needed for the use of the GreenSeeker™,</p><p>in agricultural applications such as nitrogen fertilization,</p><p>irrigation scheduling, mapping of agricultural fi elds and</p><p>precision agriculture. A description of the instrument is provided,</p><p>as well as the technical and physiological principles</p><p>that support its use in agriculture. The radiative properties</p><p>of plant canopies and light refl ection from healthy and</p><p>stressed crops are described briefl y. Possible applications of</p><p>GreenSeeker in diagnosis and correction of crop disorders</p><p>in the fi eld in real time are considered, according to spatial</p><p>heterogeneity ubiquitous in tropical agro ecosystems. The</p><p>limitations of the technology currently available and its</p><p>applications to other tropical crops, besides rice and corn,</p><p>are also addressed.</p> ER -