SciELO - Scientific Electronic Library Online

vol.22 issue2Chemical control of soybean rust in the Planalto Medio, RS., BrazilBubble manometers for the continuous measurement of root pressure in tropical crops author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Agronomía Mesoamericana

On-line version ISSN 2215-3608Print version ISSN 1659-1321


GUTIERREZ-SOTO, Marco V; CADET-PIEDRA, Eduardo; RODRIGUEZ-MONTERO, Werner  and  ARAYA-ALFARO, José Miguel. GreenSeeker™and the diagnosis of crop health. Agron. Mesoam [online]. 2011, vol.22, n.2, pp.397-403. ISSN 2215-3608.

GreenSeeker™and the diagnosis of crop health. The objective of this note is to provide basic information and technical principles needed for the use of the GreenSeeker™, in agricultural applications such as nitrogen fertilization, irrigation scheduling, mapping of agricultural fields and precision agriculture. A description of the instrument is provided, as well as the technical and physiological principles that support its use in agriculture. The radiative properties of plant canopies and light reflection from healthy and stressed crops are described briefly. Possible applications of GreenSeeker in diagnosis and correction of crop disorders in the field in real time are considered, according to spatial heterogeneity ubiquitous in tropical agro ecosystems. The limitations of the technology currently available and its applications to other tropical crops, besides rice and corn, are also addressed.

Keywords : NDVI; nitrogen-containing pigments; precision agriculture; radiation; reflectance; remote sensors.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License