In field non-invasive sensing of the nitrogen status in hybrid bermudagrass (Cynodon dactylon × C. transvaalensis Burtt Davy) by a fluorescence-based method (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• In field non-invasive sensing of the nitrogen status in hybrid bermudagrass (Cynodon dactylon × C. transvaalensis Burtt Davy) by a fluorescence-based method (Articolo in rivista) (literal)

Anno

• 2015-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.eja.2014.11.007 (literal)

Alternative label

• Giovanni Agati, Lara Foschi, Nicola Grossi, Marco Volterrani (2015)
  In field non-invasive sensing of the nitrogen status in hybrid bermudagrass (Cynodon dactylon × C. transvaalensis Burtt Davy) by a fluorescence-based method
  in European journal of agronomy
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Giovanni Agati, Lara Foschi, Nicola Grossi, Marco Volterrani (literal)

Pagina inizio

• 89 (literal)

Pagina fine

• 96 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 63 (literal)

Rivista

• European journal of agronomy (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto di Fisica Applicata \"Nello Carrara\" CNR, via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto n. 80, 56124 Pisa, Italy (literal)

Titolo

• In field non-invasive sensing of the nitrogen status in hybrid bermudagrass (Cynodon dactylon × C. transvaalensis Burtt Davy) by a fluorescence-based method (literal)

Abstract

• The level of N fertilization and the content of leaf N in Cynodon dactylon × C. transvaalensis Burtt Davy cv. 'Tifway 419' bermudagrass were evaluated non-destructively with a fluorescence-based method. It was applied directly into the field by using the Multiplex portable fluorimeter during two consecutive seasons (2010 and 2011). In the 2010 experiment, the nitrogen balance index (NBI1) provided by the sensor was able to discriminate (at P < 0.05) six different N levels applied, up to 250 kg ha-1, with a precision (root mean square error, RMSE) in the rate estimate of 3.29 kg ha-1. In 2011, the index was insensitive to the N treatment between 150 kg ha-1 and 250 kg ha-1 N rates, and its precision was 39.98 kg ha-1. Calibration of the sensor by using the destructive analysis of turf samplings showed a good linear regression between NBI1 and the leaf N content for both 2010 (R2 = 0.81) and 2011 (R2 = 0.93) experiments. This allowed mapping of the leaf N spatial distribution acquired by the sensor in the field with a prediction error of 0.21%. Averaging the overall estimates of leaf N content per N treatment provided an upper limit of 200 kg ha-1 for the required fertilization, corresponding to a critical level of leaf N of about 2.3%. Our results confirm the usefulness of the new fluorescence-based method and sensor for a precise management of fertilization in turfgrass. (literal)

Prodotto di

• Institute of applied physics \"Nello Carrara\" (IFAC) (Istituto)
• Metodologie ottiche per l'agro-alimentare (AG.P04.037.001) (Modulo)

Autore CNR

• GIOVANNI AGATI (Unità di personale interno)

Insieme di parole chiave

• Keywords of "In field non-invasive sensing of the nitrogen status in hybrid bermudagrass (Cynodon dactylon × C. transvaalensis Burtt Davy) by a fluorescence-based method" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GIOVANNI AGATI (Unità di personale interno)

Prodotto

• Institute of applied physics \"Nello Carrara\" (IFAC) (Istituto)
• Metodologie ottiche per l'agro-alimentare (AG.P04.037.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• European journal of agronomy (Rivista)

Insieme di parole chiave di

• Keywords of "In field non-invasive sensing of the nitrogen status in hybrid bermudagrass (Cynodon dactylon × C. transvaalensis Burtt Davy) by a fluorescence-based method" (Insieme di parole chiave)