For a number of years NIR spectroscopy has acquired increasing importance, in both beet and sugar production, for assessing raw material and process control. In a further extension of these applications, NIR could be used for evaluating total nitrogen content in the leaves of growing beet. Previous investigations have emphasized the possibility of correlating the nitrogen content in leaves with the available nitrogen content of the soil. Analysis of leaf nitrogen status makes it possible to advise farmers whether use of fertilizers would be worthwhile during growth of the plants. Such a practice should avoid problems due either to inadequate supply of nitrogen (poor development), or to oversupply (pollution and reduction in the beets' technical value). Experiments described here show that NIR spectroscopy could replace traditional methods for determining leaf nitrogen contents. This would have two major advantages: the use of chemical reagents would be eliminated, and a great deal of t...
NIR measurement of nitrogen content in beet leaves
TAMBURINI, Elena;
1999
Abstract
For a number of years NIR spectroscopy has acquired increasing importance, in both beet and sugar production, for assessing raw material and process control. In a further extension of these applications, NIR could be used for evaluating total nitrogen content in the leaves of growing beet. Previous investigations have emphasized the possibility of correlating the nitrogen content in leaves with the available nitrogen content of the soil. Analysis of leaf nitrogen status makes it possible to advise farmers whether use of fertilizers would be worthwhile during growth of the plants. Such a practice should avoid problems due either to inadequate supply of nitrogen (poor development), or to oversupply (pollution and reduction in the beets' technical value). Experiments described here show that NIR spectroscopy could replace traditional methods for determining leaf nitrogen contents. This would have two major advantages: the use of chemical reagents would be eliminated, and a great deal of t...I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
