Different Responses of Various Chlorophyll Meters to Increasing Nitrogen Supply in Sweet Pepper.

ABSTRACT: Intensive vegetable production is commonly associated with excessive nitrogen (N) fertilization and associated environmental problems. Monitoring of crop N status can enhance crop N management. Chlorophyll meters (CMs) could be used to monitor crop N status because leaf chlorophyll (chl) content is strongly related to crop N status. To monitor crop N status, relationships between CM measurements and leaf chl content require evaluation, particularly when excessive N is supplied. The SPAD-502 meter, atLEAF+ sensor, MC-100 Chlorophyll Concentration Meter, and Multiplex sensor were evaluated in sweet pepper with different N supply, throughout the crop, ranging from very deficient to very excessive. CM measurements of all sensors and indices were strongly and positively related to leaf chloroph

SUBMITTER: Padilla FM 

PROVIDER: S-EPMC6277906 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature