Abstract
Data of two field experiments, in which the nitrogen application rate was varied between 0 and 300 kg/ha, were used to analyze the factors that affect marketable yield in Brussels sprouts. Marketable yield (Y) is a function of radiation use efficiency (RUE), cumulative intercepted radiation (IPAR), partitioning of biomass (P) and the dry matter concentration in the buds (DMC): Y=RUE*IPAR*P/DMC. The effect of nitrogen application rate on marketable yield was analyzed in these terms. RUE was not affected by nitrogen application rate. Nitrogen application rate had also only a small effect on P and DMC. The effect of nitrogen availability on IPAR was the key factor in determining marketable yield. It had a strong effect on canopy development resulting in increasing interception of incoming radiation at higher nitrogen application rates. Consequences for cultural measures to obtain maximum yield are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
