Yield and nitrogen use efficiency of bell pepper grown in SLAB fertigated with different nitrogen rates

Silva, José Maria da; Fontes, Paulo Cézar Rezende; Milagres, Carla do Carmo; Abreu, July Anne Amaral de

doi:10.1080/01904167.2020.1783297

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…Studies agreed that the response was N level and species/cultivar dependent. Among the major Solanaceae vegetables, almost all existing studies exploring the variability for N use efficiency (NUE) and the effects in fruit quality of reducing N fertilization have been carried out in tomato Du et al, 2017;Montemurro et al, 2007;Sainju et al, 2001;Wang and Xing, 2017;Warner et al, 2004), while this knowledge is much scarce in eggplant Pal et al, 2002;Radicetti et al, 2016; and pepper (Benincasa et al, 2011;Candido et al, 2009;da Silva et al, 2020;Flores et al, 2007;Van, 2007;Yasuor et al, 2013). Therefore, more information is needed in order to exploit variability for N use efficiency without deteriorating the nutritional and organoleptic quality of fruits of eggplant, tomato and pepper.…”

Section: Breeding For Quality For Future Agricultural Requirements To...mentioning

confidence: 99%

Characterization and Enhancement of Genetic Resources for the Improvement of Nutritional and Organoleptic Quality in Solanaceae Vegetable Crops

Martínez¹

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Section: Breeding For Quality For Future Agricultural Requirements To...mentioning

confidence: 99%

Characterization and Enhancement of Genetic Resources for the Improvement of Nutritional and Organoleptic Quality in Solanaceae Vegetable Crops

Martínez¹

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Application of Proximal Optical Sensors to Assess Nitrogen Status and Yield of Bell Pepper Grown in Slab

Silva

Fontes

Milagres

et al. 2020

J Soil Sci Plant Nutr

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Nitrogen (N) is an essential element frequently associated with environmental issues, and the utilization of leaf clip sensors to adjust N fertilization is a technology of interest. This study aimed to evaluate the indices measured with SPAD and Dualex through the bell pepper crop cycle cultivated under different N doses, to identify the ability of the SPAD and Dualex optical sensors to assess N status and establishing the accuracy of the chlorophyll indices as yield estimators. Bell pepper plants were cultivated for 150 days after transplanting (DAT) in slabs fertigated with 6 different N doses divided into 10 biweekly applications. The indices SPAD, chlorophyll (CHL), flavonoids (FLV), and nitrogen balance index (NBI) were measured over the cycle on the uppermost mature leaves of each treatment. We determined the N content of these leaves and the final commercial yield. An interaction effect was found between N dose and growth stage. The SPAD and CHL indices were not significantly affected by N dose up to 60 DAT. The FLV and NBI indices show an opposite pattern in response to N dose. We found a strong correlation between the SPAD, CHL, and NBI and the N content in the leaves and between these indices and commercial yield in several evaluated dates. However, we did not observe a significant correlation between commercial yield and FLV. Both leaf clip sensors could predict the N status of the leaves and the commercial yield, improving the correlation as the crop development progressed.

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Long-term impacts of mineral and organic fertilizer inputs on nitrogen use efficiency for different cropping systems and site conditions in Southern China

Zhu

Ros

et al. 2023

European Journal of Agronomy

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Yield and nitrogen use efficiency of bell pepper grown in SLAB fertigated with different nitrogen rates

Cited by 4 publications

References 28 publications

Characterization and Enhancement of Genetic Resources for the Improvement of Nutritional and Organoleptic Quality in Solanaceae Vegetable Crops

Characterization and Enhancement of Genetic Resources for the Improvement of Nutritional and Organoleptic Quality in Solanaceae Vegetable Crops

Application of Proximal Optical Sensors to Assess Nitrogen Status and Yield of Bell Pepper Grown in Slab

Long-term impacts of mineral and organic fertilizer inputs on nitrogen use efficiency for different cropping systems and site conditions in Southern China

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