Nitrogen Uptake and Use Efficiency in Sweet Basil Production under Low Tunnels

Acharya, Tej P.; Reiter, Mark S.; Welbaum, Gregory E.; Arancibia, Ramón A.

doi:10.21273/hortsci14515-19

Cited by 19 publications

(16 citation statements)

References 24 publications

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“…Consumer demand for fresh, aromatic, functional, low-calorie food garnishes has allowed sweet basil to emerge as a growing market segment worldwide [2]. This species has become a high-income niche crop that for its fast production cycle can boost farm's cash flow as well as the profitability of hydroponics.…”

Section: Discussionmentioning

confidence: 99%

“…The total nitrogen accumulation in leaves was not different, reflecting the invariable N fertilization in the two phases. Nonetheless after the first cut, the leaf-level nitrogen use efficiency decreased, possibly because nitrogen concentration declines with leaf growth [2]. The higher nitrogen concentration of the leaves of the second cut has two main implications.…”

Section: Discussionmentioning

confidence: 99%

“…The most valuable culinary and ornamental species is Ocimum basilicum, also known as sweet basil [1]. It is an herbaceous, aromatic plant popular in various regions of the world [2] that is cultivated as a fresh leafy green, for decorative purposes and to produce an essential oil [3,4]. Basil is not typically eaten in amounts that can represent a significant daily source of energy, proteins, and minerals.…”

Section: Introductionmentioning

confidence: 99%

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Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

et al. 2020

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Sweet basil (Ocimum basilicum L.) is an aromatic, tender leafy green cultivated for the fresh market and industrial processing. Like many other leafy vegetables, this species can be harvested more than once to increase productivity. Although the cut-and-come-again (CC) harvest strategy is widespread in basil, not much is known about the effect of the cut. In this work, we examined differences in biomass, physiology, nutrient use efficiency and antioxidant capacity of basil leaves from two successive harvests. Moreover, we also performed an untargeted metabolomics analysis to reveal variations in the leaf metabolite profile. The data indicated that the cut affected many of the parameters under investigation, including a modest reduction of yield (−20%), of nitrogen use efficiency (−21%) and of some quality attributes such as the antioxidant capacity (−16%) and the nitrate content in leaves (+48%). Moreover, leaves of successive cuts displayed a significant variation of the profile of bioactive compounds, characterized by an overall decrease of phenylpropanoids and an increase in terpenoids. Our data revealed the impact of CC harvesting strategy in basil, and that this strategy offers the possibility to yield leaves with different metabolomics profiles and quality attributes.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

et al. 2020

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“…Researchers have considered that crop yield response can be estimated as a smooth, concave production function such as any quadratic form (Heady & Dillon, 1961;Segarra et al, 1989;Frank et al, 1990;Hurley et al, 2005;Roberts et al, 2006;Park, 2012;Xu et al, 2009;Harper et al, 2012). Historically, the quadratic form has been a standard specification for modeling crop yield to nutrients (Segarra et al, 1989;Cerrato & Blackmer, 1990;Boyer et al, 2012;Acharya et al, 2020).…”

Section: Quadratic Response Functionmentioning

confidence: 99%

Crop yield response functions in nutrient application: A review

Dhakal

Lange

2021

Agronomy Journal

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The question of the optimal nutrient application in agricultural production continues to gather attention because of its relevance in increasing the profitability of crop production and protecting the environment. Economically optimal nutrient application decision rules are commonly derived by fitting crop yield functions to nutrients. The choice of the appropriate yield functional form thus is critical for estimating unbiased and more precise nutrient recommendations. This review explores recent developments in yield response functions to the nutrient application. We first introduce the concept of the economic theory of production and yield response functions. We then explain, with mathematical equations, some commonly used functional forms: quadratic response, Mitscherlich-Baule, deterministic, and stochastic plateau functions. We also summarize the strengths and weaknesses of each functional form and its implications for nutrient management strategies from an economic perspective. In recent studies, researchers have suggested that stochastic plateau functional forms, both linear and quadratic, could explain yield response to the nutrient application in a better way. Finally, we recommend fitting stochastic plateau functions in conjunction with carryover information in a dynamic optimization setting may yield more accurate optimal nutrient levels. Future research should continue to investigate whether these functional forms perform better in different crop and soil environments.

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“…Basil cultivation is conducted in open fields as well as under protected environments in both soil and soilless cultivation systems. Aiming to improve crop yield and to increase availability of basil leaves throughout the year, controlled cultivation in protective structures such as greenhouses is more appropriate than cultivation in an open field [ 16 , 17 , 21 , 22 ]. Previous studies where the N fertilization rate on basil plants was tested showed a positive effect on plant growth through a yield increase, although the higher crop production was not always accompanied with high quality for the final product [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Nitrogen Input on Chemical Profile and Bioactive Properties of Green- and Red-Colored Basil Cultivars

et al. 2020

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In the present study, three red-colored (Dark Opal, Basilico Rosso, and Red Basil) and one green-colored landrace (Mitikas) of basil (Ocimum basilicum L.) were grown under four nitrogen regimes, namely Control (no fertilizer added), 200 ppm, 400 ppm, and 600 ppm of nitrogen (N). Fresh yield varied depending on N input following a quadratic function in all four genotypes, and green basil performed better compared to the red cultivars. A significant interaction of genotype × N input was recorded for most of the chemical parameters measured. Tocopherols contents of leaves were consistently higher in plants that received 200 ppm of N and lower in those receiving 600 ppm of N, especially in Dark Opal and Red Basil cultivars. Polyunsaturated fatty acids (PUFA) were the major category of fatty acids and Red Basil had the lowest ratio of omega-6/omega 3 (0.29) and thus the best fatty acid profile. Polyphenols content was the highest in Red Basil and Dark Opal (25 mg/g of extract on average) and the lowest in Mitikas and decreased with increasing N input. Similarly, antioxidant activity was the highest in Dark Opal and Red Basil fertigated with 200 ppm of N, whereas all the leaf extracts tested had good antibacterial and antifungal activity. In conclusion, basil chemical and bioactive profile was significantly influenced by both genotype and N input. Red-colored basil, although less productive, had the best chemical profile, and moderate levels of N input may provide the best compromise between yield, nutritional value, and bioactivity for the species.

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Nitrogen Uptake and Use Efficiency in Sweet Basil Production under Low Tunnels

Cited by 19 publications

References 24 publications

Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

Crop yield response functions in nutrient application: A review

The Effect of Nitrogen Input on Chemical Profile and Bioactive Properties of Green- and Red-Colored Basil Cultivars

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