Mineral Nutrient Uptake of Encore Azalea ‘Chiffon’ Affected by Nitrogen, Container, and Irrigation Frequency

Li, Tongyin; Bi, Guoan; Harkess, Richard L.; Blythe, Eugene K.

doi:10.21273/hortsci14386-19

Cited by 4 publications

(8 citation statements)

References 22 publications

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“…This indicates lower concentrations of these nutrients in specific structures did not reach a critical deficient level or limit plant growth. Such results agree with our previous study investigating the effects of increasing N rate on mineral nutrient uptake of Encore ® azalea 'Chiffon' [11]. Scagel et al [34] reported a proportional increase of other nutrients with increasing N was not necessary in an efficient fertilization management strategy.…”

Section: Discussionsupporting

confidence: 93%

“…Allocation of nutrients is affected by the mobility of the nutrient as well as the sink source relationship of a specific nutrient within a plant [11,33]. In this current study, most nutrient contents, including macro-and micro-nutrients, accumulated the most in leaves, followed by roots and stems the least.…”

Section: Discussionmentioning

confidence: 54%

“…More frequent irrigations were also found to decrease uptake of Zn, Cu, and B in Encore ® azalea 'Chiffon' and decreased uptake of P, B, and Mn in three other Rhododendron species [11,16]. One irrigation was more beneficial to azalea plants in increasing plant size, root dry weight, root length and area, and root nitrogen content, whereas irrigation frequency had less effect on plant growth of hydrangea plants [8,11,32]. The effect of irrigation frequency on plant growth and nutrient uptake is species dependent.…”

Section: Discussionmentioning

confidence: 90%

“…The paper biocontainers used in this study had a light color and porous sidewalls compared to the black plastic containers. The porous nature of the container sidewall increased daily water use of hydrangea and azalea plants [8,11] and was believed to reduce substrate temperature due to evaporative cooling effect [23]. Such effects were reported to be beneficial for biomass production and nutrient uptake of a light feeder like azalea [32], but reduced photosynthesis and stomatal conductance of hydrangea which has a higher water requirement [8].…”

Section: Discussionmentioning

confidence: 99%

“…Increased N Water 2020, 12, 1987 2 of 13 rates also increased nutrient uptake of other nutrients including P, K, Ca, and Mg in Encore ® azalea 'Chiffon' (Rhododendron sp.) [11]. Plant nutrient uptake is a function of both nutrient availability (supply) and plant growth rate (demand) [12].…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea

Zhao

et al. 2020

Water

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Mineral nutrient uptake of Hydrangea macrophylla ‘Merritt’s Supreme’ affected by nitrogen (N) fertilization rate, container type, and irrigation frequency was investigated. Rooted liners of hydrangea plants were fertilized twice weekly with a N-free fertilizer plus five N rates including 0, 5, 10, 15, or 20 mM N from ammonium nitrate (NH4NO3), irrigated once or twice daily with the same total irrigation volume, and grown in two types of one-gallon containers: a black plastic container and a biodegradable container (biocontainer), made from recycled paper. Concentrations of calcium (Ca) and magnesium (Mg) averaged in the entire plant, and iron (Fe) and manganese (Mn) in roots had increasing trends with increasing N rate. By comparison, increasing N rate had a dilution effect on root phosphorus (P), stem and root potassium (K), stem Ca and Mg, and leaf boron (B) concentrations. In general, nutrient content of each tested element increased with increasing N rate in each structure, or total in the plant. When there was a significant container type effect, plastic containers consistently had increased nutrient concentrations and content compared to biocontainers. One irrigation per day was beneficial in increasing nutrient concentrations of P, Ca, and zinc (Zn) in different plant structures.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea

Zhao

et al. 2020

Water

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Optimizing Nitrogen, Phosphorus, and Potassium Fertilization Levels for Container Plants of Lagerstroemia Indica ‘Whit III’ Based on the Comprehensive Quality Evaluation

Gong

et al. 2023

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To improve plant quality and fertilizing efficiency, we conducted a study to elucidate the effects of nitrogen (N), phosphorous (P), and potassium (K) fertilizers on the growth, nutrient accumulation, and quality of Lagerstroemia indica plants grown in containers and determine the optimal fertilization levels. Both single-factor and multifactor experiments involving N, P, K fertilizers were designed. Integrated with the plant growth, physiological traits, nutrient levels, and other indices, we used a membership function analysis to comprehensively evaluate plant quality. During the single-factor experiments, the best levels of the single fertilizers applied were 8 g/plant N, 2 g/plant P, and 4 g/plant K. We also found that, within a certain range, N, P, and K fertilizers promoted vegetative growth, increased the chlorophyll, soluble sugar, and soluble protein concentrations, and enhanced nutrient accumulation of L. indica. To avoid the wasting of fertilizers and promote plant quality, the optimal application levels were calculated using a regression analysis. The suggested N, P, and K applications were 6.89 g/plant, 1.97 g/plant, and 3.33 g/plant, respectively. Our results revealed that N, P, and K effect the performance of L. indica container plants, which paves the way for developing reliable and precise fertilizing techniques for growing L. indica.

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Influence of Fertilization and Mycorrhizae on the Nutritional Status of Rhododendron (Rhododendron hybridum) in a Nursery

et al. 2021

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Background: This study of the large-flowered azalea cv. ‘Anneke’ investigated the impact of two factors, i.e., methods of fertilization and mycorrhization, on the nutritional status of plants during three years of nursery cultivation. Methods: Single mineral fertilizers, a slow-release fertilizer Hortiform pH (SRF), and fertigation in combination with mycorrhization of plants, were applied. Plant roots were inoculated with fungi from the genera Oidiodendron and Hymenoscyphus sp. The nutritional status of the large-flowered azalea in the first three years of cultivation was assessed based on macroelements. Results: The analyses revealed significantly higher content of nitrogen, phosphorus and calcium in the leaves of plants inoculated with fungal mycelium. A beneficial effect of plant mycorrhization on plant nutritional status, i.e., higher levels of nitrogen, phosphorus, potassium, calcium, and magnesium, was noted in the second and third years of azalea cultivation. Conclusions: Significant amounts of the nutrients were utilized in the middle of the growing season and almost fully utilized after the season. Hence, the necessity to supplement nutrients in each subsequent year of plant vegetation was postulated. Fertigation was shown to require further improvement of the nutrient solution.

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Mineral Nutrient Uptake of Encore Azalea ‘Chiffon’ Affected by Nitrogen, Container, and Irrigation Frequency

Cited by 4 publications

References 22 publications

Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea

Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea

Optimizing Nitrogen, Phosphorus, and Potassium Fertilization Levels for Container Plants of Lagerstroemia Indica ‘Whit III’ Based on the Comprehensive Quality Evaluation

Influence of Fertilization and Mycorrhizae on the Nutritional Status of Rhododendron (Rhododendron hybridum) in a Nursery

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