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Article

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

1
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762, USA
2
Department of Landscape Architecture, Hebei Agriculture University, Baoding 071001, China
3
U.S. Department of Agriculture, Agricultural Research Service, Horticultural Crops Research Laboratory, 3420 NW Orchard Avenue, Corvallis, OR 97330, USA
*
Author to whom correspondence should be addressed.
Water 2020, 12(7), 1987; https://doi.org/10.3390/w12071987
Received: 29 May 2020 / Revised: 2 July 2020 / Accepted: 10 July 2020 / Published: 14 July 2020
(This article belongs to the Special Issue Irrigation Management)
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. View Full-Text
Keywords: Hydrangea macrophylla; nitrogen rate; paper biocontainer; irrigation frequency; nutrient uptake Hydrangea macrophylla; nitrogen rate; paper biocontainer; irrigation frequency; nutrient uptake
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MDPI and ACS Style

Li, T.; Bi, G.; Zhao, X.; Harkess, R.L.; Scagel, C. Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea. Water 2020, 12, 1987. https://doi.org/10.3390/w12071987

AMA Style

Li T, Bi G, Zhao X, Harkess RL, Scagel C. Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea. Water. 2020; 12(7):1987. https://doi.org/10.3390/w12071987

Chicago/Turabian Style

Li, Tongyin, Guihong Bi, Xiaojie Zhao, Richard L. Harkess, and Carolyn Scagel. 2020. "Nitrogen Fertilization, Container Type, and Irrigation Frequency Affect Mineral Nutrient Uptake of Hydrangea" Water 12, no. 7: 1987. https://doi.org/10.3390/w12071987

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