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Effects of Soil pH and Fertilizers on Haskap (Lonicera caerulea L.) Vegetative Growth

1
Laboratoire d’écologie végétale et animale, Département des sciences fondamentales, Université du Québec à Chicoutimi, Saguenay, QC G7H 2B1, Canada
2
Agriculture and Agri-Food Canada, Quebec Research and Development Centre, Normandin Research Farm, Normandin, QC G8M 4K3, Canada
*
Author to whom correspondence should be addressed.
Agriculture 2019, 9(3), 56; https://doi.org/10.3390/agriculture9030056
Received: 29 January 2019 / Revised: 11 March 2019 / Accepted: 12 March 2019 / Published: 16 March 2019
(This article belongs to the Special Issue North American Native Food Crops)
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Abstract

Haskap (Lonicera caerulea L.) is a new northern latitude fruit crop that is increasing in popularity. This sudden enthusiasm for haskap increases the need for obtaining baseline knowledge related to establishing it as a crop, such as its optimal soil pH and fertilizer needs. In a greenhouse, one-year-old haskap plants (cultivar: Indigo Treat©) were grown in a local loamy sand. We assessed the impact of pH and fertilizer on haskap vegetative growth through an experiment involving four soil pH and five fertilization treatments of three N sources (ammonium, nitrate, and organic (chicken manure)). Leaf senescence as well as above-ground and root biomass were recorded after 19 weeks of vegetative growth. For cultivar Indigo Treat©, optimal vegetative growth was observed under slightly acidic soil conditions (pHCaCl2 5.5–6 or pHwater 5.9–6.5) without application of N. Phosphorus and K fertilizers did not influence vegetative growth. We here discuss the implications for establishing haskap orchards. View Full-Text
Keywords: blue honeysuckle; honeyberry; nitrogen; northern agriculture; small fruit blue honeysuckle; honeyberry; nitrogen; northern agriculture; small fruit
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Tremblay, C.; Deslauriers, A.; Lafond, J.; Lajeunesse, J.; Paré, M.C. Effects of Soil pH and Fertilizers on Haskap (Lonicera caerulea L.) Vegetative Growth. Agriculture 2019, 9, 56.

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