{"id":82204,"date":"2019-01-30T12:13:22","date_gmt":"2019-01-30T17:13:22","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/effect-soil-k-ca-mg-saturation-endomycorrhization-growt-nutrient-uptake-sugar-maple-seedlings\/"},"modified":"2019-01-30T12:13:22","modified_gmt":"2019-01-30T17:13:22","slug":"effect-soil-k-ca-mg-saturation-endomycorrhization-growt-nutrient-uptake-sugar-maple-seedlings","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/effect-soil-k-ca-mg-saturation-endomycorrhization-growt-nutrient-uptake-sugar-maple-seedlings\/","title":{"rendered":"Effect of soil K, Ca, and Mg saturation and endomycorrhization on growth and nutrient uptake of sugar maple seedlings"},"content":{"rendered":"\n<p>Published in <strong>Plant and Soil 179: 207-216<\/strong><\/p>\n<p>Nutrient imbalances of declining sugar maple (<em>Acer saccharum <\/em>Marsh.) stands in southeastern Qu\u00e9bec have been associated with high exchangeable Mg levels in soils relative to soil K and Ca. A greenhouse experiment was set up to test the hypothesis that the equilibrium between soil exchangeable K, Ca, and Mg ions influences the growth and nutrient status of sugar maple seedlings. Also tested was whether endomycorrhization can alter nutrient acquisition under various soil exchangeable basic cations ratios. Treatments consisted of seven ratios of soil exchangeable K, Ca, and Mg making up a total base saturation of 58%, and a soil inoculation treatment with the endomycorrhizal fungus <em>Glomus versiforme <\/em>(control and inoculated), in a complete factorial design. Sugar maple seedlings were grown for 3 months in the treated soils. Plant shoot elongation rate, dry biomass and nutrient concentrations in foliage were influenced by the various ratios of soil cations. The predicted plant biomass and foliar K concentration were highest at a soil Ca saturation of 38%, a soil K saturation of 12%, and a soil Mg saturation of 8%. Potassium concentration in foliage was dependent on the level of Ca and Mg saturation in the soil when soil K saturation was close to 12%. Foliar Ca and Mg levels were more dependent on their corresponding levels in soil than foliar K. Colonization by <em>G. versiforme <\/em>did not influence seedling growth and macronutrient uptake. The results confirm that growth and nutrition of sugar maple are negatively affected by imbalances in exchangeable basic cations in soils.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Plant and Soil 179: 207-216 Nutrient imbalances of declining sugar maple (Acer saccharum Marsh.) stands in southeastern Qu\u00e9bec have been associated with high exchangeable Mg levels in soils relative to soil K and Ca. A greenhouse experiment was set up to test the hypothesis that the equilibrium between soil exchangeable K, Ca, and [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1183,1185,1180,1181],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1102],"class_list":["post-82204","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-ecosystems-and-environment","cptt_theme-forest-ecology","cptt_theme-forestry-research","cptt_theme-forests","cptt_categ_publi-scientific-article","cptt_auteurs_ministeriels-r-ouimet"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Effect of soil K, Ca, and Mg saturation and endomycorrhization on growth and nutrient uptake of sugar maple seedlings - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"Article about the effect of soil K, Ca, and Mg saturation and endomycorrhization on growth and nutrient uptake of sugar maple seedling\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/effect-soil-k-ca-mg-saturation-endomycorrhization-growt-nutrient-uptake-sugar-maple-seedlings\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Effect of soil K, Ca, and Mg saturation and endomycorrhization on growth and nutrient uptake of sugar maple seedlings - 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