TY - JOUR
T1 - Altitude and fertilization type
T2 - concentration of nutrients and production of biomass in Stevia rebaudiana Bertoni
AU - Díaz-Gutiérrez, Carol
AU - Trillos, Ángela Tatiana
AU - Villa, Victor
AU - Silva, Zulma
AU - Acevedo, Liliana
AU - Arroyave, Catalina
AU - Poschenrieder, Charlotte
AU - Peláez, Carlos
N1 - Funding Information:
This work has been conducted within the “Development of an organic technological package for the management of S. rebaudiana parental plants to produce cuttings at commercial level” Project, funded by the Committee for the Development of Research at University of Antioquia. The authors also thank the FUNDAGIEM Foundation for the support of research in the Interdisciplinary Group of Molecular Studies, for its financial and technical support. COLCIENCIAS Administrative Department of Science, Technology and Innovation, for its financial support in calls 727/2015 national doctoral and calls 656/2014 “Es Tiempo de Volver”; and MAEC-AECID scholarships for University and Scientific Cooperation for Development, academic year 2015–2016.
PY - 2020
Y1 - 2020
N2 - Agricultural production systems demand techniques that allow reducing uncertainty in decision-making. A factor that adds uncertainty in agricultural systems is altitude since it influences the nutrient uptake by plants. This work aimed to evaluate the influence of two altitudinal gradients (2569 and 1487 m.a.s.l.) and two fertilizers: an organo-mineral fertilizer (composted poultry manure mixed with inorganic fertilizer) and mineral fertilizer (control) on the nutrient uptake and biomass production in commercial stevia crops. The effect of altitude and fertilizers was evaluated after 60 days, under greenhouse conditions, assessing macro and micronutrient levels in the plant leaves (nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, manganese, zinc, iron, and boron) and biomass production. The results of this work showed the effect of altitude (2569 m.a.s.l.) and organo-mineral fertilization on crop productivity and yield. The application of the organo-mineral fertilizer decreased the differences of nutrient uptake between the altitudinal gradients and provided both better nutrient uptake levels, mainly of N (79%), Ca (115%), and Mg (162%), and increased biomass production (49%), than mineral fertilization at both experimental sites. Likewise, the organo-mineral fertilizer enhanced the soils’ cation exchange capacity, increased nutrient availability, and minimizing the risks of contamination by nutrient leaching. An important conclusion of this work is that stevia plants grown at different altitudes differ in nutrient uptake (mostly nitrogen 79%); therefore, fertilizer dosing must be adjusted to crop altitude, especially for mineral fertilizers. Thus, fertilizer design should consider not only the plant nutrition requirements but also its environmental conditions.
AB - Agricultural production systems demand techniques that allow reducing uncertainty in decision-making. A factor that adds uncertainty in agricultural systems is altitude since it influences the nutrient uptake by plants. This work aimed to evaluate the influence of two altitudinal gradients (2569 and 1487 m.a.s.l.) and two fertilizers: an organo-mineral fertilizer (composted poultry manure mixed with inorganic fertilizer) and mineral fertilizer (control) on the nutrient uptake and biomass production in commercial stevia crops. The effect of altitude and fertilizers was evaluated after 60 days, under greenhouse conditions, assessing macro and micronutrient levels in the plant leaves (nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, manganese, zinc, iron, and boron) and biomass production. The results of this work showed the effect of altitude (2569 m.a.s.l.) and organo-mineral fertilization on crop productivity and yield. The application of the organo-mineral fertilizer decreased the differences of nutrient uptake between the altitudinal gradients and provided both better nutrient uptake levels, mainly of N (79%), Ca (115%), and Mg (162%), and increased biomass production (49%), than mineral fertilization at both experimental sites. Likewise, the organo-mineral fertilizer enhanced the soils’ cation exchange capacity, increased nutrient availability, and minimizing the risks of contamination by nutrient leaching. An important conclusion of this work is that stevia plants grown at different altitudes differ in nutrient uptake (mostly nitrogen 79%); therefore, fertilizer dosing must be adjusted to crop altitude, especially for mineral fertilizers. Thus, fertilizer design should consider not only the plant nutrition requirements but also its environmental conditions.
KW - altitude
KW - nitrogen
KW - organo-mineral fertilization
KW - productive crops
KW - Stevia rebaudiana
UR - http://www.scopus.com/inward/record.url?scp=85091375527&partnerID=8YFLogxK
U2 - 10.1080/01904167.2020.1822402
DO - 10.1080/01904167.2020.1822402
M3 - Artículo
AN - SCOPUS:85091375527
VL - 44
SP - 322
EP - 336
JO - Journal of Plant Nutrition
JF - Journal of Plant Nutrition
SN - 0190-4167
IS - 3
ER -