NUTRITIONAL STATUS OF STRAWBERRY CULTIVARS IN ORGANIC PRODUCTION

• Published in: Journal of plant nutrition Vol. 24; no. 9; pp. 1337 - 1346
• Main Author: Daugaard, Holger
• Format: Journal Article
• Language: English
• Published: Philadelphia, NJ Taylor & Francis Group 30.09.2001; Taylor & Francis
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; Cultivar differences; Cultivars: description, identification, tests, catalogs; Fragaria × ananassa; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Genetics and breeding of economic plants; Leaf dry matter; min; Nutrients; Organic production; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries; Seasonal variation; Soil-plant relationships. Soil fertility. Fertilization. Amendments; Strawberry; Varietal selection. Specialized plant breeding, plant breeding aims; Denmark; Scandinavia; Europe; Production system; Macronutrient(mineral); Field crop; Horticulture; Nutrition; Annual variation; Small fruits; Variety trial; Rosaceae; Fragaria ananassa; Organic fertilization; Inorganic element; Field experiment; Specificity; Fruit crop; Organic agriculture; Seasonal variation; Dicotyledones; Angiospermae; Spermatophyta; Soil plant relation; Nutritional status; Cultivar
• ISSN: 0190-4167; 1532-4087
• DOI: 10.1081/PLN-100106985

In a three-year study, the nutritional status of seven cultivars of strawberries was investigated. Being part of an organic research program, no fertilizers were added during the trial. Analyses of leaf dry matter content of nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), and calcium (Ca) revealed annual as well as seasonal variation for most nutrients. It is suggested that the variations in elemental leaf dry matter content may be caused by climatic variation among years. Especially regarding seasonal variation, it may reflect variations in the demand of the strawberry plant throughout the growing season, as well as climatic differences. Significant differences in the leaf dry matter content of nutrients between cultivars at a given time were also demonstrated and it is concluded that nutrient level is a cultivar-specific property, which must be taken into account in evaluating the nutrient demands of strawberries.