Nutritional response ofZea maysL. seedlings to 'on plant demand' fertilizer: A vector analysis approach

Autor: Elvira Rea, Giancarlo Roccuzzo, Alessandra Trinchera, C. M. Rivera, A. Salerno, Francesco Intrigliolo
Rok vydání: 2015
Předmět:
Zdroj: Journal of Plant Nutrition. 39:895-903
ISSN: 1532-4087
0190-4167
DOI: 10.1080/01904167.2015.1087563
Popis: Glass matrix based fertilizers (GMF) are new mineral fertilizers, able to release nutrients on the basis of plant demand: they are soluble only in metal complexing solutions, such as those exuded by plant roots. Moreover, nutrient release could be increased by mixing the glass-matrix fertilizer to different organic biomasses, such as leather meal, digested vine vinasse, etc. A greenhouse pot experiment was conducted for assessing the effect of an organo-mineral fertilizer, obtained by mixing GMF with increasing percentages of digested vine vinasse [DVV, at 5% (GMF95), 20% (GMF80) and 50% (GMF50) w/w], on the root and shoot biomass and nutritional status of Zea mays L. seedlings. Among tested fertilizers, the formulations GMF80 and GMF50 gave the best results as shoot/root ratio. The treatments with GMF, GMF95 and GMF80 gave rise to a significant increase of both shoot and root biomass and a tendency to increase the macro and micronutrients availability.
Databáze: OpenAIRE