Dynamics of nutrient accumulation in aboveground parts of sorghum
1996
Lasztity, B. (Magyar Tud. Akad., Budapest (Hungary) Talajtani es Agrokemiai Kutato Intezete)
In a long-term field fertilization experiment on calcareous sandy soil, studies were made on the dynamics of nutrient accumulation in the aboveground parts of the grain sorghum variety Alfoldi F 1. Specific nutrient contents were calculated. Plant samples were taken from an area of 0.36 m2 in the major phenophases on a total of six occasions during the vegetation period. The following conclusion can be drawn from the results. Among the macroelements, the accumulation of N, P, K, Ca, Na, S and Mg was continuous, though at differing rates, throughout the vegetation period. Of the micronutrients, the accumulation of Mn, Zn, and B proved to be continuous up to harvesting, while Fe and Cu were accumulated up to flowering, after which element loss, or reflux, was observed
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