ZINC, MANGANESE AND PHOSPHORUS INTERRELATIONSHIPS AND THEIR EFFECTS ON IRON AND COPPER IN CHELATOR-BUFFERED SOLUTION GROWN RUSSET BURBANK POTATO

摘要: Three hydroponic experiments were conducted with Russet Burbank potato to elucidate zinc (Zn) and manganese (Mn) relationships associated interactions other nutrients at different levels of phosphorus (P). Except when P was optimal, root Mn concentration reduced optimal solution Zn relative deficient or excessive levels. Shoot generally increased augmented Zn. As increased, declined while shoot copper (Cu) iron (Fe) Cu increased. Increasing decreased in all plant tissues—especially roots. The influence on P, Cu, Fe concentrations nearly opposite the impact, indicating that have counter effects. Partitioning between micronutrient occurred available either excessive, which may also help explain poor health adverse is not optimally maintained.