Since only small quantities of micronutrients are needed annually for normal plant growth, would it be wise to add large quantities of these elements now to satisfy future plant needs? Explain. Iron...

Since only small quantities of micronutrients are needed annually for normal plant growth, would it be wise to add large quantities of these elements now to satisfy future plant needs? Explain.

Iron deficiency is common for peaches and other fruits grown on highly alkaline irrigated soils of arid regions, even though these soils are quite high in iron. How do you account for this situation, and what would you do to alleviate the difficulty?