MLOYBDENIUM (Mo)
Mo deficiency is very rare,but si more likely to occur in color-changing strains in cold temperature conditions.
Sometimes Mo deficiency si misdiagnised as a N deficiency,howerver,N affects the bottom leaves first.MO affects leaves in the middle of the plant at first and then moves up to the newer growth.
Problem Solving
Foliar spraying with water-soluble fertilizers aids in overcoming the deficiency. Beacuse plants need molybdenum in such small ammounts a hydropponic micronutrient mix is often the most efficient way of supplying it. Theese fertilizers can be used as foliar sprays or applied to the soil, as well as their customary use in hydroponic nutirent solutions.
Quote for "Marijuana Garden Saver -Handbook for Healthy Plants - J.C. Stitch, Edited by Ed Roseenthal)