One-month old tomato seedlings were transferred to 0.2-strength Hoagland nutrient solution (HNS) at pH 7. The 0.2 HNS contained 6.2 mg L1 P and 0.2 mg L1 Fe.
One-month old tomato seedlings were transferred to0.2-strength Hoagland nutrient solution (HNS) at pH 7. The 0.2HNS contained 6.2 mg L1 P and 0.2 mg L1 Fe.