Nitrogen and Potassium Concentrations in the Nutrients Solution for Melon Plants Growing in Coconut Fiber without Drainage

Figure 3

N-NO₃⁻ levels (mg L⁻¹) in the substratum solution extract (method 1 : 1.5 v/v) 60 days after transplantation as influenced by the concentrations of N (a) and of K (b) in the nutrients solution. **: Significant at the level of 1%, according to the 𝐹 test.

(a)

(b)