Most melon consumers are looking for a firmness in the melon flesh and a sweet taste (Total Soluble Solids). Thus, handling quality – particularly rind strength and elasticity, which also effect melon shelf life - is very important.
Nitrogen is important for sugar content and taste. However, too much nitrogen during the later stages of growth increases rind blemishes and encourages rots.
Phosphorus is important during establishment for root growth as well as during flower formation to increase melon fruit set. It also helps produce thicker skins with well-developed netting.
Potassium has a critically important role in ensuring top quality fruit by determining the level of sugar at harvest.
Calcium also has a major role to play in maximizing fruit quality by strengthening rind cell walls and maintaining good fruit condition, shape and storage characteristics. It also plays a major role in minimizing Blossom End Rot (BER).
Boron also has a role to play in improving melon skin quality, ensuring complete melon seed set and actively encouraging uptake of calcium.
Magnesium – in balance with potassium and calcium – ensures good pulp firmness and sugar content.