How to improve maize protein content

Protein levels of maize can be improved with the correct balance of nutrition, particularly nitrogen, phosphorus, sulphur and zinc which will improve grain protein content and quality.

Nitrogen improves grain protein

Poor nitrogen supply during grain fill leads to lower grain proteins. A balanced nitrogen topdressing during stem elongation can improve grain protein content and provide the right amount of nitrogen to sustain the maize grain filling.

Effect of nitrogen rate on maize grain protein

Potassium increases protein content

Good potassium nutrition increases protein content of the grain and also the levels of amino acids cystine and methionine.

Effect of potassium on maize protein and amino acid content

Effect of potassium on maize yield and quality

Sulphur is needed for nitrogen to be utilised efficiently

Sulphur supply is particularly important in the conversion of nitrogen to protein and in improving grain maize quality.

Effect of sulphur & nitrogen on maize grain protein content

Grass and forage agronomy and fertiliser advice
Grass and forage agronomy and fertiliser advice

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