Par conséquent, si la croissance initiale des plants ralentit, qu’ils tardent à fleurir et possèdent des tiges fines, cela peut indiquer une carence en azote.
Young maize plants are also most likely deficient in potassium if they are slow to develop. Potassium deficiency increases the susceptibility to stalk rot leading to shorter crops.
When maize plant growth is severely stunted – leaves are thinner than normal, wrinkled and weak, it indicates a boron or manganese deficiency.
In case of a copper deficiency the tips of the new unfolding leaves are also dried-out and the stalk is often soft and limp.
En cas de suspicion d’une carence en nutriments, veillez à effectuer une analyse foliaire.