Stikstofgebrek in mais
Stikstofgebrek in mais
Stikstofgebrek in suikerbiet
Fosforgebrek in suikerbiet
Kaliumgebrek in mais
Kaliumgebrek in aardappel
Magnesiumgebrek in koolzaad
Zinkgebrek in mais
Boriumgebrek in koolzaad
Boriumgebrek in mais
Zwavelgebrek in suikerbiet
Zwavelgebrek in aardappel
Mangaangebrek in mais
Mangaangebrek in suikerbiet