...
机译:Non-invasive monitoring of the impact of potassium and calcium malnutrition in apple trees (Mauusx domestica Borkh.)
I.V.Michurin Federal Scientific Centre, Michurinsk, Russia;
Michurinsk State Agrarian University, Michurinsk, Russia;
potassium; calcium; reflectance spectra; non-invasive monitoring; malnutrition;