So have i got this right that if we apply 220 kg ha of n only 40-50% is utilised by the wheat so if we folia feed all the n say put on 110 kgs of liquid 20 % n in the form of n20 which is melted urea we should hopefully get just as much n into the wheat as blanket applying 220 kg ha n . I know it would mean more passes through the crop . say six passes instead of 3/4 passes .