Base dressing: In normal soil conditions, N requirements are assured by symbiotic activity. Application of N fertilizers is advisable only during the initial stages, and/or in adverse climatic or soil conditions.
30 Kg/ha N (as 65 Kg/ha urea).
110-160 Kg/ha P2O5 (as 550-800 Kg/ha single superphosphate).
110 Kg/ha K2O (as 220 Kg/ha potassium sulphate).
Fertilizers should be well incorporated into the soil.
apply by fertigation
at intervals that suit local conditions:(sandy soils require shorter irrigation intervals than heavy soils). Too low potassium may cause insufficient colour of the pods. Therefore, potassium should be applied in increased amounts while pods are starting their intensive development.
Growth period from sowing to harvest time, is highly dependent upon temperature and climatic conditions, but it is always longer than 70 days. It is difficult to predict, therefore, the exact timing and dosing of fertigation as top-dressing.