Infrastructure Development Code


All fertilisers shall be delivered to the site immediately before they are required for spreading and shall be thoroughly mixed on site. The Engineer may prohibit the use of any fertilisers which have deteriorated because of interaction, wetting, etc. Fertilisers shall be lightly harrowed into the topsoil, 2 to 3 days before seed sowing, at the following rates:

30% Potassic superphosphate        150 kg/ha (15g/m2)
Sulphate of ammonia            50 kg/ha (5g/m2)
200 kg/ha
This shall be followed one month after sowing with an application of the following:

Di-ammonium Phosphate (DAP)     100 kg/ha

Definitions in this section