The nutrient recommendation for Carrot is 75:62.5:50 kg NPK/ha. The quantity of straight fertilizers to get the above dose is worked out for a cent.
The fertilizers dose needed is 651 gram urea, 1388 gram rock phosphate and 334 gram Muriate of Potash respectively for a cent. The fertilizers have to be applied in split doses.
The first dose has to be applied at the time of planting. The urea, rock phosphate, Muriate of Potash needed at this time is 325 gram, 1387 gram, 334 gram respectively for a cent.
The second dose has to apply in one month after transplanting and the dosage is 325 gram urea for a cent.
Lime or dolomite @ 1-3 kg per cent has to be applied in acid soils two weeks ahead of fertilizer application. Organic manure @ 100 kg/cent is recommended at planting time.
To get the details for an acre you need to multiply the values with 100.