Sugarbeets

Nitrogen

After field corn, use 120-150 kg N/ha. Reduce nitrogen application to 100-130 kg/ha when following other crops. Excess nitrogen will not increase sugarbeet yield, but will decrease sugar content and clear juice purity.

Phosphorus and Potassium

Test the soil to determine phosphorus and potassium requirements.

Table X, Phosphorus and Potassium Requirements for Sugarbeets on Mineral Soils

Legend: HR = High Response  MR = Medium Response  LR = Low Response  RR = Rare Response  NR = No Response
Phosphorus Potassium
Sodium Bicarbonate Phosphorus Soil Test (ppm) Rating Phosphate (P205) Required kg/ha Ammonium Acetate Potassium Soil Test (ppm) Rating Potash (K2O) Required (kg/ha)
0-3 HR 150 0-15 HR 180
4-5 HR 140 16-30 HR 170
6-7 HR 140 31-45 HR 160
8-9 HR 130 46-60 HR 140
10-12 MR 130 61-80 HR 120
13-15 MR 120 81-100 MR 90
16-20 LR 100 101-120 MR 70
21-25 LR 90 121-150 MR 20
26-30 RR 70 151-180 LR 0
31-40 RR 50 181-210 LR 0
41-50 RR 30 211-250 RR 0
51-60 RR 0 >250 NR 0
61-80 RR 0  
80+ NR 0  
Excess application of potassium will lead to luxury consumption by the sugarbeet plant. This has a negative effect upon clear juice purity.