2025/2026 ICB: KwaZulu-Natal soybean and maize under irrigation

OPDT   OIL & PROTEIN SEEDS DEVELOPMENT TRUST
OAC   OILSEEDS ADVISORY COMMITTEE

OPDT
OIL & PROTEIN SEEDS DEVELOPMENT TRUST

OAC
OILSEEDS ADVISORY COMMITTEE


2025/2026 SUMMER CROPS  //  Income and Cost Budgets

KwaZulu-Natal (Bergville) – irrigation

Income and cost budgets for maize and soybeans for KwaZulu-Natal (Bergrivier)
Area KwaZulu-Natal: Bergrivier
Crop Maize Soybeans
Production system Irrigation

1. Income

Yield: deterministic Ton/ha 12.00 4.00
SAFEX simulated price / producer price: 2026 R/ton 3 326 7 085
Total deductions R/ton 527 399
– Transport differential R/ton 451 268
– Grade differential R/ton 14
– Handling and commission R/ton 62 61
– Seed breeding and technology levy R/ton 70
Price premiums R/ton
Net farm gate price R/ton 2 799 6 686
Gross income R/ha R33 587 R26 743

2. Variable expenditures

Contracting R/ha
Crop insurance R/ha 1 276 3 263
Fertilizer R/ha 9 888 3 517
Lime R/ha 653
Seed R/ha 6 416 2 625
Fuel R/ha 1 831 1 842
Herbicide R/ha 978 1 493
Insecticide / Fungicide R/ha 1 623 1 050
Marketing costs R/ha
Repairs and maintenance R/ha 923 623
Casual labour R/ha 773
Aerial spray R/ha
Irrigation electricity R/ha 4 134 3 518
Water R/ha 1 807 1 538
Other expenditure: scheduling/irrigation equipment R&M R/ha 989 860
Total variable expenditure R/ha R31 291 R20 328
Total variable expenditure R/ton R2 608 R5 082
3.1 Gross margin R/ha R2 297 R6 415
3.2 Gross margin R/ton R191 R1 604
Break-even yield T/ha 11.18 3.04
Break-even price R/ton R2 608 R5 082
Source: BFAP, GSA and individual farmers – 2025.
Gross margin comparison – baseline: KwaZulu-Natal (Bergrivier)
Figure 3.2: Gross margin comparison – Baseline: KwaZulu-Natal irrigation

Gross margin per hectare: KwaZulu-Natal (Bergville)

Maize sensitivity analysis
Yield (t/ha)
Producers price 10.50 11.00 11.50 12.00 12.50 13.00 13.50
R2 399 -6 102 -4 902 -3 703 -2 503 -1 304 -104 1 095
R2 499 -5 052 -3 802 -2 553 -1 303 -54 1 196 2 445
R2 599 -4 002 -2 702 -1 403 -103 1 196 2 496 3 795
R2 699 -2 952 -1 602 -253 1 097 2 446 3 796 5 145
R2 799 -1 902 -502 897 2 297 3 696 5 096 6 495
R2 899 -852 598 2 047 3 497 4 946 6 396 7 845
R2 999 198 1 698 3 197 4 697 6 196 7 696 9 195
R3 099 1 248 2 798 4 347 5 897 7 446 8 996 10 545
R3 199 2 298 3 898 5 497 7 097 8 696 10 296 11 895
Soybeans sensitivity analysis
Yield (t/ha)
Producers price 3.25 3.50 3.75 4.00 4.25 4.50 4.75
R6 286 100 1 672 3 243 4 815 6 386 7 957 9 529
R6 386 425 2 022 3 618 5 215 6 811 8 407 10 004
R6 486 750 2 372 3 993 5 615 7 236 8 857 10 479
R6 586 1 075 2 722 4 368 6 015 7 661 9 307 10 954
R6 686 1 400 3 072 4 743 6 415 8 086 9 757 11 429
R6 786 1 725 3 422 5 118 6 815 8 511 10 207 11 904
R6 886 2 050 3 772 5 493 7 215 8 936 10 657 12 379
R6 986 2 375 4 122 5 868 7 615 9 361 11 107 12 854
R7 086 2 700 4 472 6 243 8 015 9 786 11 557 13 329
Soybeans margin above/below maize
Yield Price (R/ton)
R6 386 R6 486 R6 586 R6 686 R6 786 R6 886 R6 986
3.00 -3 468 -3 168 -2 868 -2 568 -2 268 -1 968 -1 668
3.25 -1 871 -1 546 -1 221 -896 -571 -246 79
3.50 -275 75 425 775 1 125 1 475 1 825
3.75 1 322 1 697 2 072 2 447 2 822 3 197 3 572
4.00 2 918 3 318 3 718 4 118 4 518 4 918 5 318
4.25 4 514 4 939 5 364 5 789 6 214 6 639 7 064
4.50 6 111 6 561 7 011 7 461 7 911 8 361 8 811
4.75 7 707 8 182 8 657 9 132 9 607 10 082 10 557
5.00 9 304 9 804 10 304 10 804 11 304 11 804 12 304

Notes

  • The cost items reflect the input allocation based on the target yield for the respective crops.
  • Although some expenditure items are zero, it is reflected in the budgets to allow for individual inclusion.
  • Other macro- and microelements such as calcium, magnesium and zinc are included in the fertiliser costs.
  • The cost of fuel includes pre-harvest and harvesting costs with the assumption that own machinery is used.
  • The cost for soybean seed reflects a combination of own and purchased seed.
  • There will be large fluctuations for insurance cost (hail) based on the associated risk in respective areas. It is advised that producers adjust this cost based on their individual premiums.
  • It is important to note that overhead costs are not included and should be accounted for.
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