RSA Weigh & Win™ National Yield Contest
(Maize, Soybeans and Sunflowers)


Send the completed harvest form to the competition office within 7 days of the harvest, 31 July 2018 latest.

a) Complete the online entry form in its entirety, available on
b) An entry is complete once the form has been submitted, the fees paid and the GPS coordinates of the field given. A confirmation e-mail will serve as proof of entry.
c) Entries are open to anyone above the age of 18, farming in South Africa, planting any registered variety from any seed company.
d) Entries are done in the name of an individual specifically, and cannot be for more than one person, a legal entity, or a trading name.
e) Production practices must be disclosed in full upon request of the competition organisers. By entering, entrants give their consent that yield results and production practices may be published in the media.
f) Any legal use of any input and/or production practice that might increase yield, is allowed.

An entry fee of R1000 per entry can be paid by electronic funds transfer (EFT). You can enter as many times as you like, but only your best entry will count for award purposes. Bank details:

Bank: First National Bank


Account Number: 56160027525

Branch Code: 261-550

Reference: Your initials and surname

h) Your entry fee must accompany the contest entry form.
i) You enter a continuous block of 2 hectares of a single variety.
j) Phone your designated harvest officials at least 14 days before the intended harvest date, to make an appointment.
k) No refunds of entry fees will be issued after an entry is in the contest database.

Entries close on 31 July 2018.

m) The 2 harvest officials will be present for the harvest, where the weight, moisture and area harvested will be confirmed. Upon the discretion of the competition organisers, it may however be required of entrants to supply a preliminary yield result by means of either yield monitors/weigh wagons to gauge the chance of winning. Following such a preliminary yield investigation, it is possible that entrants might not be chosen to progress to the next phase of the competition, where after harvest officials will not complete the harvest process.
n) Send the completed harvest form to the competition office within 7 days of the harvest, 31 July 2018 latest.


a) The contest entry must be harvested in accordance with the harvest procedures described below.
b) Harvest report forms are required to be completed and sent to reach the competition office by 31 July 2018.
a. If the hybrid reported on the harvest report form differs from that on the entry form, the hybrid on the harvest report form will be listed.
b. The organisers reserve the right to contact harvest officials to validate compliance with contest rules. The organisers also reserve the right, with advance notification, to observe any harvest.
c) Again, it is the responsibility of the entrant to see that their harvest report forms are properly completed and sent to the competition office by the designated deadlines.


a) From a field of maize/soybeans 2 hectares in size of one variety, the entrant shall select an area of 2 hectares to be harvested. The contest area may be any shape, but must be in one continuous block.
b) Entrants, and harvest officials, are responsible for giving accurate row lengths for odd shape plots.
c) All end rows/turning rows and the equal number of outermost rows on each side may not be a part of the selected 2 hectare contest plot.
d)  The entrant agrees to harvest the contest field with a multiple row combine harvester.


a) The 2 harvest officials approved on your entry confirmation must be present for the harvest of the contest plot, as well as the weigh in at the grain silo.
b) Harvest officials should be contacted a minimum of 14 days in advance to arrange for the harvest.
c) The organisers reserve the right to appoint harvest officials from time to time, but will strive to maintain a pool of AVCASA qualified Ag-chem agents, in combination with field technicians from the seed and/or fertilizer industry, including suitably qualified sales people, by virtue of academic and/or experientially qualification. Officers of the Protein Research Foundation, the ARC or agronomists from other industries may form part of this pool, as well as employees from the crop insurance industry, university researchers etc.
d) Harvest officials cannot be the following:
a) The contest entrant
b) An employee or relative of the contest entrant.
e) Harvest officials are responsible for:
a) Must be present during harvesting, weighing (gross and tare) and moisture testing
b) Field measurements
c) Completing all computations
f) Harvest officials must have the entrant run his combine and the transfer auger empty to make certain no grain has been left in it by mistake. All wagons or trucks must be checked to make certain they are empty.
g) The entrant is responsible for sending the information to the competition office.


a) Preferred measurement tools are a tape or chain.
b) Measuring wheels are acceptable for measurements, but cannot be operated from a motorized vehicle.
c) Checking wheel calibration accuracy is recommended.
d) Each measurement must be recorded on the form submitted to the RSA Yield Contest office.
e) Proper tape and chain measurements are taken with the measurement tool pulled tight but not off the ground surface.
f) Row Length: If the rows are all the same length, measure the length of one row and record same length for each of the rows harvested. If the rows are not all the same length, measure down the center of each set harvested and record the length for each of the rows in the set. (On pivot irrigation, do not subtract wheel space).
g) Row Width: Record the row width based on spacing of the planter row units.


The total row length (accumulated length as if one row was harvested at a time) times the row width divided by 10 000 equals hectares harvested.


The entrant will harvest 2 hectares in the presence of the harvest officials, and fill his grain transport containers with the grain from these 2 hectares, after which the grain will be taken to the local co-op scale for weighing.


An experienced person must make a moisture determination of a representative sample of the grain. It is best to have the same sample run through the meter three times and take the average of the three. Moisture percentage must be noted or a moisture ticket must be attached


All calculations must be carried to four decimal places. First, find the number of kilograms of grain harvested, corrected to 12.5% moisture in the case of maize, then divide by the hectares harvested to get yield per hectare.



If an entrant enters two or more varieties, only the highest ranking entry will be considered for a prize in that specific category.

b) Awards will be given to first, second and third place winners of all the categories, apart from the irrigation category for maize, where the first, second, third, fourth and fifth place winners will receive awards.
c) Awards will be presented at the awards ceremony in August 2018.
d) Finalists will be invited to attend the awards function.
e) Winners may be required to share their practices on the applicable yield conference to be held following the conclusion of the contest.


a) Harvest forms need to reach the competition office by 31 July 2018, and within 7 days after completion of the harvest.
b) No information on contest results will be released until the results are printed. There will be no exceptions. Results will be released on or before 30 August 2018.
c) Decisions of the competition organisers in all matters are final. The competition organisers reserve the right to disqualify any entry without a refund for violation of these stated rules.