The winter and spring weather conditions have resulted in a range of pod maturities within the canopy. Increasingly growers have drilled hybrid varieties at lower seed rates, plants produce thicker stems and with the application of growth regulators and fungicides there is more moisture left in the plant at maturity.
Desiccation with Roundup Brands will be the key to ensure more timely and reliable harvesting, fewer volunteers, savings in drying costs, and earlier entry to following crop.
What are the main benefits of using Roundup Brands for harvest management?
Far less troublesome combining – 91%
Valuable extra weed control – 82%
Less drying cost – 80%
More reliable harvest timing – 76%
The Timing Guide for Efficient Harvesting of Oilseed Rape
Apply Roundup Brands when the crop moisture content of the Oilseed rape seeds is below 30%. This may be determined visually by following the 3 steps detailed below.
1. Select an area of the crop which is representative of the field. Pick, at random, a total of 20 pods from the middle of the main raceme.
2. Open each pod. If a colour change from green to brown is seen in at least two thirds of the seeds per pod in at least fifteen of the pods picked, the earliest correct stage for spraying has been reached. However, if approximately half the seeds have turned brown, the crop should be ready in 3 days, but repeat the procedure to check that the correct stage has been reached. NB. Spraying too early will lead to poor desiccation.
3. Repeat the procedure in other areas of the crop to check assessment is applicable to the entire field. Spray within 4 days, unless the weather is very cool, then the window can be extended to 7 days.
Harvesting – The statutory harvest interval is 14 days, up to 21 days may be necessary before combining .
Weed stage – For effective control of weeds they must be healthy and actively growing. Weeds that have senesced or died back or are suffering from drought may not be as susceptible.
For further advice on improving your harvest management visit https://www.monsanto-ag.co.uk/ireland/oilseed-rape-harvest-management/