Getting a better result from autumn pasture renewal could be as simple as taking a second look at your paddocks before you spray them out this season.
It’s your last opportunity to find out how many weeds are already present, what species they are and what you need to do to get rid of them.
Nufarm development specialist Cynthia Christie says even if other parts of the pasture renewal process have been well prepared, this final check can make all the difference between success and disappointment.
That’s because one of the single most common causes of sub-optimal pasture establishment and persistence is drilling new seed into soil which is still full of weeds.
“The weeds almost always win. They’re faster growing and more competitive than pasture seedlings, and if they’re not removed, they will compromise your result from day one,” says Cynthia.
Spraying out with WeedMaster® TS540 plus Pulse® Penetrant prior to sowing is the first step towards establishing strong, persistent new pastures, regardless of whether they are being planted into ex-summer cropping paddocks, or grass to grass.
Cynthia says by checking paddocks before sowing, farmers can find out if they also need a companion herbicide with WeedMaster TS540 to broaden the spectrum of weeds killed.
“There are some weeds which the glyphosate molecule does not control, which you definitely do not want in your new pasture,” she says. “They’re not always present, but if you miss them now, you miss your last chance to get rid of them.”
One example of where a companion herbicide is often required is summer cropping paddocks which are earmarked for new perennial or annual ryegrass pasture this autumn.
“These paddocks are usually full of weeds in the first place, which is why they were cropped, and they may have come through summer with many of those weeds still present.”
In this situation, tank mixing Nail® EC herbicide with WeedMaster TS540 and Pulse helps eradicate broadleaf weeds such as creeping mallow, seedling storksbill and nettles.
Nail EC is rainfast in one hour and has zero plantback and grazing withholding periods, so farmers don’t face extra delays during an already busy time of the year.
Christie says another scenario where companion herbicides are commonly used is existing run-out grass paddocks which need to be completely sprayed out before being sown in new pasture.
“This is particularly important when you’re planning to direct drill or use conservation tillage to establish new pasture, because without cultivation you are 100% reliant on your herbicide.”
For example, if established docks and buttercup are present in this context, farmers can get better weed control before sowing by spraying out with a tank mix of Charter™ 750 WDG with WeedMaster and Pulse Penetrant.
Areas sprayed with Charter 750 WDG should not be grazed within seven days of being sprayed and crops or new pasture should not be sown within 14 days. Charter 750 WDG is rainfast four hours after application.
For more tips on getting the best out of your autumn spray out this season, have a chat to your local Fonterra Farm Source representative today.
®WeedMaster, Nail and are registered trademarks of Nufarm Ltd. ®Pulse is a registered trademark of Nufarm Technologies Ltd. ™Charter is a trademark of Nufarm Australia Ltd. ©Copyright Nufarm 2016
Article supplied by Nufarm NZ