Bio-Tech Organics has worked with grape growers since the company started back in 1993. Many grape growers have certified their vineyards as ‘organic’ as they are generally easy to convert. Certified and allowable products like Twin N, Pyro Ag, Tri-Kelp, Amino Max, Nutri Life Bam, Super Active, OF30 K-silica, FF50 Bio-Humate, Liquid Humus, Fulvic acid and K-Rich are used in these crops. There are other products like liquid fish, liquid kelp, liquid guano, liquid lime etc, that are also allowable. So this helps to cover a lot of areas where soil/mineral balance is concerned.

Organic Grapes

Nitrogen-Fixing Bacteria in Vineyards

Greatly Reduced Nitrogen Inputs

Twin N™ in Vines – Significant Reduction of liquid Nitrogen- now converted to ‘Organic’

Over the past 10 years one of South Australia’s major wine producers located in the Riverland, has trialed and now incorporated Twin N into their vineyard programs with tremendous success. The area applied being over 300ha.

Angoves ‘Nanya’ vineyard applies Twin N™ to 1000 acres of organic grapes with no loss of yield compared to conventional blocks and basically the same yields (variety to variety) organic vs conventional. The conventional vineyard has been certified ‘organic’ for a few years now after the reduction of applied liquid nitrogen (UAN) of 40 units, down from 50 units of N to just 10 over the first couple of seasons using Twin N. This was a reduction of 80% and contributed huge savings to production, not to mention the reduction of their carbon footprint and benefits to the environment. The whole vineyard now receives just Twin N as the main source of Nitrogen.

Vineyard Manager Nick Bakkum says he is a ‘real fan of Twin N’, having witnessed the results for himself over the last ten seasons, after a small trial in 2008/09 proved successful. “The product is very easy to apply, and we have not seen any loss of yield where we have used it. We have reduced nitrogen applications considerably and both yield, and quality is on par with what we are looking for. I’m very happy with Twin N. We are using the product on a large scale now and not just a small area’, says Nick. In fact, if anyone is considering TwinN for their vineyard he would be only too happy to talk to them about the benefits Angoves has achieved with this product.

Correct application is critical to the inoculation of Twin N through plant root systems, and soil moisture via fertigation is vital to the proliferation of the organisms. Angoves applies adequate irrigation to wet the soil profile a couple of days prior to applying Twin N, where it is then washed down into the root zone upon application. Only 2 CFUs/m2 is required to inoculate the vines. The organism then gradually builds within the vascular system where complete inoculation occurs after 8-10 days. Twin N is applied only once on vines, anywhere between bud-burst and pre-flowering. Ideally, application could be made when vines are actively growing.

Considering its ease of use, reduced carbon footprint (zero, compared to synthetic applied nitrogen), the production of only ammonium nitrogen (no nitrate) and the cost (from $26-$30 /ha), Twin N is a game-changer when it comes to nitrogen application in vineyards.

Click on the link below to access our Vinyard Program

Booklet Nutrition farming for vineyards