Australian Company Helps with Kiwifruit Crisis
Friday, February 22nd, 2013
The New Zealand kiwifruit industry is in serious trouble as growers battle the rapid spread of Psa, a bacterial canker disease that has seriously impacted most of the kiwifruit growing regions in the world. 52% of the NZ industry has now been affected and all efforts to halt the virulent disease have proved unsuccessful at this point. Graeme Sait, CEO of leading biological company, Nutri-Tech Solutions (NTS), recently returned from New Zealand where he has been consulting with growers and the key industry body, Zespri, to expand the resistance effort. (more…)



NTS Soluble Humate Granules™ have proven to be the flagship NTS product in a massive range of options. In over 40 countries they are our most successful biological input. All that we need to do is encourage a grower to trial the combination of soluble humates with their fertiliser and they will immediately see the benefits (and they have often now begun their journey into biological agriculture).
When most of us consider the problems linked to chemical intervention in agriculture we commonly think of the potential for chemical residues on food and the associated assault on our immune systems. The more biologically astute might also think of the damage these chemicals have inflicted on soil-life and the fact that one chemical begets another and consequently the disease control capacity of the soil foodweb is increasingly compromised. However, there is another way in which our food supply is affected by chemical agriculture and it relates to both the plant’s immune system and an unanticipated viscious cycle that is linked to both nitrogen fertilisers and rescue chemicals.
Queensland’s red volcanic soils are some of the most fertile in the world, and they are well suited to the growing of root crops. Root crops, like potatoes and ginger, are demanding feeders that respond well to this superior fertility. However, there are still some common problems associated with these soils, and the most notable of these is related to phosphorus availability. The negatively charged phosphate ion is notoriously unstable. It will readily form insoluble compounds with calcium (tri-calcium phosphate), iron, aluminium and manganese. In red soils, the problem is iron. These soils are coloured red because of an abundance of iron. Phosphate and iron rapidly form the insoluble iron phosphate, and it becomes a constant battle managing phosphorus for high-production fertility. A visit to some Nutri-Tech ginger growers highlights the pain and pleasure of growing root crops in the red zone. 
