Wednesday, 28 September 2016

yummex Middle East: Double-digit Growth for the 10th Anniversary

yummex Middle East: Double-digit Growth for the 10...

  The international trade fair for sweets and snacks in the MENA region, yummexMiddle East, which...

UK’s Best New Fish and Chip Shops Announced

UK’s Best New Fish and Chip Shops Announced

 The UK’s top 10 new fish and chip shops have been announced by the 2017 National Fish and Chip Aw...

Show Review: Over 300 Exhibitors at PotatoEurope 2016

Show Review: Over 300 Exhibitors at PotatoEurope 2...

 The 300 exhibitors present (25% more than in 2008) were able to meet with their customers, at Pot...

ConAgra Foods Acquires Frontera

ConAgra Foods Acquires Frontera

 ConAgra Foods has announced that it has acquired the packaged foods businesses of Frontera Foods and R...

Three New Appointments for tna’s Asia Pacific Team

Three New Appointments for tna’s Asia Pacific Team

 Food processing and packaging supplier tna has expanded its team in Asia, with the appointments of a n...

JBT Corporation Acquires Cooling and Applied Technologies

JBT Corporation Acquires Cooling and Applied Technologi...

 JBT Corporation, a global technology solutions provider for the food and beverage industry, announced ...

Key Technology Introduces VERYX Belt-Fed Digital Sorters to Europe

Key Technology Introduces VERYX Belt-Fed Digital Sorter...

 Key Technology introduces its VERYX belt-fed digital sorters to the European food processing industry ...

Case Study: Ishida Helps Spanish Snack Manufacturer to Grow

Case Study: Ishida Helps Spanish Snack Manufacturer to ...

 Aperitivos y Extrusionados (Apex), now one of Spain’s top three snack food manufacturers, uses Ishida ...

GEA to Present Equipment Portfolio at Chillventa

GEA to Present Equipment Portfolio at Chillventa

  From October 11 to 13, 2016, Chillventa will turn the trade show fairgrounds in Nuremberg into an in...

Nigeria Has a New Potato Processing Plant

Nigeria Has a New Po...

 A USD120m potato farm and processing plantis underway in ...

DQ System Launches Potato Skins Snack

DQ System Launches P...

 Dairy Queen brand has unveiled a new line of oven-hot sna...

US Processed 5% Less Potatoes in 2015

US Processed 5% Less...

US potatoes used for processing totaled 280 million cwt, d...

Lay’s Chalet Sauce Potato Chips Available in Canadian Retail

Lay’s Chalet Sauce P...

  Frito-Lay Core Global Brands, PepsiCo Foods Canada, a...

Cambodia Opens First Potato Research Centre

Cambodia Opens First...

 With potato consumption continuing to rise in the Kingdom...

Land-Grant Universities Bolster the US Potato Genebank’s Impact

Land-Grant Universit...

 Land-grant universities are collaborating to support the ...

New Variety of Innate Potato Approved

New Variety of Innat...

  The J.R. Simplot Company has completed a voluntary cons...

The Use of Nicotine-based Pesticides Limited in Minnesota

The Use of Nicotine-...

  Seeking to reverse a decline in bees and other pollinat...

Greenpeace Issues Blacklist for Pesticides in EU

Greenpeace Issues Bl...

 Greenpeace Germany has recently published a new version o...

Costs of Developing GM Potatoes Comparable to Conventional Varieties

Costs of Developing ...

  The cost of developing GM potato varieties is in fact n...

Nitrogen applications for potato crops can be managed accurately for optimum yields and to reduce nitrogen leaching, a Plant & Food Research scientist told the international potato industry members gathered at the 7th World Potato Congress in Christchurch on Monday 23rd March.

Dr Brown says successful nitrogen management is the application of just enough nitrogen to ensure crop yield is not limited. "Too little nitrogen will result in lost yield and too much has the risk of nitrogen leaching which is a waste of money and an environmental hazard," he says. Key to getting it right is finding out the level of nitrogen in the soil in which the crop is to be planted. Each season the nitrogen soil levels vary from paddock-to-paddock and it is recommended growers measure levels in each paddock at the start of each season. This involves testing soil from 60cm below the surface.

Testing nitrogen levels is not new, although in potato crops, until recently it was more common to test nitrate levels in the plants themselves. However, the information gleaned is not nearly as useful as that attained from the soil. Accurate soil tests give a start point for calculations of nitrogen movement in and out of the crop during the growing season. Models have been developed for day-to-day changes in nitrogen uptake by a crop and the leaching that may take place, says Dr Brown. Factors that influence uptake and leaching are specific to the paddock and season so nitrogen calculations should be done for individual crops, he says.

Crop management tools like the web-based potato calculator are flexible to take the crop-specific information in any given season and calculate crop needs for defined yields. The demand for accurate nutrient applications coupled with the advent of tools like the potato calculator means the days of fertilising by recipe, or making decisions on inaccurate tests, are nearly over says Dr Brown. Growers already using the potato calculator are saving money on fertilisers and don't risk nitrogen leaching into waterways.

For more information contact:
Dr Hamish Brown
Tel 03 325 9394
Mob 027 226 1166
Email This email address is being protected from spambots. You need JavaScript enabled to view it.

source: www.potatonews.com

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