Strong potatoes start with good nutrition

Robust potato cultivation starts with the basics: the nutrition of the crop. In the pilot 'Sustainable cultivation of consumption potatoes in a chain perspective', growers, processors and other chain partners work together to make cultivation more sustainable. They want to use less crop protection products, nutrients and fresh water, without compromising on yield or quality.

The trial is running on plots with sand, loess and sea clay. Experiments are being conducted with different types of fertilisers and biostimulants to make the plant stronger and more resilient. The first results of thirteen demo trials from 2022 have now been bundled.

What does practice show?

• Plant resistance starts with a well-balanced nutrient uptake.
• In potato cultivation, fertilizers are often applied in the ridge. As a result, the dominant nutrients (NPK) are often released in large quantities at one time.
• Too much of one nutrient can block the absorption of trace minerals (such as calcium, magnesium and manganese). This is called antagonism.
• Trace elements increase tuber formation, reduce (drought) stress and ensure more intensive rooting.
• Large amounts of nutrients (NPK) can affect the hormone balance of the plant, which reduces the plant's resistance.

What can you do?

• Biostimulants can help improve nutrient absorption, but the timing of administration is crucial.
• Pay attention to when and how much dominant elements (such as nitrogen or potassium) you add, so that trace elements are not displaced.
• Ask yourself questions like:
  • When does my crop need which nutrition?
  • How can I use biostimulants to improve absorption?
  • Can I fertilize later or less often without losing yield?

By fertilising smarter and better understanding what your plant needs, you can increase resilience and grow more sustainably.

_{Sources:
Green knowledge network - Project | Pilot Development of sustainable cultivation of consumption potatoes in…}

More information:
Green knowledge network - Potato growers anticipate lower usage standards
Status of resilient cropping systems: arable farming and field vegetables - Groen Kennisnet
Professional information for arable farmers