Onion

Improve resilience for hard onions with good skin retention

Effective and maximum production is achieved by protecting onion haulm and ensuring it remains green for as long as possible. Sufficient nutrients and moisture are essential for a hard and well-formed bulb. The element silicon is a key player when it comes to strengthening cell walls and the epidermis of the haulm and the bulb. It also increases production of the plant’s own compounds, such as phytoalexins, which stimulate the defence system. What other solutions do we offer to improve the yield of your crop?

SilicaPower makes onions harder

Silicon improves the absorption and distribution of calcium and magnesium and helps additional roots to develop. This improves the capacity of the onions to absorb water and nutrients, such as manganese and boron. By making a young onion plant more resilient in this way, particularly when conditions are colder, this will reduce the risk of crop-related problems at a later stage.

Other effects of administering silicon include better root growth, the formation of barriers against diseases and pests, and higher chlorophyl production; more chlorophyl = more photosynthesis = increase in production/yield.

  • stimulates root hair development and therefore the plant’s capacity to absorb moisture
  • enhances the salt resistance of plants e.g. salinity stress induced nutritional imbalance (for example, during drip irrigation)
  • has a regulating effect on turgor in cells (dry out less quickly)
  • through a more efficient light uptake, stimulates the production of chlorophyl ->  more photosynthesis -> more production
  • strengthens the natural resistance of haulm and bulb
  • purest silicon product on the market; no salts added -> has an EC of just 0.02mS.
  • can be sprayed at the same time as mildew spraying
  • can also be used in organic onion growing 

 

Recommended dosage/advice for use - SilicaPower in onions

  • The standard advice for the entire season is a total of 4 litres of our CE marked biostimulant SilicaPower per hectare (8 x 0.5 litres/ha).
  • Dose: 0.5 litres/ha/time as a whole-field foliar spray (total 8x per season).
  • Time: start the first spraying when the 2nd leaf (>3 cm) is visible (BBCH scale 12), repeat spraying at an interval of 7-10 days.


ManZincum ensures extra leafy onion haulm

ManZincum is a fertiliser with CE marking based on manganese and micro-zinc that increases the robustness of onion plants and, like SilicaPower, strengthens the cell walls. The manganese in ManZincum plays a crucial role in chlorophyl and enzyme production for protein metabolism and cell division.

Dosage advice - ManZincum in onion cultivation

The standard advice is to spray weekly with 1 litre of ManZincum per hectare (around 8x per season; starting in the first half of June).

ArgiPura for cleaning packaging (crates) and cold store/storage units

Maximum hygiene on a farm should be a standard operational procedure at every arable farm that grows onions, both during cultivation and storage. Therefore clean machines, packaging and cold store/storage units regularly. For this purpose we have developed the ready-to-use cleaning product ArgiPura. This contains a mixture of soap and traces of colloidal silver and micro-copper. By cleaning, you meet all the necessary conditions for onions that are stored hygienically and effectively. The same hygiene protocol applies, of course, to onion processing plants (sorting and storage).

The use of ArgiPura in onion cultivation

  • ArgiPura can be added undiluted to the detergent tank of the high-pressure cleaning machine to mix with the water.
  • Dose: 1 litre of ArgiPura to 100 litres of water
  • Time: once, before product entry

 

Bespoke advice for your own onion cultivation situation

Would you like advice about your own cultivation or farm situation? Contact your dealer, or our advisor Alwin Scholten. He can be contacted on telephone number +31 (0)6 49 33 49 30, or by email.

Benefits of PlantoSys products in onion cultivation

When you use our products, you can grow without residue, there is no growth inhibition and there are no re-entry restrictions. Furthermore, no safety term has to be taken into account at harvest. Our products are safe for organic crop protection.

Alwin Scholten

Your contact person

Alwin Scholten

+31 (0)6 49 33 49 30E-mail

General director

nldeenruworld

All crops

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