There are both summer-fruiting and autumn-fruiting raspberries. As is the case with blackberries, the most commonly grown raspberry varieties have a two-year cycle. The first year is cane growth and these won’t fruit until the second year (summer raspberries). Conversely, autumn raspberries already produce fruit in the first year.
When growing propagation material, particular attention has to be paid to good root development and to limiting plant stress; both are boosted by actively stimulating plant resilience. Biostimulants have been developed specifically for this purpose, so adjust your cultivation strategy accordingly. Focus on this not only during propagation but also when the raspberry plants are in full production.
During cultivation/propagation, the raspberry plant is especially susceptible to, for example, a lack of moisture or heat. How the plant deals with this largely depends on its growth balance and resilience. To optimise this growth balance and resilience in (particularly) a natural way, we recommend that you treat the parent plants and root blocks weekly with SalicylPure. The willow bark extract in SalicylPure promotes root development in particular. This results in planting materials that grow quickly from the very start. Furthermore, a more resilient crop has a greater capacity to absorb water and nutrients throughout propagation.
Application of SalicylPure during the propagation of raspberry plants results in a better root system, good root quality and a high number of canes. Application on the root blocks results in many additional cuttings; 50% more cuttings is no exception!
As is the case during propagation, growing conditions are often critical and stressful for cuttings that have been planted out. Particularly in the early days, this propagation material requires ‘a little extra’. ArgicinPlus is our ‘green booster’; it also contains willow bark extract, along with silicon and colloidal silver. Under stressful conditions, ArgicinPlus boosts plant resilience and total production. It promotes the plant’s capacity to absorb water and nutrients.
Recommended dosage/advice for use – SalicylPure and ArgicinPlus (raspberry propagation)
To make the young commercial crops resilient and especially to grow firm fruit, we recommend drip feeding SilicaPower every week. SilicaPower is a biostimulant, that contains a high concentration of silicon that is easily absorbed by the plant. It literally strengthens cell walls and makes them firmer. If your crop has to deal with rapidly worsening stress conditions whilst growing, such heat or drought, switch to a weekly schedule of ArgicinPlus instead of SilicaPower.
Research by Delphy ISFC into the commonly grown raspberry variety Tulameen demonstrates the added value of SilicaPower. Particularly when harvesting and storing the fruits, they are firmer with fewer broken off drupelets.
Recommended dosage/advice for use - SilicaPower and ArgicinPlus (commercial raspberry growing)
Providing your raspberries with sufficient clean water every day isn’t something that can be taken for granted. A basin full of algae or a blocked dripper can easily throw a spanner in the works. Stay ahead of problems by using our water-maintenance products - Blue Bac-1 and Blue-Bac-2 – every month. These bacterial products will clear your basin or silo, but will also prevent blockages and stop a 'green film' from forming.
Blue Bac-1 is a bacterial product based on useful and harmless bacteria. These bacteria make short work of algae growth and also assist in the digestion process of dead algae. This will clean your basin and/or silo and they will remain clean.
Recommended dosage/advice for use - Blue Bac-1
The Bacillus bacteria in Blue Bac-2 help to clear organic contaminants from your irrigation system and drippers. The bacteria in the water-maintenance product produce enzymes that form a natural ‘coating’ which organic contaminants, such as sand, cannot adhere to. The use of Blue Bac-2 also stimulates root development of raspberry plants.
Recommended dosage/advice for use - Blue Bac-2
Tip – take care with hydrogen peroxide
The recommended products, SalicylPure, SilicaPower and ArgicinPlus, cannot be used in irrigation water to which hydrogen peroxide (H2O2) has been added. Contact our advisor Alwin Scholten to discuss our solution if you nevertheless wish to use hydrogen peroxide in addition to the recommended products.
Blue Bac-1 and Blue Bac-2 are natural alternatives to H2O2 or other chemical disinfectants.
More information?
Do you have any additional questions, or would you like tailor-made advice concerning your own cultivation situation? Contact your dealer or Alwin. Alwin can be contacted on telephone number +31 (0)6 49 33 49 30, or by email on alwin.scholten@plantosys.nl.
From vigorous cutting to healthy plants: our 100% natural products can effectively increase plant resilience. Your raspberry plants will grow into a healthy, vital crop, the result being a good yield.
