Foliar fertilization in hop growing
An optimal plant nutrition will be the key for successful hop growing. The essential macro nutrients are nitrogen, phosphorus, potassium and magnesium which can be applied as soil fertilization.
Besides the standard soil analysis, the complex plants analysis for all macro and micro elements can help to analyse and understand the level of supply for each nutrient to optimize nutrition for high yield and quality.
The best time for the complex plant’s analysis will be middle of June till the end of July if leaves are fully developed.
Our own research has shown over the last years an undersupply with phosphorus and potassium in more than 50% of all samples.
The potassium deficiency will be visible and indiacted by brightening of the older leaves from the leaf edge, later visible as “burned” leaf edge.
With a phosphorus deficiency, leaves will remain small and brown- green coloured.
In terms of micro nutrients – zinc and boron are most important for hop growing. A high pH-value of the soil in combination with a high level of phosphorus can block and limit the zinc availability (picture on the left) and causing zinc deficiency. Symptoms are reduced growth, discoloration of leaves to light green in combination with twisting (“curly top”).
The hops lose their ability to grow, the number of blossom decreases until they are completely sterile. The hops will look like nettle, with small and sharply toothed leaves.
But also a boron deficiency can cause a poor flowering and reduced fruit setting. The reason for boron deficiency can be an oversupply with nitrogen and calcium, cold and wet weather conditions and high pH-values.
For ideal growth and high yield, we recommend the application of Lebosol®-Zink 700 SC 3 – 5 times with a dose rate of 0,3 – 0,5 l/ha in combination with Lebosol®- AqueBor SC with 1 - 2 l/ha.
Resistance and vitality
The application with phosphonates - Lebosol®-Kalium-Plus - can help to keep plants healthy and strengthen the vitality. The plants are more robust and less susceptible for diseases.
Several treatments with Lebosol®-Kalium-Plus, beginning at a growth height with 0.5 m, can enhance plants health and quality.
Aminosol® - to prevent damage by hair game
Aminosol® can be applied to prevent browsing damage by game. Aminosol® is produced from animal protein from food production. This protein is splited by enzymes into amino acids. This creates the typical Aminosol® smell. Hair game is perceiving this smell intensively and avoiding fields which are treated with the product.