Foliar fertilization in tobacco
Foliar fertilization can be done preventive as integrated part of the fertilization strategy or if it comes to visible symptoms because of nutrient deficiency.
Besides soil analysis, the additional leaf analysis can help to analyze and recognize the availability for each nutrient.
Availability of nutrients
Many parameters in the soil can limit the availability of nutrients – high pH-values can block micro-nutrients, low pH-values can block macro-nutrients. But also dry and cold weather conditions, soil texture and some nutrient antagonism (e.g. oversupply with potassium vs. magnesium) can cause some nutrient deficiencies.
Specific nutrient demand for tobacco
In order to achieve a high quality of the leaves, most important will be a balanced soil nutrition with nitrogen, phosphorus and potassium. The additional foliar fertilization with manganese can help to overcome manganese deficiency in case of a high pH-value of the soil.
Root growth and early plant growth
The amino acids in Aminosol® are stimulating the root growth because of physiological effects. Aminosol® will enhance the growth in general of young plants. We recommend to dip the plant trays directly in an Aminosol® solution or to apply Aminosol® after the planting (“watering”)
Resistance and vitality
The application with phosphonates - Lebosol®-Kalium-Plus or Lebosol®-Magnesium-Plus - can help to keep plants healthy and strengthen the vitality. The plants are more robust and less susceptible for diseases, e.g. Peronospora tabacina (enhanced formation of phytoalexins, cell wall thickness and enzyme synthesis). Several treatments with Lebosol®-Kalium-Plus or Lebosol®-Magnesium-Plus will enhance plants health and quality.
Leaf quality and -colour with manganese and magnesium
A foliar fertilization with Lebosol®-Mangan GOLD SC can be required by high pH-values (pH >6.5) and visible symptoms of the younger leaves (chloroses).
Especially on sandy light soils or soils with high potassium content and under difficult weather condition (cold and wet) a magnesium deficiency can occur. This will be visible with yellow and brown leaves which later die back. The foliar application with Lebosol®-Magnesium 400 SC can help to optimize nutrition with magnesium.
The product Lebosol®-MagSOFT SC is containing additional sulphur and can be used for the application of magnesium and sulphur in one formulation. Magnesium will enhance quality of the tabacco, sulphur will optimize utilization of nitrogen in the plant.
Potassium is essential for the “glowing” quality of the tobacco, phosphorus is influencing cell structure and leaf maturity.
Under certain weather conditions, potassium can be shifted into the soil and deficiency symptoms, e.g. necrosis on the leaves and leaf edges, can occur.
Cold and wet weather situations in spring combined with a less developed root system can lead to a phosphorus deficiency. Visisble symptoms will be the red colouring of the leaves.
The application of the chloride-free solution Lebosol®-PK-Max (combination of phosphorus and potassium) will ensure best nutrion and quality of the tobacco.
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.