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Time for Agravita® micro-nutrient foliar fertilisers in winter rape

The foundation for a future winter rape crop is built during the autumn growing season. Thus it is extremely important in this period to properly maintain an adequate supply of the necessary macronutrients and micronutrients for the plants. In addition to fertilisation with phosphorus and potassium, supplying plants with essential micronutrients in the autumn period plays an important role. In order to produce 1 ton of seeds with an appropriate amount of straw, rape needs 100 g of manganese, 60-150 g of zinc, 60 g of boron, 10-40 g of copper and 1-2 g of molybdenum. The supply of boron, manganese and molybdenum to plants is of particular importance during the autumn vegetation of winter oilseed rape. The purpose of using these micronutrients is to optimise the productivity of soil-based macronutrient fertilisers, stimulate root system growth, and build the large assimilative surface area necessary to efficiently convert solar energy into carbohydrates. The foliar application of micronutrients should be performed from the 4-6 leaf phase, which contributes not only to the proper development of the plants but also to their better preparation for winter dormancy.

Agravita® Boron 15

Boron in an easily assimilable form
boron ethanolamine

Dosage: 1-3 l/ha
Time of application:
autumn, from 4-leaf phase

Boron (B) soluble in water
11.0% m/m I 15.07% m/v I 150.7 g/l

Agravita® Boron 15, when applied during the autumn vegetation period, ensures the proper development and formation of the root system of rape and prepares the plant for winter. Participates in protein biosynthesis and affects the mechanical strength of cell walls. Increases resistance to low temperatures by increasing lignin saturation of cell walls. It improves the efficiency of plant fertilisation with nitrogen, phosphorus, potassium and magnesium and regulates calcium balance in the plant. Boron deficiency in the autumn may lead to reduced development of the underground parts of oilseed rape, which can be seen as a hollow space in the roots. At a later stage, this can result in deformed, withered leaves and a spoon-shaped, downward curl of the leaf blade that turns reddish-purple.

Agravita® Micro

The power of micronutrients

Dosage: 0.7-1.5 l/ha
Time of application:
autumn, from 4-6 leaf phase

Total nitrogen (N)
3.0% m/m | 3.8% m/v | 38 g/l
Boron (B) soluble in water
0.25% m/m | 0.3% m/v | 3 g/l
Copper (Cu) soluble in water
1.0% m/m | 1.28% m/v | 12.8 g/l
Manganese (Mn) soluble in water
4.5% m/m | 5.7% m/v | 57 g/l
Zinc (Zn) soluble in water
2.5% m/m | 3.2% m/v | 32 g/l

Agravita® Micro stimulates the elongation of young cells. Increases chlorophyll synthesis and photosynthesis intensity, thereby increasing dry matter accumulation. Increases the frost resistance of oilseed rape by increasing the concentration of sugars in cell sap and regulating the metabolism of nitrogen compounds, contributing to the formation of protein nitrogen compounds. Optimises the use of macronutrients and increases plant resistance to stress and pathogens – increases the content of vitamin C, which has an anti-stress effect, and thanks to fungistatic action, reduces the occurrence of fungal diseases.

Agravita® Mo

High concentration of molybdenum in the form of sodium molybdate

Dosage: 50-100 g/ha
Time of application:
autumn, from 4-6 leaf phase

Urea nitrogen (N-NH2) 4.6%
Molybdenum (Mo) soluble in water 35%

Agravita® Mo improves the resistance of plants to drought and diseases. The application of molybdenum during autumn vegetation of winter rape increases frost resistance by reducing plant uptake of nitrates, which increases tissue hydration, and participation in the synthesis of abscisic acid, which helps the plant to prepare for overwintering. A molybdenum deficiency results in cracked leaf blades and impaired growth of oilseed rape despite a good nitrogen supply. This results in bleaching of the main leaf nerves and an upward bending of the leaf blade.