Then everything is not like it should be, and each of the processes that should occur in the plant is somehow disturbed, and certainly slowed down. If wheat, rapeseed or potato is to yield well, then certainly nutrients must be in abundance.
Waiting for deficit symptoms is a mistake. This is because plants show nutrition deficiencies at a very late stage. Before leaves begin to discolour, deform or shoots exhibit dwarfism, yield reduction occurs
It should be remembered that plants first show a latent deficiency of a macro or micronutrient, which can even lead to a reduction of yield by 30–50%, and at the moment of a very strong intensification of the deficit, symptoms can be seen on the crop. Before you can see the symptoms in the field, the yield has already been
reduced.
Therefore, nutrients should always be applied in a preventive manner! Waiting for visual signs of deficiency in plants is an agrotechnical error.
Descriptions of symptoms of micronutrient deficiency in plants have been developed on the basis of a scientific publication entitled: “Fizjologia roślin” edited by Jan Kopcewicz and Stanisław Lewak.
It is often the case that when you see discolouration or plant deformations in the field, you look for an explanation of what that might mean. Scientists have created a cheat sheet that is ver y helpful in such situations.
Only a professional laboratory test will give you 100% certainty about what is in deficit in your plants. However, using the above graph and analysing the applied fertilisation technology and soil, you can often manage to unravel the puzzle.
