In terms of abiotic stress in plants grown in the garden this time of year (especially greenhouses, cucumbers, tomatoes …), the correct mode of fodder and good knowledge of the thermal needs of the particular vegetable crop has an important role in the maintenance of vegetative and generic growing the plant.
From macro biogenic elements (nitrogen, phosphorus, potassium), under abiotic stress caused by low air and soil temperatures, potassium, unlike nitrogen and phosphorus most positive act on the plant and causes “depreciation” of abiotic stress.
Namely, potassium as macro biogen element does not participate in the construction of any molecule, so its role in plant mostly comes down to the regulation of the opening of stems and activation of several types of enzymes.
Intensive nourishing with potassium fertilizers (depending on the growth and development of the plant, some symptoms of deficiency of some element) in this period, increases photosynthesis, growth, yield and better submitting abiotic stress caused by low temperatures.
In conditions of low temperatures, changing fluidity of cell membrane.Intensive adding potassium nutrient solution increases the percentage of phospholipids in the cell (phospholipids to increase the fluidity of the cell membrane), the permeability of the cell membrane and improves the biophysical and biochemical properties cell.
The application of potassium fertilizers in terms of low air and soil temperatures, even more than “allowed” for a particular culture, in any case contributes to the natural resistance to certain plant pathogens, as well as prepare the plant for better filing abiotskiot stress caused by low temperatures, while continuing vegetation and iskoristuvnjeto maximum genetic potential of the plant.