Organic and mineral fertilizers bring at stage of preparation of cucumbers for landing and also in the course of their growth and fructification. Fertilizing is especially important for new hybrids which early begin to fructify.
Organic and mineral fertilizers should be alternated, cucumbers best of all perceive liquid fertilizing. However they need to be brought carefully and gradually, high doses can do much harm to plants. At different stages of development of need of cucumbers for fertilizers are not identical, the first two weeks they need to receive enough nitric power supply, in phase of blossoming the need for phosphorus increases. At stage of fructification recommend to do nitrogen-potassium fertilizing, most of all the cucumbers growing in greenhouses when they lack sunlight need them.
Shortage of fertilizers and its symptoms
At cucumbers the symptoms of shortage of nutrients are shown very accurately. The lack of magnesium does their leaves brittle, they seem burned. Leaves get pale green or yellow coloring, saturated-green are only streaks. The shortage of potassium causes modification of fruits, in grades of which the extended form is characteristic, they grow up round, being gradually narrowed at fruit stem. Leaves get dark coloring, their form becomes dome-shaped. At lack of nitrogen the stalks of plant utonchatsya, the lower leaves hang and turn yellow, and top get pale lime coloring. Cucumbers badly develop, few fruits are formed, at the same time they badly gain weight. When cucumbers lack phosphorus, they cease to grow, ovaries and flowers fall down, and leaves become small with bluish shade.
Fertilizers and methods of their application
Cucumbers or recommend to water and feed up in the morning in the evening, it will help to avoid the mealy dew, bacteriosis and various fungal diseases characteristic of humid environment. Fertilizing begins with the moment of cultivation of seedling, carry out them time in 7-10 days by small doses. Wood ashes are fine natural fertilizer, it protects cucumbers from widespread diseases, the potassium which is contained in it is necessary for plants. Cindery solution is added at the roots or spray with it plant, it is also possible to carry out dusting by the dry sifted ashes. For preparation of cindery solution 1 glass of ashes is dissolved in 10 liters of water then insist within a day. During intensive fructification in mineral fertilizer for cucumbers there has to be more potassium. Add 1 glass of wood tar to solution of azophoska of 10 liters or 20 g of sulfate of potassium. In the first half of vegetation the cucumbers need more potassium, than nitrogen. In organic fertilizer on the basis of manure of ratio of nitrogen and potassium approximately equal therefore it is necessary to add the ashes or other fertilizers containing potassium to it.