Yellowing of leaves of cucumbers - the phenomenon very frequent, and the problem is so widespread that many gardeners do nothing for elimination of illness at culture. And in vain, in most cases it leads to reduction of fertility of saplings, and in certain cases and death of the whole bushes.
At once It should be noted that yellowing of leaves at the edges is only the beginning of withering, later time if not to undertake any measures, then leaves will turn yellow entirely, and then at all it is faded. Therefore it is not necessary to neglect the phenomenon, it can lead to death of plants. From the main reasons of the events it is possible to allocate:
- lack of moisture;
- lack of nutrients;
- lack of light;
- temperature drops;
Now we will deal with each point in more detail. So, leaves of cucumbers because of the wrong watering rather often turn yellow. Perhaps, everyone knows that cucumbers - culture hygrophilous therefore scarcity of water inevitably leads to yellowing of leaves. From this it is necessary to draw conclusion that it is necessary to water culture competently - 3-4 times a week, and it is rather abundant that water has impregnated soil not less, than on 10-15 cm.
The cultures of family pumpkin to which the cucumber just belongs are rather exacting to fertilizing. Especially love these plants nitrogen fertilizers. Therefore it is important to prepare competently before landing bed, namely to bring in it up to 2 buckets of the rerotting manure on square meter of soil. If the procedure has been missed, then during abundant fructification saplings it is possible to feed up urea or infusion of weeds. It should be noted that with large number of ovaries the cucumbers often lack power supply, in this case the best exit - to prishchipyvat the weakest escapes.
The shortage of light - one more reason of yellowing of foliage. Cucumbers - culture photophilous, however direct sunshine she not especially favors. Most well the plant develops on the beds which are slightly shaded by trees, at the same time in full shadow the saplings perish. Here it is important to find ""golden mean"" between light and shade.
Temperature drops also affect culture not in the best way. If you have noticed change of color of foliage, then first of all take care of temperature condition for saplings: if it is necessary, then warm hotbed, do not forget to close doors and window leaves of design for the night. In the mornings air the greenhouse, do not allow heating of air in it higher than 30 degrees.
Well and finally It should be noted if yellowing of leaves happens at the end of summer, then it is quite natural, culture grows old and the similar phenomenon grows old regularity. However if you do not accept the similar course of events and you wish to prolong a little more life of bushes, then do not neglect fertilizing.