Yellowing of foliage of tomatoes says that culture conditions of keeping are not met. In certain cases diseases of saplings which, in turn, also develop because of leaving violation of the rules are the reason of the events.
Cultivation of seedling of tomatoes - not it and simple occupation. Only knowing special subtleties of care for culture, it is possible to grow up strong saplings which in the subsequent will yield excellent harvest. Comfortable conditions are very important for tomatoes therefore it is necessary to contain seedling in due form, providing it certain temperature condition and lighting, watering and fertilizing. The neglect these rules negatively affects young plants, first ""calls"" of the wrong leaving - yellowing of foliage. So, change of color of leaves of seedling with green on yellow always says that in plant processes of power supply of foliage are broken. Such violations can arise for many reasons:
- because of lack of light;
- because of lack of moisture;
- because of lack of oxygen to horses;
- because of deficiency of nutrients;
- because of diseases.
At lack of light natural processes of photosynthesis are broken, foliage of seedling begins to brighten and if not to take any measures, then plants become pale green or yellow, at the same time small stalks of saplings are extended, weaken. It is impossible to receive good harvest from such plants therefore at the slightest suspicion on the shortage of light seedling needs to provide additional lighting.
The lack of moisture also leads to yellowing of foliage. It is known that any nutrients from the soil of plant absorb only with water and if soil dry, then and power supply saplings do not receive. Naturally, it leads to hunger of plants. Right there It should be noted that even if in time to water saplings, but at the same time to neglect fertilizing, then their foliage can also turn yellow. The same reason - seedling starves.
Backs receive lack of oxygen in two cases - loosening of soil and systematic overwetting of the soil is not made. Only having adjusted these components it is possible to solve problem of shortage of this element.
Well and at last diseases. In most cases if seedling of tomatoes also gets sick, then the reason for that - fungal diseases. Illiterate leaving - bad airing of saplings (for example, plants stand on windowsill too closely to each other), excessive overwetting of the soil, lack of light contributes to the development of disease. Will cope with problem it is possible only integrated approach, namely - establishing leaving and processing of culture antifungal medicines.