At cultivation in house conditions of seedling of tomatoes many sometimes face various problems. One of them - the lower leaflets at seedling hang, turn yellow, dry out and plants lag behind in growth. Why does that happen and how to help seedling?
Are the most frequent reasons of usykhaniye of the lower leaflets at seedling of tomatoes: soil, watering, lighting, power supply, diseases and wreckers.
The first reason: the sucking wreckers. It is possible to determine their presence by small points on the turning yellow leaves if to take magnifying glass. Not always gardeners pay attention to purity of windowsills where the set of various seedling during spring season is grown up. To it it is added nearby the standing house flowers where various mites, tripsa, etc. also often live. In this case processings by biological products fitovermy, bitoksibatsilliny not only seedlings, but also window plants will help.
The second reason: excess of fertilizers at early age and the small volume of the soil. So-called ""salinity"" of soil mix when undeveloped backs suffer from high concentration of salts, causes poniklost and yellowing of leaves. And, on the contrary, at lack of power supply and the insufficient size of capacity there is starvation of seedlings. Here it is necessary to look for golden mean. To feed up seedling small doses of water-soluble fertilizers in process of growth of seedlings.
The third reason: soil and watering. Even if it is acquired from the reliable producer, not the fact yet that the components which are its part are ideally mixed, and soil is suitable for tomato seedling on acidity. All producers use peat which is mixed with limy materials. And, if it has the increased acidity, then seedlings not in full can use nutrients. Tomatoes need subacidic soil.
At excess modulation of seedling the root system chokes with lack of air. Also yellowing of the lower leaves begins. Diseases also are connected to such troubles (black leg, fuzariozny withering, etc.). It is possible to correct situation having added ashes to the soil, having reduced watering, having processed the soil before crops of seeds bio diseases medicine (fitosporiny, gamairy, etc.).
The fourth reason: lighting. Without due lighting the photosynthesis works for seedling poorly. Seedling is strongly extended and the lower leaves turn yellow. Fertilizing at lack of light is badly acquired by plants. To grow up seedling in February without additional lighting netseleobrazno. It is better to postpone until March when there are more sunny days and the daylight hours increases.
Also availability of dry air from electric heaters will be important during cultivation of seedling. Streams of dry air dry up gentle leaves of seedling of tomatoes. At opportunity isolate batteries, having covered them with veneer sheet or having placed jars with water between pots with seedling.