How to prevent premature senescence of tomato

When planting tomatoes, premature senescence is no stranger. After premature senescence of tomatoes, the most intuitive thing is to affect the varieties of tomatoes. Moreover, the nutrient absorption function of premature senescence tomato plants will greatly decrease, and its yield will also decline linearly. So how to prevent premature senescence of tomatoes? Let's take a look.

1, increase the application of organic fertilizer

Tomato fertilizer requirements are large, and a large part of its premature aging is due to insufficient organic matter in the soil, resulting in soil hardening, poor permeability, weak plant absorption, and thus premature aging. Therefore, under the condition of ensuring the three elements needed for tomato growth, proper application of decomposed organic fertilizer, farm manure and trace element fertilizer can enhance the organic matter content of soil, improve the permeability of soil and promote the growth and development of roots. Especially in the seedling stage, flowering stage and fruit stage, these things should be applied many times, chemical fertilizer and organic fertilizer should be used alternately to prevent premature aging. In the middle stage of growth, trace elements can be kept for plants by spraying fertilizer on leaves to avoid premature aging.

2. Strengthen water regulation

When the soil is too dry, the absorption capacity of roots is weak, and the transportation of nutrients will also be hindered. For a long time, the plants will appear withered and yellow due to lack of water, and will die due to lack of water. In addition, after the rainy season, when the water or humidity in the field is large, it is easy to cause root rot, which will also lead to premature aging of plants. Therefore, the water should be well regulated, the soil moisture content can be 60%-85%, it should not be too high, it should be watered in time during drought, the best drainage measures should be taken after rain, and loose soil, so as not to harden the soil.

3. Pruning and branching

Branching is also one of the measures to prevent tomatoes from suffering. Pay attention to the time of branching, not too early or too late. For those with weak growth, it is necessary to branch late appropriately. The first branching shall be carried out when the lateral branches grow to 7-10 cm. After the first branching, the lower old leaves and diseased leaves shall be removed, which can reduce the nutrient consumption of plants and prevent diseases and insect pests.

4. Regulate growth

In flowering and fruiting period, proper fruit retention should be carried out, attention should be paid to the balance of vegetative growth and reproductive growth, so as to avoid excessive fruit retention leading to insufficient nutrient supply of plants and fruit drop phenomenon. Early fruit harvest should be advocated to avoid premature aging of plants.

The above is how to prevent premature aging of tomatoes, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.