Causes of slow fruit expansion of tomato and its control methods

Tomatoes are common vegetables, planting a wide range, many growers are consulting why their tomatoes expand slowly, even do not expand fruit phenomenon. What was going on? The following small series to analyze for everyone, let's take a look together.

1. The reason why tomatoes swell slowly

1, the variety is not adapted

Some tomato varieties have poor environmental possibilities, are not suitable for local climate cultivation conditions, and have low temperature tolerance in winter. When encountering continuous cloudy days or bad weather at low temperatures, the fruits are not easy to expand.

2. Poor soil fertility

A lot of planting land is sandy land, water conservation fertility is poor, should apply enough organic fertilizer, improve soil, but many vegetable farmers in the application of base fertilizer obviously insufficient, sometimes vegetable farmers only apply ternary compound fertilizer, such fertilizer utilization rate is low, nutrient content is insufficient, tomatoes because of lack of nutrients naturally difficult to apply enough, in addition, sandy land leakage fertilizer, fertilization is unreasonable, resulting in tomato fruit expansion slow.

3. Poor temperature and light

Creating suitable temperature and light conditions for vegetable growth is the key to ensure its normal growth and development. Many sheds have many disadvantages in the transformation, which will lead to poor heat preservation, low transmittance and inability to meet its growth needs, so the expansion speed is slow.

4. Excessive nitrogen application

Excessive application of nitrogen fertilizer is a misunderstanding of fertilization in many growers. Due to the resistance between fertilizers, excessive application of nitrogen fertilizer will lead to the lack of other nutrients, resulting in difficulty in fruit expansion. In addition, excessive use of nitrogen fertilizer will also affect the similarity of other elements, especially potassium, boron, calcium and other elements. At this time, elements are sometimes important substances for fruit expansion, and once lacking, they will affect fruit expansion.

II. Control methods

1. Select suitable varieties of seeds. First, select high-yield varieties with strong resistance and suitable for local planting.

2. Scientifically manage fertilizer and water, mainly organic fertilizer, apply sufficient base fertilizer, enhance soil fertility level, improve water and fertilizer conservation ability, and control the application of nitrogen fertilizer to avoid excessive growth of plants. To increase the application of phosphorus and potassium and boron and calcium and other trace elements, so as to avoid lack of fertilizer tomatoes appear stiff fruit. Cover to improve the greenhouse heat preservation performance and shed film transmittance, so that the greenhouse temperature, humidity, light and other conditions suitable for the normal growth of tomatoes. Control the watering amount, reasonably extend the watering time, reduce topdressing, and enlarge the temperature difference between day and night.

The above is the introduction of the causes and control methods of tomato swelling, I hope to help you, if you want to know more about the relevant knowledge, please pay attention to us.