The latest tomatoes don't grow. What's going on?

Growing tomatoes often encounter a variety of problems, but the biggest headache for growers is that the tomatoes do not grow and the fruit is very small. This will directly affect the economic value and efficiency. And in addition to malnutrition, it is difficult to think of other reasons, often do not know what to do after applying fertilizer. In fact, there are many reasons why tomatoes do not grow, not just because of lack of nutrition. Let's take a look at the details right away.

1. Soil fertility

Loam has the best fertilizer conservation, sandy loam is medium, but sandy soil is easy to lose fertilizer and water, which will eventually lead to the loss of soil fertility. So planting can use loam land, sandy soil, do not use sandy land, if there is no more land, you can improve the soil and add humus and loam. Lack of soil fertility will lead to non-growth.

2. Improper fertilization

Tomato fruit color conversion period is mainly the use of low nitrogen fertilizer, high potassium fertilizer, the fruit contains chlorophyll to the time of drug decomposition, but does not decompose, because the use of too much nitrogen fertilizer, so the chlorophyll does not decompose, can not form lycopene. Potassium deficiency will also affect, photosynthesis will decline, affect color, metabolism is very slow, affect color change. In this way, it is best to use water-soluble fertilizer with high potassium, which should be twice as much as nitrogen fertilizer. Can also be extra-root fertilizer, spray potassium dihydrogen phosphate to supplement potassium.

3. Low temperature in the shed

If it is in the off-season greenhouse cultivation in winter, the external temperature is too low, which will affect the internal temperature. Can not always be ventilated, the air is not good, the sun is not strong in winter. After fruiting, the fruit is not easy to grow and grows slowly. In this regard, it is best to keep above 25 degrees during the day and above 15 degrees at night. You need to use electricity to increase the temperature. It is sunny and open the skylight properly to get some air.

4. Uneven growth

May be vegetative growth and reproductive growth is not balanced, such as fruit, but the branches and leaves grow, too exuberant, so that the consumption of too much nutrition, the result of insufficient nutrition, can not compete with the branches and leaves, it will lead to very small fruit. In this case, it is necessary to pick the heart of the main vine, remove the side branches, and prune some weak branches that do not bear fruit. The growth in this way may be much better, and if there are too many results, it can be properly thinned out.

Tomato does not grow up after fruit, the growth is slow, not obvious, mostly because of malnutrition, lack of fertility, improper fertilization. There are also some special circumstances.