Reading guide:Growing tomatoes in greenhouses in winter is also nothing new. But if you want your own tomatoes to swell better, it's not easy. It is estimated that some netizens said that I just use bulking agents. Hearing you say that, you know that you are a layman. Bulking agent can solve the problem of swelling, but the core is that the necessary conditions for tomato growth must be available. And bulking agent it is not a panacea, it only plays a role in promoting. Because the bulking agent itself does not have any nutrients. And today we are sharing the problem of expansion speed, which is also the most basic step, which is a primitive operation that many have forgotten.
For the size of tomato growth, the first factor to be excluded is the variety. It is true that the varieties are different, and the differences are indeed relatively large, that is, the differences in genes. And what we are talking about today is mainly about our planting technology. It is also an important factor to promote tomato enlargement, and then some basic factors that affect tomato enlargement. Finally, some key operations to improve the speed of tomato expansion are best two paragraphs, which are the key points of the focus.
Growing tomatoes in greenhouses has a natural disadvantage: it is done in winter. The conditions that affect the growing of tomatoes in winter: cold and lack of light, as well as fertilizer, moisture and indoor temperature. These conditions affect not only the swelling of the fruit, but also the growth of the plant. These factors are also essential in the growth process of tomatoes, and they are also important factors affecting the entire growth cycle. The first step is to overcome it and provide a good growing environment for tomatoes.
That. First, to solve the problem of thermal insulation and heating of greenhouses in winter, this is the most basic solution to the temperature. For how to do this, you can refer to my previous article, in which I will not talk about this point.
That. Second, the intensity and duration of the light, the film of the greenhouse should try to choose a film with better light transmittance, PO film, which not only has good light transmission, but also prevents dew. The more light enters, the temperature can naturally increase, the key effect of promoting crop photosynthesis will be higher, and the nutrients produced will be more sufficient. When necessary, add fill lights in the greenhouse, which can extend the time of light, and many planting greenhouses have now used plant fill lights. The actual effect is very good, directly solving the factor of insufficient light in winter.
That. Third, the problem of water and fertilizer, planting in winter, the water must be just right, otherwise the amount of water will increase the humidity of the greenhouse, which is easy to cause pests and diseases. Fertilizer, must be according to the different growth period of crops, choose different fertilizers, is conducive to the supplement of nutrients. Nitrogen fertilizer is the main fertilizer in the early stage, and potassium and phosphate fertilizer are mainly used in the middle and late stages.
There are two important principles for the growth of crops: vegetative growth and reproductive growth. Vegetative growth can be understood as the growth of plants, while reproductive growth can be understood as the growth of fruits. Vegetative growth is greater than reproductive growth, which is what we often call the phenomenon of all growth. If you want the fruit to grow well, it is to achieve a balance between the two growth modes. This problem is quite simple to say, but the actual operation is still not easy, and it requires rich experience.
That.
1. Control the temperature of the greenhouse, especially to widen the temperature difference between day and night. It is fine at 15-17 degrees at night and around 25 degrees during the day. If the temperature is high at night, it will cause more respiration and will be prone to growth. The increase of temperature difference also promotes reproductive growth.
That.
Second, the management of water and fertilizer, the amount of watering must be controlled, not too much, and the watering interval must be reasonably controlled. Fertilizer should also reduce the number of top dressing, if necessary, foliar top dressing, these are mainly some trace element fertilizers, foliar supplementation and absorption is more direct.
The above are basically some management of the environment, water and fertilizer, which are the most basic factors to ensure the growth of tomatoes. Whether it's greenhouse tomatoes or open-air ones, these are indispensable. The next thing to talk about is the management of the tomato plant itself, which is also an important factor in determining the speed of tomato expansion.
Someone should ask, the water and fertilizer, environment, and temperature of tomatoes are all taken care of, and you can't grow up if you don't want to. There is a certain misunderstanding of such an understanding. It's like a tree, you don't manage it, it's just a tree, it's not a talent. For our tomato planting, fertilization, light, water and fertilizer are just the most basic conditions for its growth. If you want to bear more fruit, you need to manage the plant a little, otherwise the tree will grow crazy. Next, let's talk about 2 important operations.
Management of branches and leaves
In the words of an old vegetable farmer, thinning or picking leaves. The reason is that the leaves are too dense, which will cause the waste of nutrients and the progress of photosynthesis. Because leaves are an important part of photosynthesis and an important way to produce organic matter. There is also a special need for this leaf picking, too early, too late, and too much picking, which will affect photosynthesis. To put it simply, leaf picking is also a must-do, and it is also a key factor in the expansion of tomatoes.
Tomatoes leave fruit
For the cultivation of Xihong, many people understand that the more fruits grow, the higher the yield. In fact, this is not the case, the value of tomatoes is a combination of quality and yield. You want tomatoes to be puffy and colorful, so that the value will be greater. To put it simply, the more the fruit is kept, the better. Today, let's decompose the relationship between tomato fruit retention and expansion, and the fruit retention on the first ear is very critical, after a lot of dataIt is best to leave no more than 3 fruits on the first panicle, otherwise it will affect the growth of the fruits and plants in the second panicle and above. In addition, it is basically okay to leave 4-5 above the second earOtherwise, too much fruit will be left. This nutrient is insufficient, resulting in poor swelling effect and coloring.
Summary:If you want to solve the problem of swelling rate of tomatoes grown in greenhouses, the most basic growing environment must be solved. No matter how cold it is, how cloudy it is, you have to make up for it. It's not something you can solve by spraying some bulking agent, the basic growth is difficult to guarantee, and it is useless to spray more bulking agent. In addition, it is necessary to solve the problem of photosynthesis efficiency of the plant itself, and the number of leaves is also very important. Finally, if the fruit is left, especially the first ear fruit, the plant grows normally, no more than 3 fruits are left, and the plant growth is relatively weak, the first ear can be directly removed and left from the second ear. These are also my personal opinions, with different suggestions, exchange in the comment area, and make progress together.