Why did the tomato yield decrease after the boom? What are the common problems that farmers should p

The vigorous growth of tomato is not an increase in yield, but leads to a smaller spacing between ears and fruits, and a shortening of the growth space, which can easily lead to the phenomenon of not being able to sit still. Farmers often need to find out the reason for the vigorous growth of tomatoes in time, and use growth control agents to restrict the growth rate of tomatoes if necessary.

If the tomato seedlings grow too vigorously, it will cause a decrease in the fruit, so we must control the prosperity when planting tomatoes, and farmers must observe whether the tomato seedlings are too vigorous, and if they are too vigorous, they must control the seedlings.

This is because the water is well watered at the time and amount, the reason why planting is not good is because the dosage is not well grasped, as long as the dosage is suitable for good use, the yield can be expanded. Pay attention to the follow-up to increase the liquid temperature appropriately, by strengthening the heat preservation work, reasonable sprinkling, which is conducive to the growth of the whole tomato.

High concentration of pesticidesWhen the concentration of pesticides is too high, it will also affect the yield of tomatoes. While increasing the frequency of spraying pesticides, the amount of chemical control agents can be appropriately reduced. Avoid the death of plants due to excessive spraying of anti-growth pesticides.

The time of spraying the tomato control the vigor is also very critical, some farmers in the flowering period, see that the tomato has a vigorous growth, spray the blooming agent, and some farmers in the tomato seedling after the control of the vigor. According to our planting experience in the past few years, the effect of controlling the growth after slowing the seedlings is better. Many farmers spray the anti-growth agent because they are worried that the over-control will not grow.

Tomato seedlings are controlled at the seedling stage, try to use safe regulators, such as 30 ml of love, etc., (if you use 3 ml mixed with 15 kg of water) foliar spray, it may be lengthened. Generally speaking, if the seedling plant height is reasonable, the stalk is strong and not hollow, the leaves are thick and small, and the leaf color is relatively dark green, such seedlings generally belong to the normal growth of seedlings, not only do not need to control the seedlings, but also often have good flower bud differentiation in the later stage, high fruit setting rate, large fruit size and good quality, and it is easier to get high yield.

Tomato in summer and autumn production and seedling, because the temperature is higher at this time, the temperature difference between day and night is small, it is easy to promote tomato seedlings to appear weak and long, through water and fertilizer adjustment often can not play the role of controlling the seedling growth, the boundary can be the growth of stronger varieties to give priority to the dwarf effect of the chemical control. Microbial inoculants and seaweed essence can be flushed, which can regulate the overall growth of crops, and foliar sprays of potassium dihydrogen phosphate or foliar sprays of seaweed essence can also play a role in controlling growth.

The night temperature can be lowered, is the pesticide has ***, especially multi-effect, a lot of novices can not grasp the dosage, it is easy to cause pesticide damage, to farmers irreparable economic losses, now the market also has a lot of safety control of the drug, if the tomato seedling growth is too prosperous, depending on the growth of the appropriate use of Zhuang spray, if the greenhouse planted tomatoes, at the same time of drug adjustment, appropriately increase the amount of ventilation, and pay attention to the temperature situation, can not be too early in the evening to cover the curtain, Adjust its length according to the specific situation.

If you encounter a long tomato seedling period, you can spray chlormequat potassium dihydrogen phosphate on the foliar surface to control the growth of the plant, coordinate the nutrition**, and pay attention not to overdose. With pesticides that control the overgrowth of tomato seedlings, paclobutrazol may be. The leaves are thick, small, and the leaves are dark green, so this kind of seedlings generally belong to the seedlings with normal growth momentum, not only do not need to adjust the seedlings, but also often have flower bud differentiation in the later stage, high threshing rate, large fruits, and the yield is easier to obtain.

Generally, it is carried out during the period of planting about one month or so, and after the use of growth control agent, it is not easy to appear premature aging in the later stage of tomato. Before flowering, the growth of the growth appeared, and the page was sprayed with 750-1000 times 15% paclobutrazol to control the growth. After flowering and fruiting, nitrogen fertilizer should be controlled, phosphorus and potassium fertilizer should be added, and potassium dihydrogen phosphate should be sprayed to control the growth.

After tomato fruit set, the vegetative growth at this stage is often greater than the reproductive growth, and the root system is already strong. Therefore, during this period, that is, when the tomato is planted for a month, it is most likely that the tomato will grow vigorously. During this period, it is recommended to spray a wangwang control agent, generally paclobutrazol or uniconazole, to control wangchang.

The best time is when the tomato flowers have fallen to 80%, you can artificially sharpen them, pinch off the top of the neck 2 3 cm.

Hello, the method of controlling prosperity is as follows:

1. Moisture. There should be a strict water for tomatoes, which are still developing at this time in the seedling stage, and the absorption capacity of water and fertilizer is not strong, so we can not add too much water to it at this time, as long as the soil is kept at a suitable humidity.

2. Fertilizer. Tomatoes eat too much nitrogen fertilizer or use some inferior fertilizer at the seedling stage, and there may be a situation where excessive nutrients and flourish, if we apply more base fertilizer before tomato planting, in fact, these can already meet the nutrients needed by tomato seedlings, so there is no need to fertilize.

If the amount of fertilizer is too large at this time, too much nitrogen is added to the tomatoes during the fruit-setting period, and other elements are not supplemented enough, and the tomato stalks will be greedy for green and vigorous.

1. The seedling stage should be watered thoroughly to promote the root system as soon as possible, so as to shorten the seedling stage, improve the self-nutrition ability of crops, and the seedlings should be stocky, robust and have strong immunity. Until the first ear of fruit grows to the size of a walnut, the squatting is over.

2. When "crazy growth" is found, immediately carry out shallow hoeing to disperse moisture, and cut off the root to control the prosperity. Pay attention to the cultivator should not be too deep, in case too many roots are truncated, affecting normal growth. After shallow hoeing and dispersing moisture, it can bloom normally in 15-20 days.

3. Apply organic fertilizer, and apply nitrogen, phosphorus, potassium and calcium fertilizer in a balanced manner during land preparation. You can choose Haihai and Weihai balanced fertilizer to improve quality and resist premature aging.

Water control: Tomatoes are relatively weak and their roots are not developed at the seedling stage, so their absorption capacity for water and fertilizer is not strong, as long as the appropriate amount of watering can promote their normal growth. Fertilizer control:

In the early stage, the amount of nitrogen fertilizer should be controlled, and the use of inferior fertilizer should be avoided, so as to avoid the plant growing vigorously and proliferating due to excess nutrients. Temperature control: The temperature should be controlled at 28-30 °C at the seedling stage, and at 22-25 °C after entering the flower bud differentiation stage, and the temperature should be kept warm in time when the temperature is too low.

Use potassium dihydrogen phosphate with chlormequat spray to properly control water and fertilizer, especially nitrogen fertilizer should be applied less.

Tomato cultivation generally does not lack nutrients such as nitrogen, phosphorus, and potassium, but may lack trace elements. We all know that the more elements there are, the easier it is for tomatoes to produce vigorous growth. So, after the tomato is flourishing, how should you control the royal city, or is it best to control the royal city during that period?

According to our many years of experience in tomato planting, usually after the tomato eats the main meal, the sapling begins to be delayed, and the delay time for the sapling is long and short, according to the planting pattern, it is generally 5-7 days. Tell if the slow stunt is over. This is because, generally from the point of view of growth, whether the new leaves begin to grow normally, if they turn yellow and yellow, after the destruction of the root vegetation below, the growth is not fruitful, and the ** of water and nutrients cannot be realized.

If the new leaves begin to grow, it proves that the panacea has ended and officially entered the official growth of the tomato.

After tomato planting, the first spike inflorescence usually begins to grow around 15 days old. We pollinate at this point and let the tomatoes start to bear left. After the tomato bears fruit, often the vegetative growth of this period is greater than the reproduction, and the roots are already fruitful.

So during this period, which is when the tomato grows from one month to the end of the month, the tomato grows very well.

This control of the kingship knows that this is the stage of forcibly transferring the crop from vegetative growth to reproductive growth, and is therefore conducive to the expansion of the first panicle of the tomato, another feature of the control kingship is that it can promote control. Promoting is to promote the growth of new roots. This is the advantage of controlling the monarchy.

What happens if the emperor is taken control too early? Nutrient growth is insufficient at this early stage, and the moisture of one panicle of the tomato is inhibited, including fruit swelling. If it is controlled too late, we will not be able to get more nutrients in one ear, so there will be problems such as slow fruit expansion and small fruit.

Therefore, the king of control must seize the moment.

The general advice is to control the exuberance for a month or so of formal eating. After using the control king system, you will find that tomatoes are less prone to premature aging symptoms in the later stages. One reason is one.

Because the initial nutrient distribution is reasonable, there is both reproductive growth and nutritional growth. Because it is more reasonable and the roots are more developed, there are basically no symptoms called Zorro in the later stage. For us growers, tomato control must be timed and dosed well.

This can lead to nutrient deficiencies in tomatoes, resulting in thin growth. This is because it requires the pruning of excess shoots and fruits, but it destroys the rhizomes where nutrients are transported.

Premature control will cause insufficient vegetative growth in the early stage of tomato, inhibit the pollination of tomato spikes, including fruit expansion. If the fruit is fragile in the past, because it does not get more nutrients, it will swell slowly and the fruit will be small. Therefore, we must seize the opportunity.

Controlling the peak too early can easily cause a reduction in tomato yield, which generally occurs during the tomato flowering period, because not only does the tomato bloom in large quantities, but the underground fruit needles are also growing rapidly. At this time, the use of vigor control agents will not only reduce the amount of tomato flowering, but also inhibit the growth of tomatoes, resulting in a decrease in tomato yield.

Crops in the seedling stage (especially plastic greenhouse vegetable seedlings), sufficient moisture, nitrogen fertilizer use, high humidity, high humidity, small temperature difference between day and night, superior growth environment in all aspects, improper management, easy to occur Wangzhuang phenomenon. For tomatoes, seedlings are an important period for the development of plant roots, stems, branches and leaves. At this time, if the Wangzhuang phenomenon occurs due to improper management, it may lead to some kind of imbalance in nutritional growth and reproductive growth.

Not only is it easy to grow into slender buds, but after the seedlings are transplanted to stabilize the seedlings, the stems of the plant become thinner, and the leaves become thinner or yellow, which is very bad for the flowering of tomatoes. How can this tomato growth momentum achieve higher yields and better quality, not to mention the profitability of vegetable farmers!

This question cannot be decided in one sentence, but by soil moisture and seedling potential. For seedlings with normal growth momentum, the seedlings can not be controlled or the seedlings can be properly controlled, but measures should be taken for the plots with sufficient fertilizer, vigorous growth or apostle sauce phenomenon to not affect the normal growth and normal flowering of tomatoes in the later stage. If the seedlings are very reasonable, the stems are firm, not hollow, the leaves are thick, small, and the leaves are dark green, then this kind of seedlings generally belong to the seedlings with normal growth momentum, not only do not need to adjust the seedlings, but also often have flower bud differentiation in the later stage, high threshing rate, large fruits, and the yield is easier to obtain.

If the tomato seedlings are not vigorous and the plant is tall, the leaves are thin, the cotyledons and petioles are thin, the leaves are shallow, the stems are thick and hollow, the stem length is too long, the taproot of the root is poorly developed, or the number of lateral fibrous roots is small, or the large and small inverted triangle of the whole plant or the flower buds are late in differentiation and the number is small, then the fruit sits on the 1st and 3rd spikes. The vigorous growth of tomato seedlings or the occurrence of apprenticeship phenomenon will lead to a serious imbalance in plant vegetative growth and reproductive growth, and the prevention method should be based on the word "control". Tomato seedlings are weak plants, have underdeveloped roots, and do not have a strong ability to absorb water and fertilizers, so they usually do not need to be watered much.

As long as the soil is not too dry, no watering or a little watering can promote better root development of tomato plants.

Tomatoes start from transplanting the main meal, sitting in front of Xuan Lei or when the first spike flower and fruit are given, as long as you give "three waters", but you can't give too much water, you can't fill it with water. The first is to pour drinking water well, the second is slow sapling water, and the third is to pour water well, plus the county thunder, there is no need to water it anymore. After the tomato seedlings are raised, the water should be adjusted immediately until the new leaves change from bright green to dark green, and the water regulation can be ended in the early morning when the tomato plant leaves do not have condensed water droplets.

Please note that if the seedlings wilt at noon during the process of adjusting the water, you can pour some small water to relieve the seedlings and then continue to adjust the water.

It is easy to grow vigorously at the seedling stage, when the water and fertilizer absorption capacity is not strong, and it usually does not need to be watered too much. As long as the soil is not too dry, do not water or water it a little.

Some tomatoes have entered the early flowering period, the early flowering period is the time period when the tomato enters a whole to "control", in the early flowering period inflorescence differentiation, growth, and pollination all need water, at this time, it is difficult to form the first ear of fruit due to lack of water The temperature is 24-26 It is more appropriate, and the normal variety will grow the first spike flower when it has 5-7 leaves, but some varieties are the first spike flower in 11-13 leaves. Varieties like this can be broken early when pruning and shooting; Avoid the use of nitrogen fertilizers, use a small amount of phosphorus and potassium fertilizers, and use phosphorus and potassium fertilizers with boron fertilizers on the foliar surface.