How to grow tomatoes, how to fertilize the most scientific?

Tomatoes, a brightly colored food, in our lives, it can be used as a vegetable, can also be eaten directly as a fruit, it needs us to apply a lot of fertilizer in the process of growth, especially when topdressing, there are many details to pay attention to, the following will be explained to you specifically.

One control: the period from tomato planting to fruit set, should look at the seedling top dressing and control the amount of top dressing. If the top dressing is too much and too concentrated, it is easy to cause the plant to grow, and even cause flower and fruit drop.

Therefore, in addition to the serious lack of fertilizer in the plant during this period, the amount of top dressing should generally be controlled, and a little dilute manure water or biochemical organic fertilizer solution can be applied.

2. Promotion: Tomatoes should be fertilized frequently at the young fruit stage and harvest period to promote their growth and development. When the first ear of fruit grows to the size of walnut, it is necessary to quickly apply fast-acting fertilizer 1-2 times, and generally apply a concentration of 30% human manure or 5% sulfur-containing compound fertilizer extract to ensure that the plant is not defertilized.

After the young fruit enters the swelling, in order to meet the needs of plant growth and avoid later defertilization, the fruit should be diligently pursued and the fruit preservation fertilizer should be applied every 10 days on sunny days, and the concentration of 40% human manure or 5% sulfur-containing compound fertilizer extract should be applied every 10 days.

Three sprays: Tomatoes not only absorb nutrients from the soil from the roots, but also absorb mineral nutrients from the leaves to promote the development of fruits and seeds. Therefore, during the fruit growth period, especially when the soil topdressing can not be carried out in the early stage of continuous rain, foliar fertilizer should be sprayed 2-3 times, 300-500 times of organic liquid fertilizer can be sprayed, and 500 times of chelated multi-compound micro-fertilizer can be sprayed to improve the quality of tomatoes.

Four taboos: Tomato topdressing should not be carried out in the case of wet soil and high temperature at noon, and avoid excessive concentrated fertilization. Concentrated fertilization is easy to make plants grow and produce fertilizer damage; Fertilization in the case of wet soil is easy to cause physiological diseases such as flower drop, leaf drop and fruit drop; Fertilization under high temperature conditions will affect the large amount of water evaporation from plant leaves, which will affect the fertilizer efficiency.

In addition, the fertilization time should avoid high temperature periods, and it is advisable to use it in the early morning or late afternoon.

Tomato cultivation should be different fertilizers at different times, and it is necessary to pay attention to the amount of fertilizer. Fertilization should be applied during the seedling period, planting period, and flowering period. The most nutritious is farmhouse fertilizer.

Tomatoes in the planting period to apply foot fertilizer, tomato seedlings before transplanting each mu to apply enough organic fertilizer, pay attention to tomatoes in each stage of growth and development, we do not timely fertilizer at different times, in order to reduce the problem of physiological deficiency of tomatoes caused by unreasonable fertilization.

Fertilization begins one month after planting the tomatoes. It is best to use nitrogen and potassium fertilizers to promote the growth of plant rhizomes, regular watering.

In the process of tomato growth and development, the demand for fertilizer is not very large, but tomatoes need nitrogen fertilizer, phosphate fertilizer and potassium fertilizer, but at the same time, some trace element fertilizers are also needed, including boron, calcium, sulfur needs, so when planting tomatoes, we must pay attention to the uniform fertilization of these trace elements, but the demand for nitrogen fertilizer in tomatoes is still relatively large, so the application of nitrogen fertilizer can be appropriately increased when planting.

It should also be noted that the bottom fertilizer is also more important in the fertilization process of tomatoes. The base fertilizer is generally based on commercial organic fertilizer or farmhouse fertilizer, which can improve the soil and increase the permeability of the soil. According to the different raw materials, the normal dosage of 800 100 catties per mu of land is better.

Most of the farm manure is based on rice husk and chicken manure, and it is normal to use 5 8 square meters of one acre of land.

There are two ways to fertilize tomatoes. The first is to add fertilizer directly to the soil and wait for the soil to digest the fertilizer and deliver it to the roots of the tomatoes; The second is to mix fertilizer and water evenly and water it in the soil, or spray it on the tomato leaves to make the plant grow more vigorously.

When fertilizing tomatoes, you need to pay attention to the amount of fertilizer to avoid fertilizer damage to the plants. If the tomatoes are provided with too many nutrients, they need to be poured into the soil immediately to dilute the fertilizer content in the soil, and at the same time, the tomatoes need to be regularly loosened to drain the excess water from the soil and allow the plants to grow healthily.

1. Bottom fertilizer at the seedling stage: 1000 kg of high-quality farm fertilizer, 10 kg of urea, 10 kg of ammonium phosphate, and 40 to 50 kg of calcium return from perphosphorus chain collapse of perphosphorus chain sour shirt per mu of tomatoes, and at the same time, disinfect the soil with spraying disinfectant and 800 times of new high-lipid film.

2. Foliar fertilizer application at the seedling growth stage: when the tomato seedlings grow to 5 to 6 leaves, foliar fertilizer can be sprayed if the leaf color becomes light. Commonly used fertilizers are 300 times urea solution, 300 times potassium dihydrogen phosphate solution, 500 times Hexin liquid fertilizer, 100% to potassium sulfate compound fertilizer solution, etc., and spray to promote the growth of main shoots and promote flower bud differentiation during the tomato growth period.

3. Top dressing in the fruiting period: 15 to 20 kg of ammonium nitrate and 20 to 3 large superphosphate per mu.

Let's start with phosphorus, because phosphorus is the most critical element. Everyone knows that nitrogen attacks leaves, phosphorus attacks grains and flowers, and potassium is replenished with dry matter. So people don't pay much attention to phosphorus, and often when you choose a fertilizer formula, it's a matter of phosphorus.

Everyone knows that high nitrogen is used in the early stage and high potassium is used in the later stage. In fact, you are not thinking about the proper application of phosphorus. If you want to have a high yield of tomatoes, the fertilization formula should be mastered by yourself, and you can no longer fool farmers After planting tomatoes, it is generally recommended that the amount of phosphorus, nitrogen and potassium should be as high as the first fertilization, which is what we often call balanced fertilization.

Why is the amount of phosphorus used higher at this time? When you first plant tomatoes, you should ensure the normal development and growth of tomato roots.

This phosphorus plays a key role in promoting the growth of root hairs, especially roots. At the same time, the tomato is in the stage of flower bud differentiation and will soon grow one spike flower, followed by two spike flowers and three spike flowers. Therefore, the formation of the phosphorus flowering period is very important at this time.

So, that's why fertilization is the first time. It is recommended that phosphorus be as high as nitrogen and potassium. When we fertilize for the second time, the amount of phosphorus is relatively reduced.

Why is it lowered? Because this root system is well developed, the seedlings have been planted for almost a month. So this phosphorus element has now begun to decrease, the root hairs do not need to consume more phosphorus, and the rest is that the flower buds are differentiated and flowered, which requires phosphorus.

The amount of phosphorus is half that of nitrogen and potassium, which can fully meet the phosphorus demand. When we wait for a tomato, it is like a tomato with six ears. Let's take the lead and don't let it bloom again.

After taking the lead, the amount of phosphorus is reduced by half. That is, it is basically 1 2 of nitrogen and 1 4 of potassium. Potassium and phosphorus are indispensable at this time as they are still evolving and growing, so they should provide nutrients for the growth of the roots.

Basal fertilizer is the foundation. Organic fertilizer should be based on base fertilizer, supplemented by chemical fertilizer. However, after the application of agricultural fertilizer, it should be decomposed by beneficial bacteria in the soil before being absorbed by the roots, and its fertilizer efficiency is slow, which is difficult to meet the nutrient needs of tomato plants in the early stage of growth.

The base fertilizer is generally 4000-4500 kg of rotting farmhouse fertilizer, 10-12 kg of urea, 8-10 kg of ammonium phosphate, and 8-10 kg of superphosphate per mu. When planting tomatoes, how to fertilize them to achieve high yield and high quality? With these fertilization methods, vegetable farmers should know that tomato seedlings should be applied in time to promote seedlings to make the seedlings neat and robust.

Specifically, a shallow ditch is opened 10 cm away from the root system of the seedlings, 10-10 kg of urea is flushed with water per mu, and then the fine soil is backfilled. 10 days after fertilization, combined with slow seedling water, an exciting antibacterial fertilizer was applied to promote root growth and strengthen seedlings. Spraying borax solution 1-2 times in time before tomato flowering, with an interval of 5-7 days each time, is conducive to promoting tomato flowering and fruit setting and improving tomato yield.

When the young tomato fruit grows to 3-4 cm, foliar spraying of 1% superphosphate 2-3 times can help prevent the occurrence of calcium deficiency, inhibit the development of tomato, and avoid the formation of umbilical rot. In the middle and late stages of young fruit expansion, potassium supplementation is required.

In the period when tomato growth is more vigorous, it is necessary to provide nitrogen fertilizer for plants to improve the growth rate of tomato, and in the flowering and fruiting stage of tomato, it is necessary to provide phosphorus and potassium fertilizer for plants to promote flower bud differentiation of tomato.

You can fertilize it when it is first planted, and then you can fertilize it when it is ready to sprout, so that its yield will be very high.

Fertilizer management before tomato planting fruit: this period mainly takes the method of fertilizer control, if it is not a serious lack of fertilizer in the plant, generally no additional fertilizer is carried out in this period, if the additional fertilizer will cause the plant to grow. Fertilizer management before harvesting young fruits:

At this time, it is necessary to refertilize, during this period the plant must not only branch, but also flower and bear fruit, and the young fruit begins to expand, consuming more nutrients.

Generally speaking, it is better to apply potassium dihydrogen phosphate, compound fertilizer and other fertilizers in the early stage of tomato fruiting, which can help the plant not to grow up, and the growth potential of the plant begins to weaken during the peak fruiting period, and urea, sugar, etc. can be used to promote seedlings and protect leaves. Generally, the application of organic fertilizer containing humic acid can help increase the yield of tomatoes, and foliar fertilizer containing humic acid can be sprayed simultaneously.

What fertilizer is good to apply to tomatoes.

Tomatoes prefer fertile soil, and usually, before tomatoes set fruit, the demand for nitrogen fertilizer is high, and after fruit set, the demand for nitrogen fertilizer plummets and the demand for potassium fertilizer soars.

Generally speaking, it is better to apply fertilizers such as potassium dihydrogen phosphate and compound fertilizer in the early stage of tomato fruiting, which can help the plant not to grow up, and the growth potential of the plant begins to weaken during the peak fruiting period.

What fertilizer can be used to increase the yield of tomatoes.

Tomatoes can be increased with organic fertilizer, generally can be applied with organic fertilizer containing humic acid, because humic acid can play a role in improving the soil, improve the quality of crops, in addition to foliar spraying of foliar fertilizer containing humic acid, synchronously.

What fertilizer can tomatoes water to bloom more.

When the weather conditions are good, watering and applying high-potassium compound fertilizer and biological fertilizer with water can help the plants bloom more.

Tomato fertilization time.

Top dressing:Before the tomatoes are planted to the fruit, in addition to the lack of plant fertilizer, a little manure should be applied, and the top dressing should be controlled in general, and fertilization should also be applied after the inflorescence is set and the fruit is set.

When the second and third ears expand rapidly, they must continuously provide nutrients to meet the growth needs, so fertilization is also required.

Foliar fertilizer:During the growth period of tomatoes, especially when continuous rain in the early stage can not add ground fertilizer, the foliar surface should be sprayed 2 3 times, and the boric acid solution should be sprayed once during the flowering period to increase the content of vitamins and soluble solids in tomatoes and improve the quality of tomatoes.

Tomato fertilization method.

1. The fertilization of tomatoes should be based on soil fertility conditions, comprehensively consider environmental nutrients, and appropriately reduce the amount of nitrogen and phosphorus fertilizers.

2. Generally speaking, the temperature is low in early spring and the soil nutrients are slow, so the top dressing of tomatoes in the early stage should keep up.

3. Tomato fertilization recommended fertilization should be closely combined with reasonable irrigation, which is conducive to the growth of tomatoes and the rational use of fertilizer.

Pay attention to the right time and the right amount.

The so-called suitable potato refers to the tomato when it is needed, such as the stool bark eggplant leaf color is light, the plant growth is weak, fertilization is timely. As for when to fertilize, it depends on the different growth and development periods of tomatoes, such as more nitrogen fertilizer can be applied at the seedling stage, rotted human urine manure, soybean cake fertilizer, sesame cake fertilizer, etc., to promote the rapid and robust growth of seedlings.

During the pregnancy bud period, you can apply more phosphorus, potassium fertilizer, chicken, fish offal, bone meal, bran ash, etc., which is the ash formed by burning the rice husk, containing potassium elements, in order to promote the growth of flowers and seeds.

In the early stage of fruit set, the fertilization of the coarse person should be properly controlled to facilitate the fruit set. No matter what period of fertilization should pay attention to the appropriate amount, if too much nitrogen fertilizer, it is easy to form elongation, too much potassium fertilizer, hinder fertility, affect flowering and fruiting.