How to raise vegetable seedlings? How to raise vegetable seedlings well

In autumn, greenhouse vegetables begin to be planted, after experiencing the "rest" of the summer interval, many farmers tend to relax the management of greenhouse vegetables in early autumn, which often leads to the phenomenon of seedling wilting when planting autumn vegetables. At the same time, affected by the high temperature in summer, the temperature in the greenhouse is still high, and the vegetables need water, so they should provide water for the growth of vegetables in combination with the actual situation. In general, the autumn management of greenhouse vegetables is very important and has a fundamental effect on the entire growth period, so strengthening the autumn management of greenhouse vegetables cannot be ignored.

1. Fixation between seedlings.

The temperature in early autumn is high, if the seedlings are crowded, it is easy to grow, so it is necessary to raise seedlings in a timely manner, when raising seedlings, according to the vegetables raised, each bowl selects one or two healthy seedling nutrition areas, and the nutrition bowl is generally selected 10 cm -15 cm.

2. Shade in strong light.

Prefer shady, low-light seedlings, and use gauze and straw curtains to shade appropriately when exposed to strong light, but gradually reduce shade materials in the later stage of growth. Increase the light.

3. Cover with film to prevent heavy rain.

Before the rainstorm comes, cover it with plastic film, cover it tightly and densely, and remove it in time after the rainstorm.

4. Control water and fertilizer.

In early autumn, when temperatures are high, water and fertilizer should not be excessive, but in moderation. Drain the seedbed in time after heavy rain to prevent water accumulation.

5. Proper control.

Due to the high temperature in early autumn, which is not conducive to the differentiation of fruit and vegetable flower buds, it can be regulated with chemicals at the appropriate time to promote the flower bud differentiation and the reasonable transformation of fruit nutrition.

6. Disease prevention and pest control.

Aphids in early autumn are seriously harmful, and if they are not prevented and controlled in time, they are easy to cause viral diseases, so they should be given enough attention. For aphid control, the main thing is to avoid aphids by covering the sieve net. If aphids are present, insecticides can be used to control them.

When spraying, care should be taken to aim the nozzle at the back of the leaf and spray as many aphids as possible. In early autumn, seedlings are prone to cataplexy, blight, virus disease and other diseases, which should be sprayed in time for prevention.

We must control the temperature, we must pay attention to the quality of agricultural products, strengthen the management of water and fertilizer when planting, do a good job of ventilation, prevent pests and diseases, and prune branches and leaves regularly.

In the process of raising seedlings of greenhouse vegetables, if the environmental conditions cannot keep up or the management is improper, the seedlings often have various abnormal growth phenomena, so it is necessary to manage them scientifically according to different situations.

1.The fixed temperature between the seedlings is high in early autumn, if the seedlings are crowded, it is easy to grow, so it is necessary to raise seedlings in a timely manner, when raising seedlings, according to the vegetables raised, each bowl selects one or two healthy seedling nutrition areas, and the nutrition bowl is generally selected 10 cm -15 cm.

2.Shading in strong light Prefer shady, low-light seedlings, and appropriately shade with gauze and straw curtains when exposed to strong light, but gradually reduce shade materials in the later stage of growth. Increase the light.

3.Cover with film to protect against heavy rain Before a rainstorm comes, cover it with plastic film and cover it tightly.

Cover the greenhouse, and then plant some vegetables in the greenhouse, pay attention to the vegetable planting method, soil, and remember to water and fertilize when planting.

There are the following methods for cultivating vegetable seedlings: 1Choose the right seed:

Choose seeds that are suitable for the local climate and soil conditions, ensuring the quality and freshness of the seeds. 2.Preparation of seedling soil:

Seedling soil should be loose, breathable, well-drained, and can be purchased at a gardening store or made by yourself. 3.Sowing:

Spread the seeds evenly on the surface of the seedling soil and then gently compact, not covering too much soil. 4.Watering:

Use a watering can or watering can to water lightly, keeping the soil moist but not too moist. 5.Lighting:

Place the tray in a well-lit place, but do not expose it directly to sunlight. 6.Temperature:

Maintain a suitable temperature, generally between 20-25. 7.Management:

Regularly check soil moisture and plant growth, and replenish water and fertilizer in a timely manner. 8.Transplanting:

When the seedlings have grown to a certain height, they can be transplanted into larger containers or directly into the garden. 9.Pest Prevention:

Pay attention to prevent the occurrence of insect shed damage and diseases, and take timely measures to prevent and control them.

1. Reasonable control of temperature and humidity.

Some time ago, many farmers who raised seedlings encountered low temperatures, even cloudy weather, not only to control the temperature and light, but also to pay attention to humidity, cloudy days can not be watered too often. Now after the winter solstice, the sunshine hours have increased, and the sunny days are enough, and the fill light only needs to be used on cloudy days. When the temperature is low, many farmers use the land to increase the temperature, but there is a situation of burning roots, which is often caused by high ground temperature.

The ground only needs to be opened during the low temperature period, and it does not need to be left open all day, and it is not good if the temperature is too high. Enhance the growth of seedlings.

When the seedlings grow well, they have a certain degree of resistance, and have the ability to resist cold, diseases and pests, which has a lot to do with top dressing. Seedling topdressing we often use some balanced compound fertilizers, such as 3 15, 3 17 and other water-soluble fertilizers. In addition to a large amount of nitrogen, phosphorus and potassium, a certain amount of medium and trace elements such as calcium, boron and magnesium are also required.

Top dressing adopts the method of spraying, a bucket of water is 30 catties, a large number of elements with 10 grams, medium and trace elements with 1 to 2 grams, spraying, under normal circumstances, every three or five days on a top dressing. Although the amount of medium and trace elements is small, it can promote the growth of seedlings. Disease prevention during the seedling period.

Withering and cataplexy are common diseases in the seedling stage, and the two diseases often occur together. Standing blight is when the seedlings only die and do not lodging, while cataplexy will die in patches. Disease prevention is important during the nursery stage, and prophylaxis can be applied with fludioxonil and methamethoxine, focusing on the base of the stem.