Is pollution free choy sum popular in the market? What are the key points of planting?

The soil must be fallow for three years to allow the pesticides, fertilizers and inorganic residues in the soil to be completely degraded, and the certification body monitors the whole process. Vegetables can only be grown if pesticide residues and inorganic substances are not detected in the soil within three years. Within three years, the organic matter in the soil must meet the certification standards to grow green vegetables, soil and fertilizer management is mainly to pay attention to whether the soil residue problems are up to standard, if the soil is not a problem, the fertilizer used is mainly organic fertilizer, supplemented by chemical fertilizer.

<>First of all, the land should be renovated and loosened, sprinkled with the medicine to prevent and control land pests, if it is a small area of their own vegetables to eat, it is recommended to use fermentation to prepare good farm fertilizer, large area planting, the first choice is organic farm fertilizer, if not, detect the lack of urea in the soil or others, what is lacking and what to make up for as much as possible to apply fully decomposed organic matter fertilizer. For example, the straw and green manure of various crops are accumulated and fermented at high temperatures to make farmhouse fertilizer, as well as the manure of animals such as pig manure, chicken manure, and cow manure after decay. Fertilization:

Find out the soil nutrient status and soil type of the park, refer to the law and characteristics of crop fertilizer demand, consider the fertilizer utilization rate, pay attention to the bottom fertilizer, and moderate top dressing; Adjust the dosage and proportion of a large number of elements, especially during the critical period of the growing season;

If the soil meets the specifications, then the fertilizer input at the time of planting is first the national standard for fertilizer, and then fertilized based on the needs of soil testing and crop target yield. The most important thing should be the soil problem, to detect whether the soil is up to standard, since it is a green vegetable, the use of chemical fertilizers and pesticides must be scientific and reasonable. In the process of growth, it should be taken care of scientifically and reasonably.

The early-maturing variety of choy sum was sown in April and August, harvested 35 to 45 days after sowing, and the picking period was May and October; Ripe varieties of cabbage, sown in September and October, harvested 40 to 50 days after sowing, and harvested in October and December; Late-maturing varieties of cabbage, sown in November to the following year in our cabbage is also more popular with many people like to plant, there are several varieties of cabbage, in our place to plant more cabbage heart, there are also called vase vegetables, in our cabbage is generally a vase of cabbage after flowering, planting this.

Very welcome. When planting, we must do a good job in the management of water and fertilizer, and we should also spray some pesticides in time to avoid being harmed by insect pests, and we should also choose some varieties with better quality.

1. Sow seedlings and apply sufficient organic fertilizer. Before sowing, water the ground and sow it. Due to the small size of the seeds of cabbage, it can be mixed with 3 4 times of fine soil or river sand when sowing and mix well.

After sowing, cover a thin layer of fine fluvial soil Second, planting Before planting, 3000 kg of rotten organic fertilizer is applied per mu, and raked flat after deep ploughing Third, field management Top dressing is mainly fast-acting nitrogen fertilizer, and it is applied twice every 5 7 days, and 5 10 kg of urea per mu is applied each time Fourth, pest control Diseases are mainly downy mildew, soft rot and virus diseases. Downy mildew can be controlled with 75% chlorothalonil or Prict spray.

Pollution-free cabbage sum is very popular in the market, the first to ensure sufficient sunlight, the second to ensure sufficient moisture, the third can not be pesticides, the fourth to prevent pests and diseases, the fifth planting spacing can not be too small.

Cabbage-type rape is formed by long-term selection and domestication of Chinese cabbage varieties that are easy to sprout, and its main edible organ is cabbage-type rape. Chinese cabbage can be cultivated and eaten all year round. The texture is tender and delicious.

In recent years, its planting area and scope have been expanding, and it has played a good role in increasing vegetable varieties and adjusting weak surpluses. The precautions for the cultivation of cabbage in all seasons are introduced as follows for the reference of local farmers and friends.

1.Cultivation season and variety selection. Although Caixin is an annual vegetable production, it is necessary to select local varieties and the best sowing date according to the specific situation. At present, there are in the country.

Four. 9. Hybrid, semi-early, 60-day-old Chinese cabbage varieties.

2.Sowing seeds and raising seedlings. Oilseed rape sown in early spring should be sown on land with high organic matter content, sunny, and highly arid, with full sunshine, warm climate, or at the end of a cold spell; Summer and autumn sowing should be covered with shade nets or straw to cool the rainfall and prevent soil compaction.

The seed dosage of 667 m 2 is kg, and the seedlings can emerge 3 days after sowing. After the seedlings are sown, the weak seedlings that are too dense should be removed in time, and then separated by 2-3 times to keep the seedling spacing even. When seedlings have true leaves, they are watered with 15% diluted human manure and then once a week with the aim of keeping the soil moist.

Chinese cabbage can also be sown directly, especially in the hot and dry season.

3.Reasonable dense planting. Combine before planting.

667 square meters, 750-1000 kg of rotting manure. When the seedlings have 4-5 true leaves, they should be planted in time, and the planting density depends on the shape of the variety, the cultivation season and the purpose of cultivation. Generally, the early-maturing varieties cultivated in summer are mainly harvested flowering plants, which have fast growth, short growth period, small plants, suitable for dense planting, and the plant row spacing is 13 cm to 16 cm.

The mid-to-late maturing varieties cultivated in spring and autumn tend to have a long growth period, large plants, suitable climate and large growth, and should not be planted too densely, and the plant spacing should be 16 cm to 20 cm.

4.Fertilizer and water management. After planting, we apply some root fertilizer and then top dressing with manure every 3-4 days.

The aromatic content is gradually increased from 15% to 30%-40%. When planting early-maturing varieties, they should be watered to keep the soil moist. By the time the cabbage is flowered, the plant grows vigorously, the cauliflower grows normally, and there is no need for top dressing.

If the cauliflower grows slowly and the cauliflower picking amount is small, a heavy fertilizer should be applied in time to promote the growth of the cauliflower. After the main cauliflower is harvested, if the side ditch needs to be harvested, it should be topdressed once in time, and 10 kg of urea should be applied at 667 m2 in general.

5.Pest and disease control. The diseases of cabbage heart are mainly viral diseases, especially in summer and autumn; The main pests are aphids, filter moths, and vegetable borers, which should be controlled in time.

6.Harvest. The harvesting standards of Chinese cabbage should be strictly controlled.

Generally, the top of the leaf is flush with the top of the high leaf, and the first opening of the flower buds, which is the so-called flowering time, is the best time to harvest. If you want to continue harvesting the side stems, you can cut off the main flowers on the 2nd-3rd leaf (node) at the base of the plant and cut them 1-2 nodes lower for a single harvest.

The profit of Four Seasons cabbage sum in the market is still very high, because many people like this kind of vegetable very much, ** is still relatively high, and it is also very convenient when planting, as long as you pay attention to fertilization and watering.

The profit of this dish is not very high, because the popularity is not high, no one buys it, so there are not many people who grow it. When planting, it should be noted that it uses a lot of water, and it is a plant that prefers a shady and cold environment.

Its value is still very high. Pay attention to its heavy soil, but also pay attention to its spacing distance, whether its roots and seedlings are robust.

It can be cultivated separately throughout the year. When the leaves, be sure to thin the seedlings as soon as possible, and for some dense weak seedlings must be carefully removed. When planting, the land must be sorted out in time

Be sure to pay attention to timely water replenishment to ensure that the soil is moist. It grows especially vigorously during the formation of the cabbage, so be sure to reduce the number of fertilizers. In the market, cabbage has been sold for 7 yuan a catty, and some vegetable farmers have earned more than 10,000 yuan in net profits from planting one acre of land.

The cultivation method of calculating the large demand and high yield is to apply plantar fertilizer, after the true leaves, appropriate seedling, and a small amount of human manure and urine should be applied when thinning the seedlings. Timely planting, when the plant buds, apply 1 time of fast-acting nitrogen fertilizer.

The demand is relatively large, and high-yield cultivation needs to choose high-yielding varieties, fertile land, suitable climate, and provide it with sufficient water and fertilizer during the cultivation period, so as to make the cabbage sum high-yielding.

The demand for choy sum in the market is quite high, and choy sum is an ordinary vegetable, which is acceptable to every household. If you want to have a high yield of cabbage, you can't lack fertilizer in the cultivation process of cabbage, you must ensure that cabbage has enough nutrients, and the spacing between the rows of cabbage can not be too close.

Stir-fried choy sum is a very delicious and simple home-cooked dish, so the market demand is very high. High-yield cultivation is mainly due to water and abundant sunlight. In this way, the choy sum will grow tender and fast.

Hello everyone, today we are going to exchange, gastronomy wants to have high production, ***, more benefits, how to fertilize?Gastronomy is also known as vegetables, cruciferous milk, one, two years herbs. It is a fast-growing vegetable with a short growth cycle, large roots, weak growth capacity, and absorption requirements.

It is relatively harsh. Therefore, it is necessary to strengthen the management of fertilizer water. High Quality and High Yield Culinary Training Tips:

Master's 2 points, gastronomy and high production.

One. Alkaline fertilizers.

In the summer, in the autumn vegetables are grown, the first warm, the more rain, based on alkaline fats. Under normal conditions, 2500 kg of high-quality agricultural fertilizers per mu (sheep, chicken manure is preferred, on the one hand, easy to find in the countryside, on the other hand, high nutritional value, soil absorption).

Two, it's the top.

The main purpose of top dressing is to supplement the shortcomings of alkaline fertilizers and meet the nutritional needs of plants. It is necessary to adhere to early-growing, chirin, massive, fast-acting nitrogen fertilizers, and at the same time add potassium, phosphate fertilizers, to increase the yield and quality of gastronomy.

1.Seedling stage. When the first true seedlings are deployed with real leaves, the amount of urea is 3,000 to 4000 grams per acre.

When the seedlings pass, the seedlings have three trilobes, and then top dressing, the amount can be the same as the first time. After that, in a week, fertilizer, 7000 to 10,000 grams of urea, 10,000 to 20,000 grams of compound fertilizer, mixed.

2.When the plate is formed.

When the plant has flower buds, it should be topped and a lot (9,000 to 13,000 grams of urea, 12,000 grams of compound fertilizer per mu, mixed administration), preferably at the same time, when the weather is weak, the chase is completely chasing it.

3.Harvest after cooking.

A week before harvest, chloride (or sodium molybdate) can reduce the nitrate content in the heart, which improves the quality of the cuisine. When most of the main harvest is made, it is necessary to apply fertilizer, the amount is slightly greater than the previous two times (9000 to 15000 grams of urea, 14000 grams of compound fertilizer per mu, mixed administration), mainly to promote side development, growth.

Regularly weed, spray pesticides, fertilize and water the cabbage, and uproot the cabbage if you see it eaten by insects, so as not to eat other vegetables by insects.

If you want to have a high yield of cabbage, you can work selecting seedlings, removing insects, and fertilizing, so that you can make the cabbage sum have a high yield, and the cabbage sum belongs to a new variety of early-maturing vegetables that matures quickly.