Does cabbage need to be watered directly after fertilization? How to achieve the rational use of wat

Due to the long growth period of cabbage, the demand for water and nutrients is large, and during the growth period of cabbage, it is necessary to keep the ground moist every day, especially during the seedling period. Sometimes it rains a lot, and it needs to be watered even more, because the rain may splash the soil on the cabbage leaves, and the leaves have too much soil on them, which affects the growth of the cabbage, and it needs to be watered to wash the soil away.

After sowing the cabbage, wait until a stage of growth, and watch the cabbage grow four or five leaves, you need to set the seedlings, and after the cabbage seedlings three times, you need to set the seedlings. In order to ensure that the cabbage grows well, the heavy and honest Chinese cabbage can be harvested after autumn, and the seedlings should be fertilized in time. So do you need to water after fertilizing?

When is the watering time to achieve a reasonable combination of water and fertilizer?

If you are a professional vegetable farmer, you can take advantage of the watering or rain, when the vegetable field is still wet, directly sprinkle the fertilizer in the vegetable furrow, although it is a bit wasteful, but this saves time and effort, but it should be noted that the fertilizer can not be sprinkled on the leaves. Rural people grow vegetables, most of them are vegetable gardens in front of their homes, and in order to eat pure natural and clean vegetables, they naturally do not use chemical fertilizers.

Most of the small vegetable gardens in front of their own doors use organic fertilizer, and those who are particular about it will use soybeans or peanut cakes as fertilizer. After the cabbage seedlings are set, it is necessary to top dressing in time, no matter what fertilizer is used, it is best to water immediately after fertilization. If you really don't have time, watering every day or two is fine, but it's best not to delay too long.

After fertilizing, be sure to water the cabbage thoroughly. Because most people apply human or animal manure fertilizer to cabbage, if the amount is too large and close to the cabbage root, it is easy to injure the cabbage root due to too much nutrients. Some people just didn't water it in time after fertilization, and it didn't rain in the sky, so they burned the vegetable roots.

Therefore, after the cabbage is fertilized, in order to avoid unnecessary trouble, it is necessary to water directly, so as to reduce the concentration of chemical fertilizer, improve the effectiveness of chemical fertilizer, and achieve the rational use of water and fertilizer, in order to improve the quality and yield of cabbage.

Cabbage needs to be watered directly after fertilization. The best thing is to water every day, be sure to fertilize scientifically, and control the frequency of fertilization.

Cabbage needs to be watered after fertilization, because the concentration of fertilizer is too high, the fertility is too large, and if it is not diluted by watering, it is very easy to burn seedlings.

Yes, it is best to fertilize just after the rain, which can save a lot of effort, can also effectively improve the efficiency, and can also make the fertilizer sprayed very evenly.

It should be fertilized in moderation, not too much at one time, otherwise it will damage its growth.

Nitrogen fertilizer should be applied in moderation. Basal fertilizer is the main fertilizer, and basal fertilizer is combined with top dressing. Top dressing is mainly nitrogen, nitrogen, phosphorus and potassium are reasonably matched, and trace elements are appropriately supplemented.

It is planned to produce about 4,000 kg of fresh cabbage per mu, 2,000 kg of organic fertilizer, 15-20 kg of pure nitrogen, and 4-6 kg of phosphorus (P2O5).

Before planting cabbage, you should apply a little organic fertilizer to him as a base fertilizer, with fertilizer, divided into elemental fertilizer and compound fertilizer, and apply some compound fertilizer superphosphate potassium chloride to it later.

apply sufficient basal fertilizer; Apply good seedling fertilizer;

Grow a fertilizer; Repeat fertilization.

According to the various growth stages of Chinese cabbage to determine the balance of fertilization, general crops in the vegetative growth stage, top dressing to nitrogen fertilizer, phosphorus, potassium fertilizer as a supplement, in the reproductive growth stage, to phosphorus, potassium fertilizer, nitrogen fertilizer as a supplement, according to the above fertilizer law, for the medium yield of cabbage field, the base fertilizer application can be arranged in this way, heavy application of organic fertilizer to provide long-term nutrients, per mu can be applied to fully decay farmhouse fertilizer about 3 tons, with urea 5 kg, ammonium sulfate 5 kg, superphosphate 30 kg, potassium sulfate 7 kg.

Carry out the first thinning, and then carry out the second thinning after 5 to 7 days, this time leaving the strong seedlings and removing the weak seedlings. Note that the seedling spacing is kept at about 6 cm. Light manure should be applied once after each seedling thinning, which can promote the seedlings to grow stronger.

To reapply top dressing once, mix 10-15 kg of urea, 10 kg of superphosphate and 10 kg of potassium sulfate per mu, and apply it with water to promote the vigorous growth of rosette leaves. In case of rain, dry fertiliser can be applied, but it must be kept away from the roots and covered with soil immediately.

5-7 days after sowing seedlings, in the interval of a week after the second seedling, seedlings in addition to watering, a manure watering, manure concentration is too high to be diluted, can be flushed with water. After the Chinese cabbage seedlings turn green and straighten up, they can chase the first fertilizer. In rural areas, the first fertilizer is watered with manure, manure is a good farm fertilizer, long-lasting fertility, relatively mild, will not burn seedlings and roots, so it is very suitable for seedling fertilizer use, promote Chinese cabbage seedlings to restore rooting and growth.

Chinese cabbage is suitable for cultivation in loose, fertile, water-retaining and fertile loam or sandy loam soil. Before sowing, turn over the soil 20 25 cm, dry it, and apply fully decomposed manure, generally 3000 4000 kg per mu.

Twenty kilograms of ammonium sulfate need to be applied to one acre of land, and at the rosette stage, thirty kilograms of ammonium sulfate and fifteen kilograms of superphosphate can be added, mixed on both sides, and then watered. Fifteen to twenty kilograms of ammonium sulfate are also added during the bulbosetting stage.

The most important thing to do when fertilizing the cabbage is to irrigate a large area first, and then fertilize, which can also ensure that the cabbage is absorbed by the soil faster, and the cabbage can also grow very well.

Nitrogen and potassium fertilizers should be added to the cabbage, which is more effective, and sprayed with some water at the same time, which can be absorbed faster.

Fertilization should be applied to the roots. In this way, the roots of the bok choy can absorb some nutrients.

At this time, you should grasp the time, for example, when the cabbage is strong and vigorous, or when the cabbage has pests or pests, and when the soil has no fertility, we must pay attention to the reasonable amount, and then we also need to avoid rainy weather, and when the temperature is relatively high.

Choose fertilization in May, when fertilizing should pay attention to the choice of soap, it is best to choose some potassium fertilizer, so that the roots can be supplemented with a lot of nutrients, and when fertilizing, you must ensure that you do not hurt the roots, so that all can be contacted.

Fertilization can be carried out at the seedling stage. When fertilizing, we must pay attention to the amount of fertilizer, and we need to pay attention to the ratio of fertilizer, you can mix some fertilizers together, but do not have chemical reactions, we must understand these fertilizers, and we must avoid windy and rainy weather when fertilizing.

Cabbage is one of the main vegetables grown in autumn in China. We all know that crops and flowers rely on fertilizer. The high quality and high yield of cabbage are inseparable from fertilizer. So what fertilizer should be applied to the cabbage that you want to grow better? What fertilizer can't be used for cabbage?

What fertilizer should be used to grow cabbage.

1. Farm fertilizer.

Farmhouse fertilizer is also called organic fertilizer, and cabbage fertilizer is generally composed of completely rotten farmhouse fertilizer and a small amount of chemical fertilizer. But before preparing the land, sprinkle farmhouse manure first, and then turn it deep to return the farmhouse manure to the bottom of the soil, which is conducive to the absorption of nutrients by cabbage, and the fertilizer is converted into nitric acid, which is conducive to the absorption of cabbage by the soil.

2. Cabbage compound fertilizer.

There is a preference for fertilizers. Among them, the absorption of nitrogen, phosphorus and potassium is relatively large. Fertilizers based on nitrogen, phosphorus and potassium are important guarantees for the good growth and yield of cabbage.

Compound fertilizer can be used as basal fertilizer and organic fertilizer to cultivate together, and can also be used as top dressing. The base fertilizer is generally 15 kg of potassium sulfate, 25 kg of diammonium phosphate or 15:15:

15. 50 kg of ternary compound fertilizer. Top dressing compound fertilizer should be selected according to the type of fertilizer and the amount of fertilizer should be determined according to the production period of cabbage. Cabbage rosette stage, ammonium sulfate 50 kg or urea 20 kg, potassium sulfate 15 kg, 15 kg.

Kilograms of superphosphate can be coated. After the cabbage station, about 10 kg of urea, 15 kg of superphosphate, and about 15 kg of potassium chloride were added.

3. Foliar fertilizer.

Foliar fertilizer is an important fertilizer to ensure the rapid supply of nutrients and avoid nutrient deficiency in the growth process of Chinese cabbage. Spray potassium dihydrogen phosphate at the flowering stage of cabbage, which can be sprayed once every 10 days as needed, and the concentration is, and the dosage is too large and easy to burn seedlings. Chelated calcium is mainly used to supplement calcium fertilizer to prevent or reduce the occurrence of "dry heartburn" in cabbage.

It is recommended to spray a solution of calcium chloride or calcium nitrate on the leaves of Chinese cabbage 2-3 times. Spraying 5 times every 7 days during the growing season can effectively prevent heartburn in Chinese cabbage.

What fertilizer can't you use for cabbage?

1.Chlorine-containing fertilizers.

Chlorine-containing fertilizers include: ammonium chloride, potassium chloride, calcium chloride, etc., and chlorine-containing fertilizers can only be used in small amounts. Otherwise, it will lead to heavy soil salinity, cause damage to vegetables, and affect the normal growth of vegetables, especially cabbage, try not to use chlorine-containing fertilizers.

2. Urea and ammonium bicarbonate.

Although urea and ammonium bicarbonate can improve the yield of cabbage, it is necessary to control the dosage and do not eat excessively, especially in the late growth stage, excessive nitrogen fertilizer will not only make the cabbage packaging poor, but also the cabbage leaves have high moisture, affecting the taste, and it is also easy to rot during storage. In addition, pests are also prone to occur in the later stages of growth. Top dressing cabbage should not be excessive, should be covered with phosphorus and potassium fertilizer.

3. Insufficient fermentation of farmhouse fertilizer.

If you use poorly fermented farm fertilizer, it is easy to cause pests and diseases, resulting in underground pests, rotten roots, soft rot, etc., so farm fertilizer must be fermented well, otherwise it will not increase the yield, and will also lead to the emergence of various pests and diseases.

The above is the introduction of cabbage fertilization. Cabbage is grown on the basis of fertilization on the feet. A good surface layer can guarantee high efficiency. Therefore, it is necessary to do a good job in fertilization management. Do you have anything to add to your cabbage fertilization?

You can apply basal fertilizer, manure, compost, mixed manure and other organic fertilizers, so that cabbage can grow better. Nitric acid nitrogen, ammonia nitrogen and other fertilizers can not be used for cabbage.

It should be applied farmhouse fertilizer, which may make the cabbage grow better, and you can also apply cabbage compound fertilizer, which can also improve the yield of cabbage. Fertilizers that are not suitable for use should be chlorine-containing fertilizers, urea, ammonium bicarbonate, etc., which are not suitable for use.

There are several kinds of nitrogen fertilizers on the market, such as ammonium nitrogen and nitrate nitrogen fertilizers, among which the common ones are ammonium chloride, ammonium sulfate and ammonium bicarbonate, ammonium nitrate, calcium nitrate, and should be used with caution on cabbage.

Farmhouse fertilizer is used as base fertilizer, and urea is used as top dressing. You can also use compound fertilizer, use 15-15-15 compound fertilizer as base fertilizer, top dressing with high nitrogen type, such as 30-5-5 or 28-6-9, etc., at this time urea top dressing can also be used. Do not use chlorine-containing fertilizers, such as topdressing chlorine-containing fertilizers.

The use of Chinese cabbage foliar fertilizer is generally carried out during the rosette period, spraying once every 7 10 days, a total of 3 4 times. In order to improve the effect when spraying, a small amount of laundry detergent can be added to the fertilizer.

Make adhesives. In addition, it is best to choose a sunny day without wind, after 4 p.m. Foliar fertilizers commonly used are: urea.

100 times liquid, Bika potassium dihydrogen phosphate.

100 times liquid, boron fertilizer + urea, etc. Foliar fertilization can also be mixed with pesticides, such as 200 times of urea and 700 times of ammonium desen, which can improve the control effect of downy mildew.

Foliar fertilization of Chinese cabbage is mostly sprayed on the leaf surface of Chinese cabbage with a sprayer. Commonly used fertilizers are; Potassium dihydrogen phosphate, urea, etc.

Spray sugar alcohol calcium + potassium dihydrogen phosphate solution regularly.

The biggest reason why Chinese cabbage is dry heartburn, the biggest reason is calcium deficiency, if we often use chemical fertilizers, it is more likely to have calcium deficiency, so as to dry heartburn, therefore, before we plant Chinese cabbage, we need to apply enough farm fertilizer to the vegetable field, add various nutrients to the soil, and the follow-up Chinese cabbage is not easy to lack calcium dry heartburn.

First, when fertilizing cabbage, the use of nitrogen fertilizer can increase the weight of leaf bulbs, but when nitrogen fertilizer is excessive, it affects the absorption of other elements, and the quality and disease resistance will also be reduced. Small black spots on the leaves are also a sign of excess nitrogen fertilizer.

Second, cabbage needs the most potassium fertilizer at the bulboding stage, followed by nitrogen as the second, calcium as the third, and phosphorus as the fourth. Supplemental potassium fertilizer is also a trick to increase the yield of cabbage. When potassium is deficient, the nutrients in the outer leaf cannot be transported to the heart leaf, and the inner leaf of the leaf bulb becomes smaller, and the core is not full, and the yield is seriously reduced.

When potassium is deficient, the ability of cabbage to resist soft rot and downy mildew decreases.

Therefore, reasonable fertilization has a great impact on the yield and quality of cabbage. If there is an increase in diseases and loose leaf bulbs, farmers should pay attention to the balanced application of nitrogen and potassium, not bias the application of one element, change the fertilization formula, promote the growth of leaf bulbs, and improve the quality.

In the crusting stage of cabbage, the nutrients absorbed are the most. When topdressing, the amount of potassium fertilizer should be increased. 30 kg of urea per mu, plus 20 kg of potassium sulfate, or 3 balanced compound fertilizers of 15, 30 kg per mu.

The focus of top dressing is in the early stage of cabbage balling to promote the growth of leaf balls, and the top dressing should be early in the balling stage. In the late stage of balling, the effect of increasing production cannot be achieved.