How should you fertilize bok choy? What fertilizer should I use when topdressing?

The heavy use of chemical fertilizers will not only reduce crop yields and agricultural product quality, but also soil quality. Many studies have shown that the application of organic fertilizer can increase the content of soil organic matter, strengthen soil enzymes, improve soil physical and chemical properties, and improve soil fertility, so it has a wide range of applications in production.

The combination of organic fertilizer and inorganic fertilizer can coordinate and balance nutrients**, promote the absorption of crop root water and nutrients in the late growth stage, so that crops can obtain high yield and high quality, and effectively improve the quality of vegetables. The application of biological fertilizer or microbial agent can improve soil physicochemical properties, balance soil colonies, improve crop resistance, and significantly improve crop yield and quality.

After the mixture of organic fertilizer and biological fertilizer, the soil can be improved, the air permeability and conservatism of the soil can be improved, the absorption capacity of the roots can be improved, the fertilizer utilization rate can be improved, and the amount of chemical fertilizer can be reduced. However, because it contains a large amount of nitrogen, phosphorus and potassium, it cannot meet the nutrient needs of crops throughout the growing period, so fertilizers must be formulated to maximize the role of the three fertilizers. In this study, the changes of growth index, yield, quality and economic benefits of Chinese cabbage under the conditions of biological fertilizer, organic fertilizer and inorganic fertilizer were studied, so as to change the existing short-term organic fertilizer and inorganic fertilizer mode, introduce microbial fertilizer, improve the utilization rate of organic fertilizer and inorganic fertilizer, and provide theoretical basis and technical support for the application of biological fertilizer in the green production of Chinese cabbage.

Plant weight, plant height, scene, leaf number, leaf length, and leaf width were the main indicators reflecting the growth of cabbage. As can be seen from Table 3, the maximum mass of a plant is a, g, the minimum value of treatment b, between g and c, is g, and the purification fertilizer makes the plant weight of cabbage higher than half of that of organic fertilizer and chemical fertilizer, but increasing the plant mass of biological fertilizer is better than half of that of organic fertilizer and chemical fertilizer. In terms of stump and leaf count, treatment A was significantly better than treatment B and C.

In terms of degree and blade length, there was not much difference between treatments A and C, but both were much higher than treatment B. In terms of leaf width, there is not much difference between the three.

The contents of reducing sugar, vitamin C and crude fiber were important indicators to evaluate the nutritional quality of cabbage, and nitrate content was an important index to evaluate its safety and quality. It can be seen from Table 4 that the reducing sugar and vitamin C contents of treatment B and C are significantly higher than those of treatment A, and the addition of organic fertilizer and biological fertilizer can greatly increase the reducing sugar and vitamin C content of Chinese cabbage and improve the nutritional value of Chinese cabbage. The results showed that the crude fiber and nitrate contents of treatment B and C were significantly lower than those of treatment A, and the addition of organic fertilizer and biological fertilizer could significantly reduce the crude fiber and nitrate content of Chinese cabbage and improve the quality of Chinese cabbage.

How should cabbage be topdressed? Farmers learn these 3 methods to increase cabbage yields!

Top dressing can be divided into three times, the first top dressing is top dressing in the outer leaf growth period; The second top dressing is before the start of ball set; The third top dressing was in the bulb hypertrophy stage. There should be enough organic fertilizer as the base fertilizer for the fertilization of cabbage, and the fertilizer is divided into elemental fertilizer and compound fertilizer.

It should be based on the actual local situation, choose the appropriate chemical agent for effective control, prohibit the use of pesticides at will, it is best to apply pesticides in the young age of pest larvae, at this time the drug can have a better effect, should continue to supply sufficient fertilizer and water during the growth period, and apply fast-acting nitrogen fertilizer many times.

White manure and some urea to fertilize. In the future, fertilizer should be applied once a week, and the fertilizer should be paid attention to not excessive, and the fertilizer can be thinner. The distribution of cabbage root group is shallow, and the absorption capacity is low, so sufficient fertilizer and water should be continuously supplied during the growth period, and fast-acting nitrogen fertilizer should be applied many times to obtain high quality and high yield.

What fertilizer is good to chase? If you can eat green food better, it is best to use fermented various cake fertilizers and top dressing. Bean cakes, rape cakes, sesame cakes.

Top dressing with sesame cakes, the baby cabbage tastes fragrant and has a better taste. Cooking soup and stir-frying are relatively bad. But when topdressing, what fertilizer is good, which should be scientifically topdressed according to the different growth periods of Chinese cabbage, can not be generalized, can not be chased to the end because of the early stage suitable for topdressing nitrogen fertilizer, to determine the balance of fertilization according to the various growth stages of Chinese cabbage.

<> the growth period of cabbage, it is generally divided into several stages, such as germination stage, seedling stage, rosette stage, and bulbous stage. Among them, the cabbage in the germination stage, seedling stage and rosette stage can be called small cabbage. Most of the cabbage planted after the beginning of autumn is now in the middle and late stages of the seedling stage.

Do a good job in the management of transplanted seedlings first, and the transplanting seedbed should be carried out twice for seedlings. Once within 6-10 days after emergence, when the seedlings have 1 2 true leaves.

When the first seedling is carried out, the second seedling is carried out after 5 to 7 days.

Chinese cabbage is a product of leaf balls, which needs sufficient nitrogen, and when nitrogen is deficient, it grows slowly, the leaves are small and thin, and the leaf balls are not full. Chinese cabbage in different growth periods, the absorption of nitrogen, phosphorus, potassium is different, germination to rosette stage accounts for 10% of the total absorption, planting cabbage should be applied before the plantation of foot fertilizer, with the bottom fertilizer as the main, top dressing as a supplement, with organic fertilizer water top dressing slow seedling fertilizer, Chinese cabbage seedlings can be applied 1 to 2 times top dressing.

Chinese cabbage can be planted in spring and autumn, and can be planted in temperate regions, and it is not suitable for planting Chinese cabbage in areas that are too cold.

There are more plantings, and it is also the season to plant cabbage, so today we will talk about the fertilizer management of cabbage. After the Chinese cabbage is transplanted, it is necessary to water it in the morning and evening in the first few days, because the weather is still very hot at that time, and if there is a condition, you can set up a shade net on the transplanting Chinese cabbage field to prevent the sun from cooling down and avoid direct sunlight to dry the vegetable seedlings. Watering is done to allow the roots to take root quickly, as well as to cool the soil.

Top dressing is needed, old vegetable plots can be used less, new vegetable plots need to be used more, and it is best to apply potassium fertilizer, potassium fertilizer can enhance the disease resistance of cabbage and increase nutrients, top dressing before entering the rosette stage and starting to wrap the heart.

In the vegetative growth stage of general crops, top dressing is mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer, in the reproductive growth stage, phosphorus and potassium fertilizer are the mainstay, supplemented by nitrogen fertilizer, and the planting and production of Chinese cabbage, in order to improve the commodity quality of Chinese cabbage, we must prevent the flowering (reproductive growth) of Chinese cabbage, until the harvest, it has been a vegetative growth stage, which requires us to top dressing, mainly nitrogen fertilizer, phosphorus and potassium fertilizer, on this basis, according to the different growth stages, scientific and balanced fertilization, Meet the main nutrients required by Chinese cabbage at different growth stages.

The growth period of cabbage is relatively short, we should apply enough fertilizer before sowing, and then turn over the ground, the bottom fertilizer is best to use the rotted farmhouse fertilizer, an average of 2000 kg to 3000 kg per mu, and at the same time you can also apply some cake fertilizer and then plough, in short, the more sufficient the bottom fertilizer, the better.

Cabbage is a water-loving and fertilizer-loving plant, and after two weeks of planting, the cabbage can be topdressed, and the fermented, thin human feces can be splashed with water. The second topdressing is mainly nitrogen fertilizer, and then applied with phosphate and potassium fertilizer.

Baby bok choy belongs to one of the many varieties of cabbage and belongs to the cruciferous family.

Vegetables, biennial vegetables. Cabbage is originally a vegetable grown in winter, but in recent years, it has been improved and can be grown all year round. The soil for planting Chinese cabbage should be clay loam soil with good fertilizer and water retention, and for fertilization, it is better to apply less than many times, not more often.

So how exactly do baby cabbage top dressing?

In the case of full basal fertilizer, the top dressing of cabbage can be divided into three times, and the first top dressing is in the outer leaf growth period; The second top dressing is before the start of ball set; The third top dressing was in the bulb hypertrophy stage. In order to maintain fine fertilization, each fertilization can be subdivided into secondary fertilization according to actual needs. The amount of fertilizer applied in each stage is as follows:

Base fertilizer

There should be enough organic fertilizer as the base fertilizer for the fertilization of cabbage, and the fertilizer is divided into elemental fertilizer and compound fertilizer.

Elemental fertilizer: generally apply 2000 decomposed organic fertilizer per mu, with ammonium sulfate.

15 24, superphosphate.

33 55, potassium chloride.

Compound fertilizer: generally apply 2000 decomposed organic fertilizer per mu, with 50% (10-20-20) or so compound fertilizer 25 31, superphosphate 18.

The first top dressing (outer leaf growth period): Generally, when 8 10 true leaves of Chinese cabbage, urea is applied per mu.

kilograms of potassium chloride;

The second topdressing (before the start of balling): this topdressing is the focus of the three topdressing of cabbage, with urea 8 10 per mu and potassium chloride 4 6 per mu, which can significantly improve the yield.

The third topdressing (bulbous hypertrophy stage): topdressing in the bulbous hypertrophy stage is applied urea 8 10 per mu; Potassium chloride.

Note: In China, it is easy to cause heartburn due to calcium deficiency in the white square area, and calcium nitrate can be sprayed at the early stage of balling.

Solution; Southern region.

In acidic soils, bok choy is prone to boron deficiency, so borax can be used.

The solution is sprayed on the page, which has a good preventive effect.

The above is the fertilization period of Chinese cabbage and the amount of fertilizer applied in each fertilization period.

In short, the top dressing of cabbage should follow the principle of light before and heavy at the back, and the rosette stage to the early stage of balling is the focus of fertilization, which should be focused on. Depending on the region, attention should also be paid to the disease caused by the symptoms of nutrient deficiency. In the process of fertilizing cabbage, if you have any questions, you can leave a message in the comment area and we will work together.

Seedling stage: the seedling stage of the field with abundant base fertilizer, generally need little fertilizer, fusion irrigation can be applied a little basal fertilizer, such as urea 5 8kg mu can be, when the rise is strong, the key is to cultivate the soil as the leading, improve the permeability of the soil layer, and promote the growth and development of seedling rhizomes. Romatic period:

In order to promote the rapid growth and development of seedlings, the flowers and leaves are dense and hypertrophied, it is necessary to apply nitrogen, phosphorus, potassium ternary compound fertilizer 10 15kg mu, and the conditional ditching can be applied into the manure organic fertilizer 1000kg, at this time the Chinese cabbage is still less, and the compound fertilizer is best to be ditched together with the organic fertilizer, and then watered thoroughly.

Cabbage is also called sweet cabbage, and there is a difference between cabbage. The growth period of cabbage is long, and it takes 3 to 4 months from seedlings to hearts. The growth period of cabbage is short, and the large trees can be picked and eaten in 1 month from the growth and development of the phantom seedlings, leaving small trees to grow and develop again.

Just apply the soles of the fertilizer, and chase the fertilizer 1 or 2 times during the whole growth process. What fertilizer is good to chase? If you can better taste green organic food, it is best to fertilize it with a variety of peanut bran that is mellow.

Bean cakes, rape cakes, sesame cakes.

Fertilized with sesame cakes, the cabbage flavor is fragrant and the taste is stronger. The soup and cooking are very bad. If you use compound fertilizer or urea, although the cabbage grows quickly, it does not taste very good, as if it has an ammonia smell.

When stir-frying, it does not break, and there is no such fragrant taste. At the cabbage stage, more nutrients are digested and absorbed, followed by potassium and phosphorus, and more potassium, nitrogen and phosphorus are needed at the fruiting stage.

According to the regularity of the above fertilizer demand, for the Chinese cabbage field with a medium level of production, the use of base fertilizer can be distributed in this way, and the organic fertilizer can be reapplied to give efficient nutrients, and an acre of land can be used with 3 tons of organic fertilizer that is fully decayed, with 5kg of urea, 5kg of ammonium sulfate, 30kg of phosphate fertilizer, and 7kg of ammonium sulfate. When planting cabbage, the best chemical fertilizer is organic fertilizer. Chinese cabbage with organic fertilizer, thick leaves and core-filled porcelain.

Crisp leaf fertilizer, good quality, high price! Nowadays, there is almost no organic fertilizer, so when it is fertilized. Even urea can be used, and it can also meet the needs for the growth and development of Chinese cabbage.

The application of base fertilizer should be based on long-term relief fertilizer, the main species are all kinds of weeds, grass billet, livestock and poultry manure, garden soil and other compost, as well as a variety of cake fertilizer after decay, etc., fertilization should be combined with soil tillage, the method is to scatter the compost evenly to the vegetable garden to be cultivated, cake fertilizer is also carried out in the same way, and then deep ploughing the land, so that the manure and the soil are closely combined, and after 3 4 days of drying the soil ditch for furrow ready for sowing.

It is best to use nitrogen fertilizer. Because nitrogen fertilizer can make the plant grow more vigorously, it can also increase the yield.

When planting bok choy, you can choose to use this kind of manure such as chicken manure or sheep manure. It can effectively increase the yield of Chinese cabbage, and there is no chemical residue.

Fertilization should be carried out at the beginning, and then top dressing should be carried out when it grows to a certain stage, so as to ensure that the cabbage grows very well and can play a very good role.

Fertilizer should be applied every half a month or so, and each time the most fertile time should be watered in advance, so as to achieve better results, and can be more perfect, at the same time, top dressing should also add some organic fertilizer and nitrogen fertilizer and phosphorus fertilizer, because only in this way can the nutrition be balanced.

Cabbage topdressing should be done once every half a month, and the dosage is 80 kg of phosphorus and potassium fertilizer per mu.