What is the best fertilizer for growing vegetables?

It is best to use farmhouse manure as fertilizer for the soil for growing vegetables.

Common vegetables are: cabbage, spinach, etc.

Cabbage cultivation techniques.

Cabbage is hardy and prefers a cool climate, so it is suitable for growing in the cold season. If it is cultivated in the high temperature season, it is prone to diseases and insects, or the quality is inferior and the yield is low, so it is not suitable for summer cultivation. It is very resistant to low temperatures.

After the temperature reaches minus 3, if the temperature can gradually rise, it can resume growth, but if it reaches minus 8 and the temperature continues to drop to about minus 11, it cannot resume normal growth and suffers from frost damage. Cabbage is suitable for planting in loam, sandy loam and black loess that retain fertilizer and water and is rich in organic matter, not suitable for planting in sandy soil that is easy to leak, and even more unsuitable for planting in clay soil with poor drainage.

In the north, the planting time is generally from 1 to 20 August.

Seedlings: 5 to 6 days after the emergence of seedlings, the first seedlings, to the weak and strong, strip sowing seedlings spacing 2 to 3 cm; When the Chinese cabbage has 3 to 4 leaves, the seedlings of the strip sowing plot are 8 cm, and about 3 plants are left in each hole when the hole is sown; After another 5 to 6 days, the third seedling is sent.

Seedling: The seedlings grow for about 25 days to reach the cluster stage, and the seedlings are set according to the distance between 50 to 60 cm, and about 2,000 seedlings are left in 667 square meters. If the lack of seedlings is found, it should be replanted in time, and the seedlings should be watered in the afternoon or cloudy day on a sunny day.

Cultivating and weeding: 3 times of tillage, respectively after the second seedling, after seedling setting and in the middle of the rosette. Cultivating combined with weeding.

Reasonable watering: If the bottom moisture is insufficient, water in time after sowing to ensure that the seedlings are strong and strong. After thinning seedlings and setting seedlings, water 1 water each. Watering at the beginning of the rosette promotes the growth of the trees. During the balling period, watering should be carried out in combination with top dressing, and the amount of watering should be large and uniform. In the later stage, appropriate water control promotes the core wrapping.

Timely topdressing: 667 square meters of rosette stage topdressing nitrogen, phosphorus, potassium compound fertilizer 15 to 20 yuan. At the beginning of balling, 667 square meters of nitrogen, phosphorus and potassium compound fertilizer were topdressed with 30 to 40 kg.

No more topdressing within 20 days before harvest. Combined spraying at the rosette stage with 1 spray of foliar fertilizer every 7 to 10 days for a total of 2 to 3 times, using a mixture of urea and potassium dihydrogen phosphate, sprayed after 16:00.

Harvest: After mid-November, Chinese cabbage basically stops growing and enters the harvest period. After the beginning of December, it should be harvested in time to prevent frost damage.

If you want the vegetables you grow to grow better every year, then use the following fertilizers.

1. Animal manure.

Animal manure can be said to be the best organic fertilizer, in the past, in the countryside, there were no chemical fertilizers and pesticides, every year all rely on manure to grow crops, not only the soil fertility is sufficient, the crops also grow very well, and more importantly, there are few pests and diseases, even if there is a little is also very easy to solve. And all kinds of manure can play a role in nourishing the land and fertilizing the land, until now, there are many people in the countryside who do not use chemical fertilizer at all, but vegetables grow well every year, the reason is that they use a lot of manure every year.

2. All kinds of cake fertilizer.

There are many types of cake fertilizer, including soybean cake, peanut cake, sesame cake, rapeseed cake, etc., cake fertilizer is generally used for some cash crops in rural areas, is a very good plant organic fertilizer, this kind of fertilizer not only provides nutrients for crops with energy, the taste of vegetables grown with it is good, and is now widely used in the planting of various melons and fruits, as a base fertilizer, top dressing, mixed with other fertilizers.

3. Enzyme fertilizer.

Many people may be a little unfamiliar with enzyme fertilizer, enzymes are generally made for people to drink in the past, and now many people use it in planting, the effect is very good, and the raw materials are used everywhere, the production is also very simple, especially suitable for friends who grow vegetables in their own small vegetable gardens, rooftops, and balconies, if you grow fewer vegetables, you may wish to give it a try.

When planting vegetables, slow-release fertilizer with a long effective time is generally used as the base fertilizer. When planting vegetables, different fertilizers need to be applied according to the type of crops and growth periods, and leafy vegetables are usually mainly nitrogen fertilizers; Fruits and vegetables are usually dominated by high potassium fertilizer, urea needs to be applied during the plant growth period, and an appropriate amount of phosphorus and potassium fertilizer needs to be applied before flowering and fruiting to promote plant flowering and fruiting.

It is good to use fermented chicken manure, cow manure, and pig manure as the base.

Growing vegetables and leaves requires more nitrogen fertilizer.

Nitrogen fertilizer refers to a unit fertilizer with nitrogen as the main component, with an indicated amount of n, and can provide plant nitrogen nutrition when applied to the soil. Nitrogen fertilizer is the most produced and used fertilizer variety in the world; Appropriate nitrogen fertilizer dosage plays an important role in increasing crop yield and improving the quality of agricultural products. Nitrogen fertilizer can be divided into ammonia nitrogen fertilizer, ammonium nitrogen fertilizer, nitrate nitrogen fertilizer, ammonium nitrate nitrogen fertilizer, cyanide nitrogen fertilizer and amide nitrogen fertilizer according to the nitrogen-containing group.

The main raw material for the production of chemical nitrogen fertilizer is synthetic ammonia, and the Haber method device for generating synthetic ammonia was built in 1909, and was the first to achieve industrialization in Germany, becoming the basis of the nitrogen fertilizer industry, in the forties and fifties of the 20th century, ammonium sulfate was the most important nitrogen fertilizer variety; In the 60s, ammonium nitrate was added; Since the 70s, urea has become the dominant nitrogen fertilizer variety. Ammonium bicarbonate is one of the main nitrogen fertilizer varieties produced in China in the 80s.

Urea is a physiological neutral fertilizer, which does not leave any harmful substances in the soil, and has no adverse effects when applied for a long time. However, if the temperature is too high in granulation, a small amount of biuret will be produced, also known as biuret, which has an inhibitory effect on crops. China stipulates that the content of urea biuret for fertilizer should be less than.

When the content of biuret is more than 1%, it can not be used as seed fertilizer, seedling fertilizer and foliar fertilizer, and the urea content in other application periods should not be too much or too concentrated.

Urea is an organic nitrogen fertilizer, which can be absorbed and utilized by crops after being hydrolyzed into ammonium carbonate or ammonium bicarbonate by urease in the soil. Therefore, urea should be applied 4 to 8 days before the fertilizer requirement of the crop.

Application: Urea is suitable for base fertilizer and top dressing, and sometimes also used as seed fertilizer. Urea is molecular before conversion, which cannot be adsorbed by the soil, and should be prevented from being lost with water; The ammonia formed after conversion is also volatile, so urea should also be deeply covered with soil.

1.It is nitrogen, phosphorus and potassium compound fertilizer + urea, which is a full chemical fertilizer method, which can also quickly promote the growth of melon and fruit seedlings, but it is not very recommended, and chemical fertilizer is only used in nutritional emergencies.

2.It is urea + farm fertilizer + plant ash, urea can quickly supplement nitrogen nutrients, farm fertilizer and plant ash can gradually supplement potassium, phosphorus, calcium, boron and other nutrients, and can also quickly promote the growth of melon and fruit seedlings.

3.It is a whole farm fertilizer, using fermented liquid fertilizer (or pig manure water) + farm fertilizer, which has a large amount of nitrogen nutrients in the liquid fertilizer, but it will be slightly milder.

You can use farmhouse fertilizer, nitrogen fertilizer, and phosphorus fertilizer, which are all conducive to the growth of plants and can make plants more vigorous.

The main thing is the classification of dishes. Leaves, stems, and fruits are different, and it is better for leaves to need high nitrogen fertilizer, and for fruits, it is better to be high in potassium. In general, depending on the crop and fertilization habits, there are differences between base fertilizer and top dressing.

The bottom fertilizer recommends red square pure potassium sulfate and sunny day potassium sulfate. Top dressing mainly considers urea and water-soluble fertilizer.

Different fertilizers should be selected according to the types of vegetables, and more nitrogen fertilizers should be applied to leaves, and high potassium fertilizers should be supplemented for fruits and vegetables. Usually when planting, the plantar fertilizer should be applied first, and the fertilizer should be slow-release fertilizer. In its growth period, it needs to be properly dressed, generally with urea or water-soluble fertilizer, which is easier to absorb.

In addition, the amount of fertilizer must be controlled to avoid fertilizer damage.