How many ways to calculate the amount of vegetable formula fertilizer?

Answer: There are many calculation methods for the amount of vegetable formula fertilizer, which should be adapted to local conditions and flexibly mastered. At present, the relatively fast and accurate calculation method adopts advanced nutrition diagnosis technology and modern electronic information technology, and takes the nutrient balance method, fertilizer effect function method, and soil and plant nutrient test recommended fertilization method and soil nutrient abundance and deficiency index method as the basic methods.

In the formula design of vegetable special fertilizer, it is necessary to first determine the dosage of nitrogen, phosphorus and potassium fertilizer and the corresponding fertilizer combination and formula, and then guide vegetable farmers to apply fertilizer scientifically by preparing and providing vegetable formula fertilizer or issuing fertilizer distribution notice.

Fertilization dosage and method of vegetables.

Answer: There are many calculation methods for the amount of special formula fertilizer for flowers, which should be adapted to local conditions and flexibly mastered. At present, the relatively fast and accurate calculation method is to combine advanced nutrition diagnosis technology with modern electronic information technology, and take the nutrient balance method, fertilizer effect function method, as well as the recommended fertilization method of soil and plant nutrient testing and the soil nutrient abundance and deficiency index method as the basic methods.

In the formula design of special fertilizer for flowers, it is necessary to determine the dosage of nitrogen, phosphorus and potassium fertilizers and the corresponding fertilizer combination and formula, and then guide flower farmers to apply fertilizer scientifically by preparing and providing flower formula fertilizer or issuing fertilizer distribution notices.

Answer: There are many calculation methods for the amount of formula fertilizer for cash crops, which should be flexibly mastered according to local conditions. At present, the relatively fast and accurate calculation method adopts advanced nutrition diagnosis technology and modern electronic information technology, and takes the nutrient balance method, fertilizer effect function method, as well as the recommended fertilization method of soil and plant nutrient testing and the soil nutrient abundance and deficiency index method as the basic methods.

In the formula design of special fertilizers for cash crops, it is necessary to first determine the dosage of nitrogen, phosphorus and potassium fertilizers and the corresponding fertilizer combinations and formulas, and then guide farmers to apply fertilizer scientifically by preparing and providing formula fertilizers for cash crops or issuing fertilizer distribution notices.

Answer: Orchards with high commercial value suitable for planting bai fruits have the best soil organic matter content, reaching more than 3% of dao2%. The recommended application rate of organic fertilizer is based on the balance of soil return organic matter mineralization and accumulation in orchards, aiming to maintain or increase soil organic matter content levels.

If it has been reached, it is only necessary to replenish the amount consumed by the mineralization of organic matter each year. Generally, the soil organic matter content is about tons, and the annual mineralization rate is about 2%, and tons should be replenished every year. For example, if the organic matter content of compost is 15%, then tons of compost should be applied every year.

To increase soil organic matter content, the amount of organic fertilizer must be higher than the amount of organic fertilizer used to supplement the annual mineralization rate. However, the amount of supplementation should be gradual, and it is better to increase it every year.

Some vegetables eat leaves, some eat fruits, some eat flowers, leaf nitrogen fertilizer fruits are high in potassium, and can flexibly adjust the properties of fertilizers according to the different vegetables planted, among which urea, potassium fertilizer, compound fertilizer and farm fertilizer are more commonly used.

Fertilizers for planting vegetables include farm fertilizer, such as compost, manure, biogas fertilizer, green manure, crop straw, mud fertilizer, cake fertilizer, etc. Biological fertilizers, including humic acid fertilizers, rhizobia fertilizers, phosphorus bacteria fertilizers, compound microbial fertilizers, etc.

Commonly used chemical fertilizers generally include urea, diammonium phosphate, potassium sulfate, some compound fertilizers and some instant fertilizers that can be sprayed on the foliar surface.

Fertilizer application rate Nutrient application rate Fertilizer nutrient content, of which fertilizer nutrient content has been indicated on the fertilizer bag. Suppose that the recommended fertilizer dosage of a plot is kilograms of pure nitrogen, phosphorus pentoxide and potassium oxide per mu. Urea is applied in a single item (the nitrogen content is generally 46%), and the amount is kg).

Potassium sulfate (potassium oxide content is generally 50%) is applied in kilograms). If a compound fertilizer is applied, the amount should be calculated based on the least recommended fertilizer on the formula application table, and then the other two fertilizers should be added. If the nitrogen, phosphorus and potassium content indicated on a compound (combined) fertilizer bag is hail 15 15 15, then the plot should be applied with this compound fertilizer:

kg). In this way, the phosphorus in the soil already meets the nutrients required by the crops. Because the compound fertilizer ratio is fixed, it is difficult to meet the needs of different crops and different soils for various nutrients at the same time, so it is necessary to add unit fertilizer to supplement, and the calculation formula is:

Amount of additional fertilizer = (recommended amount of fertilizer - amount of fertilizer applied) Effective content of fertilizer to be applied. The plot has been applied with 32 kg of compound fertilizer with 15% nitrogen, phosphorus and potassium content, which is equivalent to 32 15% = kg of pure nitrogen in the soil), phosphorus pentoxide and potassium oxide in each kilogram. According to the requirements of the recommended fertilizer application amount of pure nitrogen kilogram and potassium oxide kilogram on the table, it is also necessary to increase urea (kilogram) and potassium sulfate (kilogram). Ratsa.

Mix the soil with a large amount of rice husk and chicken manure and turn it deeply. When starting to plant base fertilizer, it is generally supplemented with balanced potassium sulfate compound fertilizer, appropriate medium and trace elements. Due to the new soil, the soil fertility is poor, and sufficient fertilizer should also be supplemented in the process of top dressing.

It doesn't cost you money to improve the soil, and if you don't have it, it's not expensive to buy some. In addition to using rice husk and chicken manure, the newly opened vegetable plot can also buy organic fertilizer to improve the soil and make base fertilizer, which is also very convenient. In the older generation, there is also the habit of growing vegetables with the residue left over after squeezing oil at home (we call vegetable withering and tea withering in rural areas).

The saponins and glycosides contained in vegetable withered and tea withered have a certain control effect on soil pests.

Organic fertilizers. It is to use well-rotted animal manure, or fermented peanut cake, cottonseed cake, rapeseed cake, etc., to grow vegetables, and use their organic ingredients to provide the nutrients needed for the growth of the grown vegetables. This kind of organic fertilizer has a long fertilizer effect, especially it is recommended to choose the sheep manure that is re-added and re-rotted, such as the process of opening gold rotted sheep manure.

This kind of manure has few harmful bacteria, contains beneficial bacteria, does not burn the roots, does not hurt the roots, and is a good maintenance of the root system and soil.

The base fertilizer is mainly organic fertilizer, which should account for 60% of the total fertilizer requirement in the life of the crop. Generally, the production of protected areas is better with chicken manure and pig manure with higher nutrient content, but we must pay attention to full decomposition, and the process of decomposition will produce higher temperature topdressing, soil fertilization and foliar fertilization. Soil topdressing is mainly carried out in combination with watering and soil cultivation during the vigorous growth period of vegetables, mainly using human manure and bio-poly fertilizer.

Foliar fertilization can be used at the seedling stage and growth stage.

Cake fertilizer: sesame sauce residue, soybean cake, peanut cake, cottonseed cake, rapeseed cake contains a large amount of nitrogen, phosphorus, potassium, after the preparation belongs to the acid fertilizer, more suitable for acidic soil flowers, dry application of fertilizer effect slowly release, water application can be used as a fast-acting fertilizer. Vegetable waste.

Can be used as a composting feedstock. The minimum standard for composting: the temperature of the stack is above 55 degrees Celsius for 10 days; The trough compost temperature is above 55 degrees Celsius and kept for 7 days.

Mix the soil with a large amount of rice husk and chicken manure and turn it deeply. There is also animal manure that has been well decomposed. Cake fertilizer: sesame sauce residue, soybean cake, peanut cake, cottonseed cake, rapeseed cake contain a lot of nitrogen, phosphorus, potassium, after the preparation is acidic fertilizer, can be used as a quick-acting fertilizer when water applied. Vegetable waste.

Nitrogen fertilizer, phosphorus fertilizer, etc. Nitrogen fertilizer can increase nutrients, and phosphorus is also a nutrient that plants need.

What is called"Formula fertilization"？Professional problems, must refer to the data, according to the data: based on soil testing and fertilizer field tests, according to the law of crop fertilizer demand, soil fertilizer performance and fertilizer effect, with a variety of elemental fertilizers or compound fertilizers as raw materials, the fertilizer suitable for specific areas and specific crops is prepared, which is called formula fertilizer.

To put it simply, according to the soil quality and test data of the local soil, what is lacking in the soil is supplemented, and the fertilizer of the missing elements is provided for crop growth. This is one of them, and we call it fertilization for the soil.

The second is because the crop is fertilized according to the characteristics of the crop. Phosphorus-loving crops such as leguminous soybeans, peanuts, tomatoes, rapeseeds, etc., in order to ensure their yield, must ensure the highest level of phosphorus; Tobacco, potatoes and watermelon crops are potassium-loving crops, and attention should be paid to potassium fertilizer supply. In addition, the requirements for fertilizers are different between different varieties of the same crop, and they should be treated differently.

Third, with fertilization any kind of fertilizer can not fully meet the needs of crop growth, only the combination of fertilizer with different nutrients can achieve good results. Some farmers have serious blindness and arbitrariness in the use of fertilizers, and only pursue the effect of chemical fertilizers, resulting in the imbalance of nitrogen, phosphorus and potassium application ratios, ignoring the application of organic fertilizers, resulting in unnecessary losses.

The benefits of formula fertilization to crops Formula fertilization can adjust the content of trace elements in the soil to make the element content in the soil more comprehensive, and formula fertilization can adjust the rational utilization of nitrogen, phosphorus and potassium and medium and trace elements according to the crop's preference for elements, give full play to the utilization rate of chemical fertilizers, so that crops can get comprehensive and reasonable nutrients, maximize the potential of crops, so as to ensure a bumper harvest and improve the economic benefits of crops.

The normal growth of various crops has different requirements for various components of fertilizers, and general crops need nitrogen, phosphorus, potassium and trace elements such as iron, zinc, sodium, etc. Generally, the growth of sparse vegetables requires more nitrogen elements. Potatoes need more potassium to grow, legumes need more phosphorus, trace elements are also very important, if the tree is deficient in iron, yellow leaf disease will occur.

Therefore, the amount of nutrients required by different crops is also different. Therefore, agricultural experts now propose formula fertilization methods to meet the needs of different crops for different fertilizer components, so as to improve the yield and quality of crops per unit area, and maximize planting benefits. At present, the means of production of various crop fertilizers, such as corn fertilizer, grape fertilizer, etc., is the specific practice of formula fertilization.

The first should be noted, is to see what fertilizer is missing in the soil, according to the lack of fertilizer in the soil to supplement, the second is to choose some relatively low concentration, the third is to choose some compound fertilizer, these cooperate with each other, the fourth fertilization, or should ensure that the roots can be accepted, the fifth in the fertilization should pay attention to the time, generally at 9 o'clock in the morning when choosing fertilization.

It should be noted that when fertilizing, it is still necessary to choose the right fertilizer according to the growth of the roots, but when fertilizing, it is best to ensure that all the roots can be contacted, and try to choose some relatively low concentrations and choose spraying watering.

It is necessary to understand the habits of vegetables, and at the same time, we should also master the laws of fertilization, pay attention to the fertility of the soil, and also need to improve the performance of vegetables, and master the method of fertilization.

It is necessary to pay attention to the laws, but also to the size of the fertilizer, but also to the proportion of the formula, but also to the technical aspects, but also to the fertilizer and water volume.

1.It is necessary to pay attention to the amount of fertilization, 2The type of fertilizer applied, 3Methods of fertilization, 4Dilution, 5The last fertilization time and so on.

Commonly used fertilization methods are:

Base fertilizer. Fertilizer applied in conjunction with tillage before sowing. It provides the nutrients needed by crops throughout the growing season. The dosage is large, and most of them are organic fertilizers with slow fertilizer effect, which can be sprinkled, striped, layered, ringed and radial.

Seed fertilizer. Fertilizer is applied when sowing seeds or planting. On the one hand, it provides nutrients, and on the other hand, it improves the physical properties of the seedbed.

Seed fertilizers are generally highly decomposed organic fertilizers or fast-acting fertilizers, bacterial fertilizers, etc. The application of seed fertilizer should strictly prevent corrosion and poisoning that may occur when the fertilizer and seeds come into contact with each other. Seed fertilizer application can be based on different crops and fertilizer types using several methods such as seed dressing, dipping roots, soaking, strip application, hole application and seed covering.

Topdressing. The fertilizer applied during the growth and development of crops is a supplement to the fertilizer required in the growth process of crops, and generally requires the application of fast-acting fertilizers. There are several methods of application, such as sprinkling, strip application, hole application, irrigation with water and root application.

Farmers mainly rely on two principles for fertilizing and calculating formula fertilizer.

First, the physical and chemical properties of the soil were detected. The physical and chemical properties of soil are the key to determining whether soil can provide effective nutrients. Only on the premise that the physical and chemical properties of the soil are determined can the planted crops be formulated.

As the first step in soil testing formula fertilizer, soil testing is generally done by the local agricultural technology department.

The second is the recipe. To put it simply, the formula is to fertilize according to the needs of crops, combined with the fertilizer supply capacity of the soil, according to the principle of how much the crop needs, how much the soil can provide, and how much additional supplements. In general, recipes require local agricultural technology departments.

After years of experimentation, it was determined. For example, the expected production target for rice is 700 kilograms per mu. After several years of experimental observation by the agricultural technology department, 6 kg of phosphorus pentoxide, 13 kg of pure nitrogen, 9 kg of potassium oxide, 500 grams of zinc fertilizer and 500 grams of silicon fertilizer were applied per mu under local soil conditions.

Then this is the formula fertilization scheme for rice with a local target yield of 700 kg.

Finally, there is fertilization. After knowing the fertilization plan of the target yield of a certain crop in the local area, the local farmers purchase the corresponding formula fertilizer according to the actual local situation. If there is no corresponding formula fertilizer, you can buy elemental fertilizer and self-formulate according to the formula ratio.

In addition, soil fertility can also be improved by non-chemical elements of nitrogen, phosphorus and potassium, and it is also necessary to improve the content of organic matter and soil biodiversity, and to achieve the improvement of soil organic matter content and biodiversity without the application of chemical fertilizers, nitrogen, phosphorus and potassium crops have grown well, and the soil organic matter content remains above 5%, and high-quality agricultural products can be grown without fertilization. However, the lack of soil organic matter and the application of chemical fertilizers do not produce crops. Therefore, it is enough for farmers to apply a considerable amount of high-quality bio-organic fertilizer to the field every year, and they can plant whatever they want to plant and produce stable and high-quality products.

In general, farmers determine the formula fertilization scheme when planting crops. It mainly relies on the fertilization plan issued by the local agricultural technology extension department. Combined with the local fertilization plan, according to their own fertilization habits, purchase the corresponding formula fertilizer or elemental fertilizer for quality matching.