What are the advantages of compound fertilizer?

What are the advantages of compound fertilizer? Compound fertilizer is an important fertilizer for agricultural planting. Compared with other chemical fertilizers of the same type, compound fertilizer has the advantages of high nutrient content, less auxiliary components and good physical properties. It is very important to improve the utilization rate of fertilizers and promote the high yield and stability of crops. But it also has some shortcomings. For example, its nutrient ratio is always fixed, and the types, quantities and proportions of nutrients required for different soils and different crops are diverse. Let's take a look at it together!

What are the compound fertilizers?

1. Special fertilizer for rice: It is made of urea, ammonium phosphate and potassium chloride as the main raw materials. The effective nutrient content of nitrogen, phosphorus and potassium is ≥25%. It can be used as base fertilizer and top dressing. The average amount of mu is 60-75 kg, the base fertilizer accounts for 60-70% of the fertilizer application, and the top dressing accounts for 30-40%.

2, corn special fertilizer: is based on the characteristics of fertilizer in the growth process of corn, suitable for the demand for nitrogen, phosphorus and potassium in corn, special formula for the production of special fertilizer [1]

3. Special fertilizer for bamboo: It is made of urea, ammonium phosphate and potassium chloride. The effective nutrient content of nitrogen, phosphorus and potassium is ≥28.5%. The use of 50 kg per mu is combined with weeding from May to June every year. Apply or ditch.

4. Special fertilizer for tea: It is made of urea, ammonium phosphate, potassium sulfate and appropriate amount of micronutrients such as magnesium and boron. The effective nutrient content of nitrogen, phosphorus and potassium is ≥25.0%. To determine the amount of fertilizer, the average yield of dried tea is 50, 100, 150 kilograms per mu, and 70, 90, 120 kilograms of special fertilizer are applied respectively. According to the 50% of the total dosage in the first month before the spring tea mining, the spring tea takes 25% of the total amount after picking, and the autumn tea accounts for 25% of the total amount 15-20 days before the picking.

5. Tobacco special fertilizer: Generally, the medium fertility field is 50 g/plant, and the strip is applied when the tobacco is transferred.

6. Potassium sulphate fruit tree fertilizer: It is based on urea, ammonium phosphate and potassium sulphate. The effective nutrient content of nitrogen, phosphorus and potassium is ≥36%. According to the mature tree 3-4 kg/year, the application is evenly applied near the canopy drip line. It can be implemented by ring, circle or strip, and the depth of the groove is 30CM.

7. Non-polluted vegetable fertilizer: Urea, ammonium phosphate and potassium sulfate are the main raw materials. The effective nutrient content of nitrogen, phosphorus and potassium is ≥35%, and the fruits and vegetables are 80-150 kg/mu, 30-60 kg. Base fertilizer, 50-90 kg for topdressing. Leafy vegetables are 60-120 kg/mu, of which 15-40 kg are used as base fertilizer and 40-80 kg are used as top dressing.

8, eucalyptus special fertilizer: referred to as eucalyptus fertilizer. It is a modern high-tech afforestation product carefully developed according to the unique physiological characteristics of eucalyptus, according to the latest technology of eucalyptus high-yield forest and related scientific theories such as botany, soil nutrition and forestry production.

Not only scientifically matched with the abundant nutrients necessary for the rapid growth of eucalyptus such as ammonia, phosphorus and potassium, but also the lack of trace elements such as boron and zinc in the soil of southern China, the eucalyptus is planted in the absence of organic matter and poor fertility. In the actual situation of mountainous and sloping land, various medium and trace elements such as magnesium, copper and zinc and organic matter containing humic acid are reasonably added. After application, not only can the nutrition of eucalyptus be balanced, but also the growth potential can be enhanced, and physiological diseases such as physiologic diseases can be effectively prevented. The occurrence of this will ensure the healthy and rapid growth of eucalyptus, and greatly increase the yield and output of eucalyptus, and increase the yield and income.

9. High-concentration compound fertilizer: Urea, ammonium phosphate and potassium chloride are the main raw materials. The effective nutrient content of nitrogen, phosphorus and potassium is ≥45%, which can be used as base fertilizer and top dressing. The application rate should be based on soil fertility and crop type. Other factors are determined.

10. Slow release fertilizer and loss of fertilizer.

Advantages of compound fertilizer

The compound fertilizer mainly has granulation processes such as disk granulation, drum granulation, spray granulation, ammonia granulation and the like. Regardless of the granulation process, it has the following advantages:

1. Comprehensive nutrient content and high content: Containing two or more nutrients, it can supply a variety of nutrients needed for crops in a balanced and long-term manner, and improve the effect of fertilization.

2, physical properties are good, easy to apply: compound fertilizer particles generally generally relatively small hygroscopicity for storage and application, more suitable for mechanized application.

3, less sub-components, no adverse effects on the soil: the nutrients contained in the compound fertilizer are mostly necessary for crops to avoid the waste of certain material resources, and to avoid the adverse effects of certain sub-components on the soil.

4, a variety of ratios, is conducive to targeted selection and application: the main feature of compound fertilizer is that it can be selected and applied according to the characteristics of soil nutrients and the nutritional characteristics of crops to avoid the waste of certain nutrients and improve the yield of fertilizer.

5, reduce costs, save costs: compound fertilizers have fewer sub-components, the active ingredient content is generally higher than that of simple fertilizer, the fertilizer with the same nutrient quantity is small, the packaging and transportation cost is low, and the application is convenient.

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