What is trace/medium elements compound fertilizer and how to use it?

What is trace elements compound fertilizer?

Trace element compound fertilizer can be understood as a special type of fertilizer that supplements trace elements (such as iron, zinc, manganese, copper, etc.) in the nutritional needs of crops. Compound fertilizer is a comprehensive fertilizer that mixes nitrogen, phosphorus, potassium and other elements and trace elements in different proportions.

What is medium elements compound fertilizer?

Medium elements compound fertilizer contains  nutrients required during crop growth after nitrogen, phosphorus, and potassium but higher than trace elements. They account for 0.1%-0.5% of the dry weight of the crop and usually refer to the three elements calcium, magnesium, and sulfur.

Why trace elements fertilizer is favored by farmers?

The reason farmer like trace elements fertilier is In recent years, due to insufficient supply of soil trace elements, crop growth and development and yield improvement have been affected. The application of micro-fertilizers to meet crop needs has become an important measure for high quality and high yields in contemporary agriculture. Trace elements are required in very small amounts and are easily fixed by the soil. Therefore, foliar spraying is more effective than soil application using trace elements fertilizer.

What are the kinds of trace elements fertilizer? How much trace elements should be applied to corp/plant?

Boron trace elemets fertilizer:

Boron trace elements fertilizer: Varieties include borax, boric acid, boron magnesium fertilizer, etc. Borax and boric acid are commonly used boron fertilizers. The soil application rate is 0.5-0.75Kg per Acre, the foliar spray concentration is 0.1%-0.3%, the seed soaking concentration is 0.01%-0.1%, and the seed dressing rate is 0.2-0.5g per kilogram of seed.

Manganese trace elemets fertilizer:

Manganese trace elements fertilizer: varieties include manganese sulfate, manganese carbonate, manganese chloride, manganese oxide, etc. Manganese sulfate is a commonly used manganese fertilizer. It is applied to soil at 1-2Kg per mu, foliar spraying concentration is 0.05%-0.2%, seed soaking concentration is 0.05%-0.1%, and seed dressing is 4-8g per kilogram of seeds.

Copper trace elemets fertilizer:

Copper trace elements fertilizer: varieties include copper sulfate, copper oxide, chelated copper, copper-containing slag, etc. Copper sulfate is a commonly used copper fertilizer, applied to the soil at 0.8-1.5Kg per Acre, with a foliar spray concentration of 0.01%-0.05%, a seed soaking concentration of 0.01%-0.05%, and a seed dressing of 300 mg per kilogram of seeds.

Iron trace elemets fertilizer:

Iron fertilizer: Varieties include ferrous sulfate, ferrous ammonium sulfate, iron chelates, etc. Ferrous sulfate is commonly used
To seed, apply 5 kilograms per mu to the soil, and spray the concentration on the leaves at a concentration of 0.5%-0.3%.

Zinc trace elemets fertilizer:

Zinc fertilizer: varieties include zinc sulfate, zinc oxide, zinc chloride, etc. Zinc sulfate is a commonly used zinc fertilizer. It is applied to soil at 1-2Kg per mu, foliar spraying concentration is 0.01%-0.05%, seed soaking concentration is 0.02%-0.05%, and seed dressing is 1-3g per kilogram of seeds.

Molybdenum trace elemets fertilizer:

Molybdenum fertilizer: varieties include ammonium molybdate, sodium molybdate, molybdenum trioxide, etc. Ammonium molybdate is a commonly used molybdenum fertilizer, applied to the soil at 50-150g per mu, spraying concentration 0.01%-0.1%, seed soaking concentration 0.05%-0.1%, seed dressing 2-5g per kilogram of seeds.

What is Medium elements fertilizer and its application?

• Medium elements are nutrients required during crop growth after nitrogen, phosphorus, and potassium but higher than trace elements. They account for 0.1%-0.5% of the dry weight of the crop and usually refer to the three elements calcium, magnesium, and sulfur.
• Calcium is an important element that forms the cell wall, and most of the calcium in plants is stored in the cell wall. When crops are deficient in calcium, cell walls cannot form, cells cannot divide normally, and the growing points will become necrotic. Therefore, calcium deficiency symptoms often appear first on the top leaves.
• Calcium deficiency is often caused by drastic changes in temperature and moisture conditions, rather than a simple nutrient supply problem. Attention should be paid to the control of environmental conditions during the cultivation process, and at the same time, calcium and sulfur fertilizers are used: sulfur-containing fertilizers include gypsum, sulfur, magnesium sulfate, Ammonium sulfate, potassium sulfate, superphosphate, etc.
• Cereals and leguminous crops will suffer from sulfur deficiency when the available sulfur in the soil is less than 12 ppm. Crops sensitive to sulfur include cruciferous crops, leguminous crops, onions, garlic, leeks, etc. The dosage of sulfur fertilizer per hectare is 150-300 catties of gypsum and 30 kg of sulfur.

4 things to note when mixing trace elements and compound fertilizers

1. Mixing ratio: It is very important to correctly grasp the mixing ratio of trace element fertilizers and compound fertilizers to meet the needs of different nutritional elements for plant growth. Generally speaking, the amount of trace element fertilizer used is generally 5%-10% of compound fertilizer. If mixed in the wrong proportions, plants may suffer from a lack or excess of nutrients.
2. Mixing time: The mixing time is also an issue that needs attention. It is generally recommended to apply compound fertilizer first and then spray trace element fertilizer when mixing. This is because compound fertilizer can meet the main nutrients needed for plant growth. After the plant absorbs enough main nutrients, adding trace element fertilizer can better promote plant growth and development.
3. Mixed use: You also need to pay attention to the mixing method. It is recommended to dissolve trace element fertilizers and compound fertilizers separately before mixing. This ensures that the fertilizer content is even and there is less risk of plant uptake being blocked and causing damage to the plants.
4. The risk of mixing: You need to be careful when mixing fertilizers, otherwise you may have some adverse effects on your plants. If the mixing ratio is improper, it may cause plants to lack or overtake trace elements; excessive fertilization when mixing may lead to plant diapause, wilting, lodging and other poor drought resistance phenomena; in addition, when mixing fertilizers, you need to pay attention to diseases and Pest control.

Conclusion: Trace/medium elements fertilizer and its application

• Trace element fertilizer refers to fertilizer containing plant trace elements (zinc, boron, copper, manganese, iron, molybdenum, etc.), which can be used as a supplier of nutrients required for plant growth. Compound fertilizer is a comprehensive fertilizer composed of a variety of nutrients mixed in proportion, which can supply the main nutrients needed for plant growth.
• Mixing trace element fertilizers and compound fertilizers can effectively improve fertilizer efficiency, because trace elements can promote plant growth and development, while compound fertilizers provide the main nutrients needed by plants. The combination of the two can promote the overall growth and development of plants.