Mainly N, P, K (nitrogen, phosphorus, potassium)

The nutrient solution is biologically processed using environmental bioecological biotechnology and mycorrhizal biomass principles. A new type of nutrient solution synthesized by fermentation, chemical chelation, physical activation and other processes. Nutrient solution is the key to soilless cultivation, and different crops require different nutrient solution formulas.

There are many formulas published in the world, but they are mostly the same, because the original formula was derived from the analysis of the chemical composition of soil leachate. The biggest difference in nutrient solution formulas is the ratio of nitrogen to potassium.

Nutrient solution plays an important role in the normal growth and development of flowers. When preparing nutrient solution, the formula and dosage should be determined according to the varieties of flowers being cultivated, different growth periods, and different regions. Strive to achieve comprehensive and balanced nutrition, which is beneficial to plant absorption and utilization. Several commonly used nutrient solution formulas?

1. 10 grams of sodium nitrate, 70 grams of superphosphate, 25 grams of ammonium sulfate, 35 grams of potassium sulfate, and 40 grams of magnesium sulfate. ?

Usage: When preparing the nutrient solution using the above formula, first mix it with water, and then add the mixed trace elements at a ratio of 3 grams per 100 liters of water before use (trace elements are usually Mix 100 grams of ferrous sulfate, 14 grams of boric acid powder, and 10 grams of manganese sulfate into powder and set aside). ?

2. Potassium nitrate 0.7 g/L, boric acid 0.0006 g/L, calcium nitrate 0.7 g/L, manganese sulfate 0.0006 g/L, superphosphate 0.8 g/L, zinc sulfate 0.0006 g/ Liter, magnesium sulfate 0.28 g/L, copper sulfate 0.0006 g/L, iron sulfate 0.12 g/L, ammonium molybdate 0.0006 g/L. ?

Usage: When using, mix various elements together and add 1 liter of water to form a nutrient solution. When preparing the above nutrient solution, the types and amounts of elements can be increased or decreased according to the different requirements of different flowers. ?

3. 5 grams of urea, 3 grams of potassium dihydrogen phosphate, 1 gram of calcium sulfate, 0.5 grams of magnesium sulfate, 0.001 grams of zinc sulfate, 0.003 grams of iron sulfate, 0.001 grams of copper sulfate, 0.003 grams of manganese sulfate , 0.002g of boric acid powder; add 10 liters of water and dissolve to make a nutrient solution. ?

Usage: Water potted flowers once a week for a long time, and the dosage each time can be determined according to the size of the plant. For example, if the inner diameter of the flowerpot is 20 cm, the amount of positive-positive flowers should be watered about 100 ml each time, while the amount of negative-positive flowers should be reduced. In winter or dormant period, water once every half month or one month. Normally, tap water is used for hydration.

Extended information:

When preparing nutrient solutions, the purity and cost of chemical reagents must be taken into consideration. Chemical fertilizers and plant growth regulators can be used in production to reduce costs.

The fertilizers or raw materials used to prepare soilless culture nutrient solutions should be mainly in chemical form, have good solubility in water, and can be effectively absorbed and utilized by crops. Organic fertilizers that cannot be directly absorbed by crops are not suitable as crop nutrient solution fertilizers.

1. Nutrient solution is the main source of mineral nutrients and water required for soilless cultivation crops. Its composition should contain complete components needed by crops, such as nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. and other large and medium elements and trace elements such as iron, manganese, boron, zinc, and copper. The total concentration of the nutrient solution should not exceed 0.4. For most plants, the nutrient concentration they need should be around 0.2.

2. The nutrient solution prepared as foliar fertilizer must have good solubility in water and can be effectively absorbed and utilized by crops. Organic fertilizers that cannot be directly absorbed by crops are not suitable as nutrient solution fertilizers.

3. Determine the proportion of each element in the nutrient solution according to the type of crop and cultivation conditions to give full play to the effectiveness of the elements and ensure balanced absorption by the crop. At the same time, the impact of different stages of crop growth must also be considered. Different ratios of nutrient requirements.

4. Water quality is the key to the preparation of soilless culture nutrient solution. The water source used should not contain harmful substances and be free from pollution. When using it, avoid using sodium ions greater than 50 microliters/liter and chloride ions. Water greater than 70 microliters/liter. Water quality is too hard and should be treated in advance.

Reference: Baidu Encyclopedia - Nutrient Solution