Potassium dihydrogen phosphate spray concentration

Potassium dihydrogen phosphate is used as a high-efficiency phosphorus-potassium compound fertilizer in agriculture, which is widely used in almost all types of crops, such as cash crops, grain, melons, fruits, vegetables and so on. So, what is the spraying concentration of potassium dihydrogen phosphate?

Spraying concentration of potassium dihydrogen phosphate

Due to the different characteristics of fertilizer requirements of different crops in the growing period, seed soaking, spraying and root irrigation are introduced here.

1. Soaking seeds

When potassium dihydrogen phosphate is used to soak and mix seeds of crops, it can promote the emergence of crops, the sturdiness of seedlings, the expansion of roots, etc., the concentration ratio is 1: 500, that is, 100 grams of potassium dihydrogen phosphate is mixed with 50 kg of water, and the amount of seeds soaked is 2 cm above the water surface.

two。 Foliar spraying

Foliar spraying is the most frequently used way of potassium dihydrogen phosphate, which can expand the fruit and increase sweetness. the common concentrations are 1purl 800 and 1purl 1000, that is, 100g potassium dihydrogen phosphate mixed with water 80 kg or 100 kg, and the water consumption per mu is about 40 kg.

3. Irrigate root

Potassium dihydrogen phosphate is used to irrigate roots, that is, root irrigation, which is most widely used in a large number of element fertilizers, with a concentration ratio of 1: 1000, about 100 kg solution per mu, and 20 grams per litter. These can be used in big fruit trees, corn and other crops.

Matters needing attention in the use of potassium hydrogen

1. Pertinence: it should be applied in combination with crops that need potassium fertilizer, especially in many melon and fruit crops, and should not be used without understanding the current growth period and fertilizer characteristics of crops.

two。 Spraying time: potassium dihydrogen phosphate foliar spraying is recommended in the morning and evening to reduce foliar volatilization and improve absorption and utilization.

3. Warehouse storage: potassium dihydrogen phosphate should be protected from moisture, especially in rainy summer, should be placed in a dry, ventilated and cool place

As the characteristics of each crop are different, people should use appropriate amounts according to their growth habits when applying fertilizer.