Detailed Guide to Common Types of Water-Flush Fertilizers and Their Correct Use
What types of water-flush fertilizers are there and how should they be used? Please give an introduction. There are many varieties and types of water-flush fertilizers, which can be divided into three kinds based on chemical properties and nutrient composition: first, inorganic types such as urea, monopotassium phosphate, high-calcium type, high-potassium type, etc.; second, organic types, such as amino acid type, humic acid marine organism type, etc.; third...
What types of water-flush fertilizers are there and how should they be used? Please give an introduction.
There are many varieties and types of water-flush fertilizers, which can be divided into three kinds based on chemical properties and nutrient composition: first, inorganic types such as urea, monopotassium phosphate, high-calcium type, high-potassium type, etc.; second, organic types, such as amino acid type, humic acid marine organism type, etc.; third, microbial types, such as yeast type, etc. In recent years, compound water-flush fertilizer varieties have developed rapidly and can basically be divided into two categories: one is compound preparations produced by scientifically processing and blending organic, inorganic, biological and other raw materials together; the other is organic-inorganic liquid compound water-flush fertilizers made by scientifically mixing organic and inorganic materials. These new compound preparation water-flush fertilizers only need one application to meet the crop's demand for multiple elements.
To use water-flush fertilizers scientifically, the following points must be noted: First, correctly select the fertilizer variety. Water-flush fertilizer is by no means as simple as "fertilizer flushed with water"; it must be selected according to different crops. For example, when planting vegetable crops that need more nitrogen, urea or ammonium nitrate can be selected. Second, the application method must be appropriate. Before applying water-flush fertilizer, the solid fertilizer should first be dissolved by adding water to make a stock solution, and then diluted with water for flushing application. For some shallow-rooted vegetables and other crops, or when soil application is inconvenient, the prepared fertilizer can be applied with irrigation water. During the flushing application, the water volume should be well controlled to ensure nutrients are evenly distributed in the field. Third, the fertilizer dosage and application concentration should be reasonable. Excessive dosage or too high concentration can easily produce toxic and harmful gases such as ammonia, nitrogen oxides and hydrogen sulfide, causing crop poisoning. Never directly scatter solid water-flush fertilizer in the field and then irrigate, as this instead causes uneven fertilizer distribution and may even burn the seedlings. After flushing with fertilizer and water, timely intertillage and soil loosening will give better results. Fourth, compound water-flush fertilizers containing microbial preparations should be stored in a cool place, avoiding direct sunlight and excessive damp heat, and must not be mixed with fungicides. If caked, they can still be used, and fertilizer efficiency will not be affected.
Get more water-soluble fertilizer application techniques
Get more fertilizer application techniques