Detailed Explanation of the Differences Between Types of Water-Flush Fertilizers and Their Correct Application Methods
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I heard there are many types of water-flush fertilizers. What are the differences between water-flush fertilizers and how should they be used?Water-flush fertilizers: With the widespread promotion and application of protected greenhouse vegetables and fruit trees, there are many types of water-flush fertilizers on the market, and farmers should distinguish the types and apply them reasonably.
There are many types of water-flush fertilizers. Based on chemical properties and nutrient composition, they can be divided into three types: 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 biological 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, and the other is organic-inorganic liquid compound water-flush fertilizers scientifically formulated from organic and inorganic materials. These new compound preparation water-flush fertilizers need only one application to meet the crop's demand for multiple elements.
To use water-flush fertilizers scientifically, the following points must be noted: 1. Correctly choose the fertilizer variety. Water-flush fertilization 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 require more nitrogen, urea or ammonium nitrate can be chosen. 2. The application method must be appropriate. Before applying water-flush fertilizer, the solid fertilizer should first be dissolved by adding water to make a mother liquor, 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 distributed evenly in the field. 3. 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 seedlings. After flushing application of fertilizer and water, combining with timely intertillage and soil loosening gives better results. 4. 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 caking occurs, it can still be used and does not affect fertilizer efficacy.
Get more water-soluble fertilizer application techniques
Get more fertilizer application techniques