Water soluble fertilizer is a multi-element compound fertilizer that can be completely dissolved in water. It has the characteristics of high efficiency, quick effect, and environmental protection, and is widely used in modern agricultural irrigation systems (such as drip irrigation and sprinkler irrigation) and foliar spraying. The following is a detailed analysis of water-soluble fertilizers:
1、 Core Definition
Water soluble fertilizer (WSF) refers to a soluble solid or liquid fertilizer made by scientifically proportioning nitrogen, phosphorus, potassium, and trace elements (such as calcium, magnesium, iron, zinc, etc.) through chemical synthesis or physical mixing. It has high solubility and can be quickly absorbed and utilized by plants.
2、 Main types
Classified by elements:
Massive element water-soluble fertilizer: containing nitrogen (N), phosphorus (P), potassium (K), with flexible ratios (such as 20-20-20, 15-30-15).
Water soluble fertilizers containing trace elements: supplement calcium, magnesium, boron, zinc, etc. to prevent nutrient deficiency.
Amino acid/humic acid water-soluble fertilizer: adding organic components to improve soil structure and enhance plant stress resistance.
Classified by Form:
Solid water-soluble fertilizer: powder or granular, easy to store and transport.
Liquid water-soluble fertilizer: concentrated or clear liquid type, directly diluted for use.
3、 Core advantages
Efficient absorption:
After dissolution, it forms an ionic state that can be directly absorbed through plant roots or leaf stomata, with a utilization rate 30% -50% higher than traditional fertilizers.
Precision fertilization:
The formula can be adjusted according to the growth stage of crops (such as high nitrogen during the growth period and high phosphorus and potassium during the flowering period) to avoid nutrient waste.
Environmental protection and water conservation:
Used in conjunction with drip irrigation systems to reduce fertilizer loss and groundwater pollution, in line with the trend of water-saving agriculture.
Easy to operate:
Dissolve quickly, without precipitation, suitable for automated fertilization equipment.
4、 Applicable scenarios
Facility agriculture: Closed environments such as greenhouses and greenhouses require precise control of nutrients.
Soilless cultivation: such as hydroponics and substrate cultivation, relying on nutrient solution supply.
Economic crops: high-value crops such as vegetables, fruits, flowers, etc., pursuing quality and yield.
Nutrient deficiency remedy: Quickly correct crop nutrient deficiency symptoms (such as yellowing leaves and fruit cracking).
5、 Usage method
Dilution ratio:
Solid fertilizer: Mix water in a ratio of 1:500-1:1000 (refer to product instructions for details).
Liquid fertilizer: directly diluted or injected into the irrigation system through a fertilizer pump.
Fertilization frequency:
Drip irrigation: 1-2 times a week, a small amount multiple times.
Foliar spraying: once every 10-15 days during the growth period, avoiding high temperature periods.
Notes:
Avoid mixing with alkaline pesticides to prevent sedimentation.
Store in a cool and dry place to prevent clumping.
6、 Comparison with traditional fertilizers
Characteristic water-soluble fertilizer, traditional compound fertilizer
Solubility: completely dissolved, no residual parts dissolved, prone to residue
Rapid absorption rate (1-3 days effective) Slow absorption rate (7-10 days)
Usage: Drip irrigation, sprinkler irrigation, foliar spraying, foliar spraying, buried application
Higher cost (but with less usage and lower overall cost) and lower
Environmentally friendly pollution is minimal, water-saving is prone to loss, and may contaminate groundwater
7、 Purchase suggestions
Check the execution standards: Choose products that meet the national water-soluble fertilizer standards (such as NY 1107-2010).
Check nutrient content: Clearly label the proportion of nitrogen, phosphorus, potassium, and trace elements.
Choose brand manufacturers: Priority should be given to enterprises with production qualifications and good reputation.
On demand purchase: Select specialized formulas based on crop type and growth stage (if tree or vegetable type).
8、 Typical application cases
Strawberry planting: Spray high phosphorus and potassium water-soluble fertilizer during the flowering period to promote flowering and fruit setting, and reduce abnormal fruits.
Leafy vegetables: High nitrogen water-soluble fertilizers are used during the growth period, resulting in thick leaves and a bright green color.
Greenhouse tomatoes: Continuous supply of balanced water-soluble fertilizer through drip irrigation system to extend harvesting period.
Summary: Water soluble fertilizer is one of the core tools for efficient planting in modern agriculture, especially suitable for growers who pursue precise management and high-quality output. Reasonable use can significantly improve yield and quality, while reducing environmental burden.
