Analysis of advantages and disadvantages of flushing fertilizer with water
In vegetable cultivation, a quantitative fertilizer is dissolved in water and applied to the vegetable field along with the water when watering. This fertilization method has been widely used by vegetable farmers, melon farmers and fruit farmers. This fertilization method has many advantages , But there are also shortcomings, remind vegetable farmers, melon farmers, fruit farmers friends to pay attention.
advantage
1. Labor saving, time saving, labor saving, uniform, convenient and safe. 2. For vegetables grown on ridges, concentrated fertilization and topdressing alternately will cause little damage to the root system. After fertilization, the fertilizer can directly reach the root system with water, allowing the root system to absorb it quickly. 3. It can avoid ditching or digging holes and other methods of topdressing to damage the root system, avoid local concentrated fertilization and cause root burning, and avoid the phenomenon of sprinkling chemical fertilizers damaging young leaves and stems. 4. It can solve the problem of difficult top dressing in many cultivation modes, such as small arched sheds, vegetables with a higher density of border-planted vegetables, and vegetables grown with plastic mulching.
Disadvantage
1. The water solution directly soaks the roots of the plants. If the water accumulates near the roots of the plants or the solution concentration is too high, the roots of the plants will be damaged. 2. For fertilizers with slow solubility, such as compound fertilizers, diammonium phosphate, etc., dissolve them in advance to avoid fresh foaming and residual fertilizer residues after water seepage, reducing fertilizer utilization. 3. For some volatile fertilizers, such as urea, ammonium bicarbonate, ammonium sulfate, potassium sulfate, etc., ventilate in time after application, otherwise the ammonia concentration is too high and it is easy to damage the plants. In short, do not flush fertilizer continuously, and the concentration should not be too large, and the amount of watering should not be too large and the field water will not damage the root system.
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