What are the drawbacks of a fertilizer injection gun? An analysis of its disadvantages

If the fertilizer concentration is too high, a fertilizer injection gun can easily cause fertilizer burn to plants and water loss from the root system, resulting in a situation where the concentration of the soil solution is severely higher than the concentration of the cell sap in the plant's root cells, and the water in the cell sap flows into the soil, thereby causing the plant to wilt or even die from lack of water. However, if used properly, this situation will not occur at all, and there are also the following benefits.

Benefits of a fertilizer injection gun

1. Saves fertilizer: it can improve fertilizer use efficiency, saving 30%-40% of fertilizer compared with furrow application or surface broadcasting.

2. Fast fertilizer effect: the fertilizer is in a water-soluble state and can be quickly absorbed by the fruit tree root system.

3. Saves time and labor with high efficiency: no bending over, no digging, low labor intensity; 10-15 application points per mature tree, completed in just 2-4 minutes, improving efficiency by 10 times compared with furrow application or hole application, and more suitable for densely shaded orchards.

4. Minimal damage to plastic mulch and roots: topdressing can be done without injuring roots or damaging plastic mulch or straw cover.

5. Controls fertilization depth: according to the roots' tendency to grow toward fertilizer, it guides and promotes downward root growth; only with deep roots can there be lush leaves.

6. Controls fertilizer amount: the amount of fertilizer applied can be precisely controlled to balance and supply the nutrients needed by each tree.

7. Helps with root disease and pest control: for fruit trees already infected with root diseases, fungicides can be added to the liquid fertilizer, and combined with topdressing, the pesticide can be applied underground to the roots, which can effectively control the disease while avoiding the rapid spread and transmission of pathogens caused by flooding irrigation.

8. Outstanding effect in increasing yield and improving quality: when used in dry orchards or during dry seasons, the yield increase can reach 15%-20%.

Therefore, with a fertilizer injection gun, it is still necessary to master the relevant techniques and control the amount of fertilizer applied.