Application methods of controlled-release fertilizers and fertilizer use efficiency
Release Date:
2019-11-08
When it comes to applying controlled-release fertilizers, many people might think that simply scattering them directly onto the crops would suffice. However, this is actually an improper application method. While it doesn’t completely negate the fertilizer’s effectiveness, it does prevent you from fully realizing its potential. So, how should controlled-release fertilizers be applied? Below, a manufacturer of controlled-release fertilizers provides a detailed explanation.
Application methods of controlled-release fertilizers and fertilizer use efficiency
When it comes to applying controlled-release fertilizers, many people might think that simply scattering them directly onto the crops would suffice. However, this is actually an improper application method. It’s not that such practice has no effect on the crops; rather, it fails to maximize the fertilizer’s benefits. So, how should controlled-release fertilizers be applied? Next… Controlled-release fertilizer The manufacturer will provide a detailed introduction for us.
There are many ways to apply controlled-release fertilizers. The simplest method is to scatter them directly on the soil surface, with a fertilizer utilization rate of 60%–70%. In professional horticultural markets, this is essentially how controlled-release fertilizers are used; most ornamental plants are indeed grown with such fertilizers. Typically, they command a market price of 20,000 to 30,000 yuan per ton. If you grow flowers at home, simply sprinkle the fertilizer over the surface of the pot.
The second method, like with conventional fertilizers, involves applying the fertilizer at a distance from the roots and covering it with soil, resulting in a nutrient-use efficiency of 70%–80%. The most ideal application technique for controlled-release fertilizers is to ensure complete contact with the roots—only true controlled-release products can achieve this; otherwise, plants are prone to fertilizer injury. Such fertilizers must have an extremely low initial release rate, ideally below 5%, while delivering a nutrient-use efficiency of around 85%. Typically, they are applied directly alongside the seeds, with nutrient release spanning the entire growth period from sowing to harvest. For example, in Japan, rice growers apply controlled-release fertilizer together with the rice seeds into the field, allowing it to remain active throughout the crop cycle until harvest.
So if you’ve planted a pot or two of flowers at home for enjoyment, and you have the time, you might want to try the second method. This approach offers higher fertilizer efficiency, which in turn promotes healthier plant growth.
Blue-film controlled-release fertilizer http://www.sdndfy.com
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