Humic Acid Manufacturer: How to Use Slow-Release and Controlled-Release Fertilizers Effectively
Release Date:
2019-11-18
Many people are already familiar with the advantages of controlled‑release fertilizers. While they deliver excellent results, it’s essential to use them correctly—tailoring application to the specific needs of the crop—to fully harness their unique benefits; otherwise, your efforts may be in vain. To help you apply these fertilizers effectively, Nongda Fertilizer, a leading producer of humic acid products, shares some practical guidance below. Let’s take a look.
Humic Acid Manufacturer: How to Use Slow-Release and Controlled-Release Fertilizers Properly
Many people are already familiar with the advantages of controlled‑release fertilizers. Although they deliver excellent results, it’s essential to use them correctly and tailor their application to the specific needs of the crops in order to fully harness their unique benefits; otherwise, your efforts may be in vain. As for how to apply controlled‑release fertilizers appropriately, below… Humic acid manufacturer Nongda Fertilizer Industry is here to introduce itself—let’s take a look.
Let’s begin by discussing the benefits of slow‑release and controlled‑release fertilizers. These products regulate the rate and extent of nutrient release according to crop requirements, ensuring that nutrient supply remains aligned with the plants’ needs. First, under equal application rates, they can boost yields by 10% to 30%. Second, they reduce the frequency of topdressing. Third, they help mitigate soil degradation and lower the incidence of root diseases in crops. So, how should we apply them across different crop types?
For crops such as rice and wheat, which have dense, evenly distributed root systems, apply a uniform surface application of controlled-release fertilizer at the recommended rate before transplanting or sowing, followed by tillage prior to planting. For wheat, use 40–50 kg per mu as a base fertilizer, and topdress with 5–7 kg of urea during the green-up stage. For rice, apply 40–50 kg per mu as a base fertilizer; 5–7 days after transplanting, apply 10–15 kg of urea.
For row‑spaced crops such as corn and cotton, apply a single basal application of controlled‑release fertilizer in furrows alongside the seeds, ensuring proper seed–fertilizer separation. Due to differences in soil and climate between northern and southern regions, in the north apply 30–40 kg of controlled‑release fertilizer per mu at planting; in the south, apply 30–40 kg per mu at planting, followed by a topdressing of 10–15 kg of urea during the flowering and boll‑setting stage.
For crops such as peanuts and soybeans that can fix nitrogen themselves, it is best to apply a slow-release fertilizer with low nitrogen and high phosphorus and potassium. This fertilizer should be applied as a base dressing in furrows, with application rates varying according to yield expectations and soil fertility; typically, 20 to 40 kilograms per mu are recommended. During the pod‑setting stage, soybeans can be foliar‑sprayed with a 0.2% to 0.3% solution of monopotassium phosphate and a 1% urea solution to provide supplemental phosphorus and boost nitrogen uptake. For potatoes or sweet potatoes, a potassium sulfate‑based slow-release fertilizer is suitable, at a rate of 75 to 90 kilograms per mu, and should be applied in concentrated bands within the furrows.
Here, we have categorized these crops according to their distinct characteristics, primarily including rice, wheat, corn, cotton, peanuts, and soybeans. Because each crop has unique traits, the application of controlled‑release fertilizers also varies; therefore, different application methods are required when using them.
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