1、Recent advances in the chemistry of nitrogen, phosphorus and potassium

The intense cultivation of crops has resulted in the depletion of available nutrients from soil, thereby demanding the application of excess nutrients to soil to improve yield. Thus, mineral fertilizer discovery and application have, in many ways, contributed greatly to meeting global food demands.

2、Effects of Combined Application of Organic and Inorganic Fertilizers on

Reducing the application of chemical fertilizers and substituting them with organic fertilizers can improve the soil quality of saline–alkali lands.

3、Fertilizer Interactions in Alkaline Soils

Plants grow until they are stopped by the lack of something they need: light, water, oxygen, carbon dioxide, or essential nutrients. Nitrate is water soluble and moves freely with soil water. How do you convert these? Parts of what? 10% of Nitrogen is leached below rooting depth before plant can use it.

4、What fertilizers should not be mixed?

(5) Fertilizer should not be mixed with bacterial fertilizer such as rhizobia fertilizer.Because the chemical fertilizer has strong corrosive, volatile and water absorption, if applied together with bacterial fertilizer, it will kill or inhibit the living bacteria, making the fertilizer ineffective.

What Should You Not Mix Fertilizer With: A Comprehensive Guide to Safe

For example, ammonium-based fertilizers should not be mixed with alkaline substances, as this can cause the ammonia to vaporize and reduce the fertilizer’s potency.

Ammonium nitrogen fertilizer should not be mixed with alkaline

Because ammonia gas will be generated after mixed application, which will reduce the effect of fertilizer. Commonly used ammonium nitrogen fertilizers include ammonium bicarbonate, ammonium sulfate, etc., and alkaline fertilizers include plant ash, lime, etc.

Which Fertilizers Should Not Be Mixed?

Mixing strongly acidic and strongly alkaline fertilizers causes a rapid increase in pH. Combining an acidifying source, such as Ammonium Sulfate or Urea, with an alkaline source like potassium hydroxide or certain limestone-based products drives the conversion of ammonium to volatile ammonia gas.

Which fertilizers should not be mixed?

The farmyard fertilizer can not be mixed with alkali ash, lime nitrogen, lime, calcium magnesium phosphate fertilizer and other alkaline fertilizers. Because the main component of human and animal urine is nitrogen, if it is mixed with a strong alkaline fertilizer, it will neutralize and fail.

Essential Tips for Mixing Fertilizers in Your Garden

For maximum benefit, part of the fertilizers should be applied in the fall, while the rest should be reserved for spring or summer. During this period, potassium and phosphorus fertilizers are relevant — they will help prepare the soil for the new season.

The Ultimate Guide to Fertilizer Compatibility: What Fertilizers Should

Mixing incompatible fertilizers can lead to nutrient lockout, crop damage, and costly equipment failure, sabotaging your efforts before they even reach the field. The key to avoiding these issues lies in understanding fertilizer compatibility.

Mixing nitrogen fertilizers with alkaline soils leads to nitrogen loss, reduces soil fertility, and impacts crop growth. in agricultural production, the mixing of nitrogen fertilizers with alkaline soils should be avoided.

Nitrogen is an essential nutrient for plant growth, promoting development and increasing yields. combining nitrogen fertilizers with alkaline soils causes nitrogen loss and diminishes soil fertility.

Firstly, nitrogen in fertilizers primarily exists as ammonium ions (NH₄⁺), which are weak acid salts soluble in water. In alkaline environments, ammonium ions convert to ammonia gas (NH₃) and volatilize, resulting in nitrogen loss. Additionally, ammonium ions form precipitates with cations like calcium (Ca²⁺) and magnesium (Mg²⁺) in the soil, further reducing the availability of nitrogen.

Secondly, substances such as carbonates and sulfates in alkaline soils react with nitrogen from fertilizers, creating poorly soluble compounds that are harder for plants to absorb. Meanwhile, organic matter in alkaline soils reacts with nitrogen to form insoluble organic complexes, decreasing nitrogen availability.

microbial activity in alkaline soils is lower, weakening their capacity to decompose nitrogen and reducing nitrogen utilization efficiency. Higher soil pH levels in alkaline environments also hinder root growth, indirectly affecting nitrogen uptake by plants.

To enhance soil fertility and meet crop nutritional needs, mixing nitrogen fertilizers with alkaline soils should be avoided. In practice, controlling soil pH through adjusted irrigation sources and rational fertilization can minimize nitrogen loss and improve fertilizer efficiency.

Besides nitrogen fertilizers, other nutrients like phosphorus and potassium fertilizers also perform poorly when mixed with alkaline soils. Their active ingredients form insoluble compounds under alkaline conditions, reducing effectiveness. Organic matter in these soils further exacerbates nutrient binding, creating more insoluble substances.

Micronutrient fertilizers such as iron (Fe) and zinc (Zn) are equally unsuitable for alkaline soils. These elements form precipitates under alkaline conditions, reducing availability. Soil organic matter also combines with micronutrients to produce insoluble compounds.

to prevent nitrogen loss and soil fertility decline caused by mixing nitrogen fertilizers with alkaline soils, agricultural practices should employ multiple strategies to regulate soil pH and nutrient balance. This includes applying organic fertilizers rationally, adjusting irrigation water quality, and controlling chemical fertilizer doses. Implementing these measures effectively boosts soil health, promoting crop growth and yield improvement.