1、Soil potassium regulation by changes in potassium balance and iron and

Southern China’s paddy soils are poor in potassium (K) and rich in iron (Fe) and aluminum (Al) oxides, both of which are affected by fertilizer application. However, the response of soil K budget to long-term K fertilization and Fe and Al oxides remains unclear, especially in the subsurface horizons in different soil types.

2、EFFECTIVENESS OF SPRAYING NANO

aitha district in the Al-Muthanna Governorate to study iron and potassium nano-spraying on growth and yield of faba bean. In accordance with the split-plot design, the experiment was applied; the spraying nano-iron concentrations were placed in the main plots (0, 100, 200 mg F.

3、Application of different foliar iron fertilizers for improving the

The effects of various iron fertilizers on the yield, quality, and iron content of potato tubers, their correlations to chlorophyll levels, and the characteristics of photosynthetic fluorescence were studied.

4、Types Of Fertilizers: Everything You Need To Know

Discover the different types of fertilizers and how to choose the right one for your plants. Our comprehensive guide covers everything you need to know.

5、Iron In Fertilizers

Although not one of the main three components -- nitrogen, phosphorous and potassium -- of most fertilizers, iron is one of the trace nutrients necessary for healthy plants.

Compare Iron vs Potassium

Iron metal alloy steel is used in the application of civil engineering and manufacturing. Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties. Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.

Types Of Fertilizers: Different Compositions, Origins, And Forms

Fertilizers supply plants with the three essential nutrients they need to grow: nitrogen (N), phosphorus (P), and potassium (K), as well as other needed micronutrients. The key parameters of different types of fertilizers used in agriculture are these nutrients and how they are obtained.

Interaction between different fertilizers

There is a "mutual growth" relationship between fertilizers, and there is also a "mutual restraint" contradiction.

A guide to understanding fertilizers

Fertilizers come in many different forms, from naturally occurring in the soil to commercial or organic products, liquid and dry, and in many different formulations. Here's how to choose what your plants need.

Effects of Different Potassium (K) Fertilizer Rates on Yield Formation

Present study was conducted in three different sites in South China in late season in 2019 with the objective to study the effects of different applied amounts of K fertilizer on yield formation and lodging of rice.

Iron and potassium fertilizers are two essential plant nutrients that play critical roles in plant growth. Iron fertilizers primarily promote plant development and enhance stress resistance, while potassium fertilizers focus on regulating water balance, boosting photosynthesis, and facilitating nutrient transport.

1. Composition and Functions

• Iron Fertilizers: Contain iron ions (Fe²⁺) and compounds like ferrous sulfate or ferric chloride. Their key functions include:

  • Stimulating chlorophyll synthesis to improve photosynthetic efficiency.
  • Enhancing root development and nutrient absorption.
  • Strengthening disease resistance and adaptability to adverse conditions.

• Potassium Fertilizers: Comprise potassium ions (K⁺) and compounds such as potassium sulfate or potassium chloride. Their primary roles are:

  • Balancing water levels to prevent dehydration or overhydration.
  • Promoting root growth and nutrient uptake.
  • Increasing photosynthetic efficiency and nutrient accumulation/transport.

2. Application Methods and Precautions

• Iron Fertilizers: Typically applied as ferrous sulfate via irrigation or foliar spraying. Avoid overuse to prevent soil acidification and phytotoxicity.
• Potassium Fertilizers: Applied as base or topdressing fertilizers. Excessive use may inhibit growth or reduce yields, so dosage and timing are critical.

3. Timing and Techniques

• Iron Fertilizers: Applied during early growth, flowering, or fruit development via drip irrigation, spraying, or soaking. Timing varies by crop and stage.
• Potassium Fertilizers: Used similarly but emphasized during growth spurts, flowering, or fruiting. Methods include basal application, topdressing, or drip irrigation.

4. Dosage and Concentration

• Iron Fertilizers: For most crops, 5–10 kg of ferrous sulfate per mu (0.067 hectare) is sufficient. Excessive concentrations risk toxicity.
• Potassium Fertilizers: Generally, 20–50 kg of potassium sulfate per mu meets crop needs. Overapplication reduces uptake of other nutrients.

5. Comparative Effects

While both fertilizers are vital, their roles differ:

• Iron drives growth and stress resilience.
• Potassium optimizes water balance and photosynthesis. Selecting the appropriate type and application depends on crop species and growth stages.

Iron and potassium fertilizers are indispensable for healthy plant growth. Proper use enhances crop quality, yield, and agricultural sustainability. By understanding their distinct functions and applying them scientifically, farmers can maximize productivity while minimizing environmental impact.