1、Potassium Control of Plant Functions: Ecological and Agricultural

Potassium deficiency is most likely the primary reason for the increased NADPH oxidase and NADPH-dependent ROS formation, owing to the generation of ABA. This capacity of K + to counteract ROS formation has been found to be particularly intense in response to ROS formation from salt stress.

2、Imbalance between nitrogen and potassium fertilization influences

However, the reason for differences in symptoms of K deficiency and its effect on leaf photosynthetic characteristics and plant growth under different N fertilization levels remains unknown.

3、Potassium deficiency in plants: effects and signaling cascades

Although K + is one of the most abundant elements of the earth crust, its availability to plants is usually limited leading to severe reduction in plant growth and yield. In plants, K + shortage induces several responses at different levels: morphological, physiological, biochemical, and molecular.

4、The Science Behind Potassium and Frost Protection in Plants

One crucial yet often underestimated strategy for fall prep is boosting potassium levels in the soil. This mineral plays a vital role in strengthening plants against frost damage, a leading cause of winter losses for lawns, ornamentals, shrubs, and crops alike.

5、Potassium deficiency symptoms in plants

Plants suffering from potassium shortages grow slowly and develop a weak root system. The stems are also underdeveloped and tend to lodge, while the seeds and fruits are usually undersized, thin and puckered.

Potassium Deficiency and Hormone Signalling in Plants

In view of this, the present review highlights the role of hormonal signalling in regulating K + deficiency-induced responses in plants. We integrate shreds of evidence of how these K + -hormone signalling crosstalk modulate root-system architecture, K⁺ uptake and stress resilience.

Potassium in plant physiological adaptation to abiotic stresses

Potassium ion (K +) is the most abundant cation required for plant growth and survival. K + -transport and -signaling play crucial roles in plant abiotic stress responses. K + controls multiple physiological processes, such as stomatal regulation and osmoprotection.

Potassium Deficiency in Ornamental Plants: Symptoms and Treatment

Potassium Deficiency Effects Lower yields and reduced ornamental quality – flowers may be smaller, fewer, and less uniform, reducing marketability and economic return. Reduced resilience – potassium plays a central role in osmoregulation and overall plant strength, so deficient plants are far less resilient under stress. They become more vulnerable to drought, cold, and salinity, as their ...

Potassium in plants: Growth regulation, signaling, and

Potassium provides assistance in plants against abiotic stress conditions in the environment. With this background, the present paper reviews the physiological functions of K in plants like stomatal regulation, photosynthesis and water uptake.

Potassium deficiency in plants: Effects and signaling cascades

In plants, K+ shortage induces several responses at different levels: morphological, physiological, biochemical, and molecular. Activation of signaling cascades including reactive oxygen...

Factors Contributing to Potassium Deficiency:

Potassium is an essential nutrient for plant growth, playing a critical role in development, physiological processes, and stress resistance. during winter, plants often experience potassium deficiencies due to low temperatures, short daylight hours, and slow soil water evaporation, which reduce their demand for potassium. The following factors exacerbate this issue:

1. Soil Conditions:

   • Low temperatures suppress microbial activity, reducing the solubility of potassium in the soil.
   • Slow decomposition of organic matter locks potassium into soil particles, making it less accessible to plants.

2. Slow Plant Growth:

   • Reduced metabolic activity in winter lowers potassium requirements, but even sufficient soil potassium may fail to meet uptake needs due to weakened demand.

3. Poor Root Development:

   • Cold weather inhibits root growth, weakening the roots’ ability to absorb potassium, leading to intracellular deficiencies.

4. Insufficient Irrigation:

   • Reduced irrigation frequency due to slow soil moisture evaporation disrupts water transport, impairing potassium uptake and distribution within plants.

5. Improper Fertilization:

   • Overemphasis on nitrogen and phosphorus fertilizers, or excessive application rates, disrupts nutrient balance and hinders potassium absorption.

6. Unfavorable Soil pH:

   • Extreme soil acidity or alkalinity (pH imbalance) reduces potassium availability to plants.

7. Pest and Disease Impact:

   • Root-damaging pathogens reduce potassium uptake, while foliage-damaging pests decrease photosynthesis, limiting potassium assimilation.

Solutions to Address Winter Potassium Deficiency:

1. Improve Soil Health:

   • Enhance soil structure and potassium availability through organic amendments (e.g., compost) and mineral supplements.

2. Balanced Fertilization:

   • Tailor fertilizer ratios (N-P-K) to seasonal needs, ensuring adequate potassium without excesses of other elements.

3. Optimize Irrigation:

   • Maintain consistent soil moisture via regular irrigation to support potassium transport into plants.

4. Moderate Fertilizer Use:

   • Avoid over-application of nitrogen/phosphorus fertilizers, which can create nutrient imbalances.

5. Adjust Soil pH:

   • Lime or sulfur applications can regulate soil pH to optimize potassium uptake.

6. Integrated Pest Management:

   • Protect roots and foliage from diseases/pests to prevent disruptions in nutrient absorption.

Winter potassium deficiency arises from interconnected soil, climatic, and management factors. A holistic approach—combining soil amendments, balanced fertilization, irrigation optimization, pH control, and pest prevention—is essential to mitigate deficiencies and ensure healthy plant growth during cold seasons.