1、Revisiting potassium

Soil potassium (K) deficit is extremely challenging for global food security, necessitating optimal K-fertilization strategies to reconcile crop productivity and soil fertility.

2、The Roles and Effects of Potassium Fertilization on Crops

The effects of long-term different fertilizations and deep plough on grain yield, potassium utilization, potassium forms in soil profile and non-exchange potassium release in maize-sorghum rotation system was evaluated to provide the theoretical basis for potassium nutrient management.

3、Effects of potassium fertilization on crops yield, potassium uptake

Potassium fertilization increased K uptake at four sites, whereas yields remained stagnant in K2, K3, and K4 treatments despite increasing K uptake. Continuous K removal decreased soil K supplying capacity.

4、Effects of potassium fertilization on crops yield, potassium uptake

Potassium fertilization increased K uptake at four sites, whereas yields remained stagnant in K2, K3, and K4 treatments despite increasing K uptake. Continuous K removal decreased soil K...

The effects of potassium fertilization on water‐use efficiency in crop

As described for sugar beet, finding the critical period of crop K sensitivity is a decisive step in understanding its impact on water-use efficiency.

Potassium in agriculture

In this review we summarize factors determining the plant availability of soil potassium (K), the role of K in crop yield formation and product quality, and the dependence of crop stress resistance on K nutrition.

Evaluating the effect of potassium fertilization on mineral nutrients

Potassium supplementation significantly enhanced root growth, with fresh weight increases of up to 23% in cotton and 14.3% in pigeon pea under severe water stress. Control treatments exhibited the lowest root length for cotton (5.20 cm) and pigeon pea (4.57 cm).

Effect of Different Long

We established an eight-year experiment comparing the effects of five K fertilization treatments (0, 48, 84, 120 and 156 kg K ha −1) on crop yield, K use efficiency and soil apparent K balance under the maize–wheat rotation system in the North China Plain.

Potassium's Role In Fertilizers: Enhancing Plant Growth And Soil Health

Discover how potassium in fertilizers boosts plant growth, strengthens roots, and improves soil health for sustainable agriculture.

The effects of potassium fertilization on waterâ use efficiency in crop

One key factor in the expected re-sponse of these two crops to potassium fertilization is the fre-quency and severity of droughts during the growth season. In the case of sugar beet, there is no fixed value for the maxi-mum unit of water productivity (TE).

Potassium fertilization plays a crucial role in crop growth and yield. It not only enhances plant stress resistance but also strengthens photosynthesis, promotes root development, and improves quality. Below is a detailed explanation of the effects of potassium fertilization:

I. Enhancing Plant Stress Resistance

1. Improving Cold Resistance: Potassium fertilizer increases sugar content within plants and elevates cell sap concentration, thereby boosting freezing resistance. In cold environments, it helps maintain normal metabolic activities and reduces frost damage.
2. Enhancing Drought Resistance: Potassium stabilizes cell membranes, improves water retention, and reduces water loss. It also promotes root development, enhancing adaptation to arid conditions.
3. Strengthening Saline-Alkaline Tolerance: Potassium improves plants’ ability to absorb soil nutrients under saline conditions, reducing internal salt concentrations. Additionally, it stimulates deeper root growth, enhancing resilience to saline-alkaline soils.

II. Promoting Photosynthesis

1. Increasing Photosynthetic Rate: Potassium improves leaf stomatal conductance and gas exchange area, thereby accelerating photosynthesis—critical for crop growth and yield.
2. Extending Photosynthetic Duration: Potassium delays leaf senescence, prolonging the photosynthetic period. This increases total photosynthate production, boosting crop yields.
3. Enhancing Photosynthetic Efficiency: Potassium increases chlorophyll content and stability, strengthening pigment function and improving photosynthetic efficiency.

III. Stimulating Root Development

1. Boosting Root Activity: Potassium enhances nutrient uptake capacity and root vigor, essential for crop growth and nutrient absorption.
2. Promoting Root Expansion: Potassium encourages roots to penetrate deeper into the soil, expanding their reach. This improves access to water and nutrients, enhancing stress resistance.
3. Improving Root Quality: Potassium fosters the development of vascular tissues in roots, enhancing their functionality. This optimizes nutrient utilization and increases yields.

IV. Improving Quality

1. Enhancing Fruit Quality: Potassium improves fruit taste and nutritional value, such as increasing sweetness and aroma, thereby elevating overall quality.
2. Boosting Seed Viability: Potassium improves seed germination rates and speed, ensuring efficient crop propagation.
3. Strengthening Stems: Potassium increases stem strength and flexibility, helping crops resist pests, diseases, and mechanical damage.

potassium fertilization profoundly impacts crop growth, yield, and resilience. Rational application of potassium fertilizers effectively enhances stress resistance, photosynthesis, root development, and quality attributes. Consequently, potassium remains an indispensable tool in agricultural production.