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、高温下钾肥调控水稻产量的研究进展

Therefore, this paper discusses the possible role of potassium fertilizer in alleviating rice high temperature stress from the aspects of the regulation of “source-flow-sink”, pollen germination and pollen tube elongation, and the steady state of active oxygen and hormones.

3、Impact of Potassium

Results showed that the vegetative growth, yield, physiological and biochemical parameters were affected under salt-affected soil conditions.

4、(PDF) Effects of Agricultural Potassium Fertilizer Application on Soil

This review examines the impact and regulatory mechanisms of potassium fertilizer on the soil carbon cycle, discussing how potassium fertilizer affects soil carbon storage and flow through...

The combination of nanotechnology and potassium: applications in

This paper reviews the applications of common potassium-containing materials, explores the effects and mechanisms of nano-fertilizers on plants, and offers insights into future applications of nano-potassium fertilizers in agriculture.

Frontiers

Relevant studies have shown that moderate nitrogen, phosphorus, and potassium fertilization can effectively increase the nutrient content of plant leaves and soil, thereby increasing crop yield and quality (Zhang et al., 2020; Wan et al., 2021; Zhang et al., 2022).

Effect of Phosphorus and Potassium Fertilizers Application on Soil

The granules of potassium and phosphorus fertilizers are applied below and around the seed tubers at planting. To avoid leaching as a result of high rainfall, potash was applied in two parts (half when the plant emerged and a half at midstage after planting), while phosphorus was applied all at once.

Effects of potassium fertilizer application rates on rapeseed yield and

Increasing potassium fertilizer application is an effective strategy to enhance stress resistance and mitigate yield losses caused by frost damage. This study aimed to evaluate the effects of different potassium fertilizer rates on rapeseed yield reduction following frost damage.

Effects of Long

Compared with NP and NPK treatments, the accumulative grain yield was increased 6%-8% under MS, NPKMS and NPKMSD, whereas potassium uptake was promoted 22%-43%. Moreover, the values of PAUE produced by NPKMS and NPKMSD were only half under NPK and MS treatments.

Effects of long

In this study, the spatial distribution of available potassium (AK) in East China was predicted using kriging with external drift (KED) and random forest (RF) techniques. A comparison of the trends in the 1980s and 2010s showed that the mean AK values in East China generally increased.

I. Impacts of Potassium Fertilizer on Soil

Potassium fertilizer is a crucial nutrient for plants, aiding water absorption, nutrient uptake, and growth. improper use can negatively affect soil health.

1. Increased Soil Solution Concentration: Potassium ions compete with other ions in the soil, raising the soil solution’s concentration. This may reduce microbial activity, impairing soil structure and function.

2. Altered Soil pH: Excessive potassium application can acidify the soil, inhibiting plant growth.

3. Soil Compaction: Potassium fertilizers may slow organic matter decomposition, leading to compacted soil. This hinders normal plant growth, weakens root systems, and harms plant health.

II. Effects of High Temperature and Rainfall on Potassium Fertilizer Efficiency

1. Accelerated Leaching: High temperatures and rainfall increase water evaporation, causing potassium loss. This reduces fertilizer effectiveness and shortens its residual impact.

2. Reduced Uptake Efficiency: Plants absorb less potassium under wet, hot conditions due to diluted intracellular potassium concentrations.

3. Exacerbated Side Effects: Excess potassium may lead to toxicity, manifesting as leaf tip necrosis, deformed foliage, or stunted growth.

III. Guidelines for Potassium Fertilizer Application

1. Timing: Avoid excessive use during hot, rainy seasons. Apply moderate amounts during early growth or peak development stages.

2. Integrated Application: Combine potassium with other fertilizers to minimize soil impact. Use drip or sprinkler irrigation to reduce runoff.

3. Dosage and Ratio: Adjust amounts based on plant type, growth stage, and soil conditions. Excess potassium can counteract benefits.

4. Monitoring: Regularly test soil and plant potassium levels to optimize usage and adjust applications as needed.

Applying potassium fertilizer during high temperatures and rainfall risks soil degradation and impaired plant health. To ensure safe and effective use, prioritize proper timing, balanced application methods, controlled dosages, and routine monitoring. This approach promotes healthy plant growth while mitigating negative effects.