1、Potassium in agriculture – Status and perspectives

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. Average soil reserves of K are generally large, but most of it is not plant-available.

2、Impacts of long

This study assessed changes in soil potassium (K) pools, soil K-bearing minerals, and crop yields without K-fertilizer application for 25 years on the North China Plains.

3、The potassium paradox: Implications for soil fertility, crop production and human health

Intensive fertilizer usage of KCl has been inculcated as a prerequisite for maximizing crop yield and quality, and relies on a soil test for exchangeable K in the plow layer to ensure that soil productivity will not be limited by nutrient depletion.

4、Nitrogen, Phosphorus, and Potassium Flows through the Manure Management Chain in China

Herein, we present a detailed analysis of the nutrient flows and losses in the “feed intake–excretion–housing–storage–treatment–application” manure chain, while considering differences among livestock production systems.

A review of the fate of potassium in the soil–plant system after land application of wastewaters

In planning for the effective use of wastewaters with high potassium levels it is important to know not only the overall nutrient uptake, but also the plant removal efficiency.

Potassium for Sustainable Agriculture

Application of K fertilizers should be dealt more aggressively because in addition to direct crop-growth promoting effects, it also improves the nutrient use efficiency of plants and better N use efficiency has been observed at K fertilized agricultural sites.

Mixing Manure with Chemical Fertilizers, Why?and What is After?

Using chemical fertilizers or organic manure alone as amendments may bring negative effects to the quality of crops. Neither of these alone can sustain productivity. Hence, judicious uses of organic manure with chemical fertilizers are essential to augment productivity of crops.

theoretical framework to study potassium utilization efficiency in response to withdrawal of potassium

According to this analysis, the simultaneous use of several indicators could help to refine plant breeding for high NUE. The data also suggest that a trade off between plant productivity and the time necessary to reduce the concentration of K + by half is inherent to the dynamics of plant systems.

Establishing grading indices of available soil potassium on paddy soils in Hubei province, China

However, application rates and timing of organic or inorganic fertilizers are often based on an optimal nitrogen supply, but unfortunately, potassium (K) requirement is often neglected. It may...

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

The application of K fertilizer to plants is a simple agronomic practice used to increase crop tolerance to a temporary water shortage.

In agricultural production, rational fertilization is key to improving crop yield and quality. for peanut seedlings, high-potassium fertilizers are not an ideal choice. Below is a detailed analysis of why high-potassium fertilizers should not be used for peanut seedlings.

1. Peanut’s Adaptation to Soil pH

Peanuts are acid-loving plants that require significant acidic substances to maintain normal physiological functions during growth. Using high-potassium fertilizers may alter the soil’s pH, leading to poor growth or even death in peanut plants. fertilizers suitable for peanut growth should be selected, and high-potassium fertilizers should be avoided.

2. Peanut’s Nutrient Absorption Characteristics

Peanuts have different abilities to absorb nutrients like nitrogen (N), phosphorus (P), and potassium (K). Generally, peanuts require more nitrogen than phosphorus or potassium. Excessive use of high-potassium fertilizers may disrupt the balance of nutrient absorption, negatively impacting growth and development.

3. Impact of High-Potassium Fertilizers on Peanut Roots

High-potassium fertilizers can increase potassium ion concentration in the soil, inhibiting peanut root growth. Since roots are the primary pathways for water and nutrient absorption, damaged or weakened roots will hinder normal growth. Thus, the use of high-potassium fertilizers should be controlled to avoid harming peanut roots.

4. Effects on Yield and Quality

While appropriate potassium fertilization can promote growth and improve yield and quality, excessive potassium leads to overly vigorous growth, weak stems, yellowing leaves, small or shriveled fruits, and reduced economic value. Additionally, excess potassium causes soil salinization, further harming peanut growth.

5. Environmental Impact

High-potassium fertilizers raise soil potassium levels, contributing to lower groundwater tables, soil structure damage, and resource depletion. They may also cause environmental issues like eutrophication of water bodies. Sustainable agriculture practices, such as using organic fertilizers instead of chemical ones, are strongly recommended.

6. Impact on Pests and Diseases

Overusing high-potassium fertilizers promotes excessive plant growth, making peanuts more susceptible to pests and diseases (e.g., aphids, spider mites). Weakened resistance reduces yield and quality. Fertilizer use should be managed carefully to minimize pest risks.

The reasons high-potassium fertilizers should not be used for peanut seedlings include soil pH incompatibility, imbalanced nutrient absorption, root inhibition, negative effects on yield/quality, environmental harm, and increased pest susceptibility. Farmers should follow scientific fertilization principles, applying fertilizers tailored to peanut growth stages and soil conditions to ensure healthy development.