1、Editorial: Factors affecting the efficacy of foliar fertilizers and the

In this Research Topic, Dhaliwal et al. evaluated the effects of foliar application of B and N mixtures on growth performance and nutritional quality of Indian mustard (Brassica juncea L.).

2、Mineral Particles in Foliar Fertilizer Formulations Can Improve the

In this work, we focussed on analysing the effect of adding Ca-carbonate (calcite, CaCO 3) micro- and nano-particles as model sparingly soluble mineral compounds to foliar fertilizer formulations in terms of increasing the rate of foliar absorption.

3、Multi

Multi-nutrient and humic acid foliar applications enhance green gram growth and yield on alkaline soil by increasing nutrient use and physiological activity. Widespread multi-nutrient deficiency and water stress are the major yield-limiting factors in alkaline soil.

4、Enhancing wheat production and quality in alkaline soil: a study on the

Zinc (Zn) is an essential nutrient for plant growth and its deficiency is most common in alkaline and calcareous soils. Therefore, this study aimed to evaluate the effect of Zn applied either alone or in combination with foliar application on the quality and production of wheat grown in alkaline soils.

Effects of Foliar Fertilization: a Review of Current Status and Future

Chelated foliar fertilizers are effective for improving element utilization efficiency, crop yield, and quality. The physicochemical properties, molecular structure, chelating strength, and chelating rate of chelating agents modulate the effects of application of nutrients.

Foliar nutrition: Potential and challenges under multifaceted

The potential of foliar fertilization in improving crop yield and quality under environmental stresses has been evaluated based on a meta-analysis. Foliar-applied fertilizers showed higher crop plants yield and quality traits by 15–19% and 9–29%, respectively, under different environmental stresses.

Effects of Foliar Fertilization: a Review of Current Status and Future

This study reviews and discusses the effects and problems associated with sugar alcohol–containing chelated fertilizers and foliar fertilizers.

Foliar Fertilizer Application Technology: Precision Application Guide

This article will comprehensively analyze the core technologies of foliar fertilizer application from basic principles to practical key points, providing scientific guidance for agricultural producers.

A Case Study on the Effect of Foliar Nitrogen Fertilization on the

This study aims to show whether the use of foliar nitrogen fertilizers in combination with sulfur in a two-year field experiment with triticale stimulates the multiplication of selected groups of microorganisms and the level of soil enzymatic activity.

Foliar application of bioorganic fertilizer enhances plant nutrients

Foliar Bio-organic fertilizer (BIOF) enhanced soil properties including soil enzymes, except soil P and pH. The foliar application has mitigated the uptake of the cadmium and iron to the plants. Foliar organic fertilizer increased yield parameters, including fruit size and numbers.

Foliar fertilization is a critical practice in modern agriculture, involving the direct application of nutrients to plant leaves to enhance nutritional uptake, promote growth, and increase yields. Within foliar fertilizers, alkaline components refer to substances rich in alkaline properties that regulate a plant’s acid-base balance, facilitating nutrient absorption and utilization.

1. Key Components

• Ammonia Solution (Aqueous Ammonia): A common alkaline fertilizer high in nitrogen, providing rapid nutrient supplementation for plants.
• Lime (Calcium Compounds): Alkaline substances reacting with soil acids to form calcium carbonate, neutralizing pH. In foliar applications, lime helps balance soil acidity and supports healthy growth.
• Sulfur (Elemental Sulfur): An alkaline-rich component that boosts photosynthesis, enhances stress resistance, and improves soil structure and aeration.

2. Functions

• pH Regulation: Alkaline ingredients stabilize a plant’s internal acid-base balance, optimizing nutrient absorption.
• Enhanced Photosynthesis: Sulfur and other alkaline elements amplify photosynthetic efficiency, increasing productivity.
• Stress Resistance: Alkaline fertilizers strengthen plants’ ability to withstand environmental stressors like drought or heat.

3. Application Guidelines

• Dilution: Dilute foliar fertilizers to ~2000:1 ratio before use.
• Spraying: Apply evenly across leaf surfaces, avoiding overapplication to prevent fertilizer burn.

4. Precautions

• Avoid Overuse: Excessive use may cause leaf scorching or inhibit growth.
• Select Appropriate Formulas: Choose fertilizers tailored to specific plant species and growth stages.

Alkaline components such as ammonia, lime, and sulfur play vital roles in balancing pH, boosting photosynthesis, and improving stress resilience. Proper dilution and dosage are critical to maximize benefits while preventing damage. When used strategically, foliar fertilization with alkaline ingredients enhances crop quality and yield, supporting sustainable agricultural practices.