1、Flue

In the northern flue-cured tobacco growing areas, the low potassium content of tobacco leaves is caused by insufficient water supply. Due to the influence of drought stress, most of the potassium fertilizer applied to the soil exists in a fixed state, and it is difficult to be used by tobacco plants (Sonmez et al., 2016; Turan, 2021b).

2、Watering

Improve and reduce the application of fertilizers; on the other hand, according to the survey, compared with drip irrigation and fertilization, the amount of fertilization labor increased by 3-4 times, which is not conducive to the labor-saving cultivation and management of flue-cured tobacco.

3、FERTILIZATION MODEL FOR FLUE

amount of fertilization was 30% less than the conventional fertilizer application. Therefore, the recommended amount will lower the production cost, reduce the environmental pollution caused by excess soi.

Potassium Sulphate (SOP) High

Potassium Sulphate (SOP) Fertilizer is a high-quality, chloride-free source of potassium (K) and sulfur (SO 4 -S), designed to improve crop yield, quality, and resistance to stress.

Top Picks: Best Fertilizer for Tobacco Farming Guide

Discover my expert guide on the best fertilizer for tobacco to maximize your crop yield. Learn essential nutrients, application tips, and top recommendations for success

Potassium sulfate

Except to products containing calcium, Aqualis® SOP Solub can be mixed with nearly all other water-soluble fertilizers. It is widely used in fertigation programs in the late stages when potassium is required in high amounts, without too much nitrogen.

Agricultural Grade Water Soluble Fertilizer Potassium Phosphate Mono

Potassium dihydrogen phosphate is an ideal new fertilizer for flue-cured tobacco. In order to explore the use value and application method of potassium dihydrogen phosphate on flue-cured tobacco, the quality of tobacco leaves was investigated.

Application Progress of Microbial Fertilizers in Flue

The followings were overviewed: the application of microbial fertilizers in China's tobacco production; the influences of microbial fertilizers on the nutrients, microbial biomass and enzymatic activity in tobacco-planting soil; the influences of microbial fertilizers on flue-cured tobacco root system, tobacco yield as well as chemical ...

Effects of Citrate Soluble Potassium Fertilizer on Soil

The results showed that applying citrate soluble potassium fertilizer can reduce soil bulk density, increase soil porosity and the content of available potassium and slowly available potassium, improve microbial quantity, and promote the growth of tobacco roots.

Potassium schoenite: A sustainable potassium source for Flue

vestigated potassium schoenite (PS/KMS), a sulphur-containing fertilizer as an alternate source of K for FCV tobacco. The field experiments were conducted on FCV tobacco (Nicotiana tabaccum L. var. Kanchan) under rainfed and irrigated conditions at ICA

Specialized water-soluble potassium fertilizer for flue-cured tobacco is a fertilizer specifically designed for tobacco crops (especially flue-cured tobacco), characterized by a high proportion of potassium and other micronutrients. It is typically available in liquid or powder form for uniform application during tobacco growth.

I. Basic Components and Functions

1. Main Components:

• Potassium: As one of the essential macronutrients for plant growth, potassium is critical for maintaining cell structure integrity, enhancing photosynthetic efficiency, and facilitating nutrient transport.
• Micronutrients: Including iron (Fe), zinc (Zn), boron (B), etc., which play vital roles in plant growth, disease resistance, and pigment synthesis.
• Nutrients: Besides potassium and micronutrients, it may contain other nutrients such as nitrogen (N), phosphorus (P), magnesium (Mg), etc., working synergistically to promote healthy tobacco growth.

2. Functions:

• Root Development: Potassium enhances water and nutrient absorption in soil, promoting robust root systems, thereby improving tobacco’s adaptability and overall growth quality.
• Yield and Quality Improvement: Adequate potassium stimulates leaf expansion, increases photosynthetic area, and boosts yield. It also enhances tobacco quality, resulting in better taste.
• Stress Resistance: Potassium strengthens pest and disease resistance, reduces pathogen incidence, and improves drought and cold tolerance, ensuring stable growth under adverse conditions.
• Flower Bud Differentiation: Potassium significantly promotes flower bud differentiation, increasing flowering rates and extending flowering periods, laying a foundation for fruit maturation and harvest.

II. Application Methods and Precautions

1. Application Methods:

• Basal Application: Prior to planting, spread the fertilizer evenly on the soil surface and incorporate it into the soil to ensure direct contact.
• Topdressing: During growth, apply additional fertilizer based on plant health and soil fertility, particularly during vigorous growth stages and flower bud differentiation. High-potassium water-soluble fertilizers are recommended.
• Foliar Spraying: During critical growth stages (e.g., flower bud differentiation), apply the fertilizer directly onto leaves via spraying to improve potassium uptake efficiency.

2. Precautions:

• Dosage: Adjust application rates based on soil fertility, tobacco variety, and growth stage to avoid over-fertilization, soil salintion, or nutrient imbalance.
• Timing: Optimal application occurs during peak growth and flower bud differentiation stages for maximum effectiveness.
• Complementary Fertilization: Combine with nitrogen, phosphorus, and other fertilizers to achieve balanced nutrition.
• Environmental Factors: Consider temperature, humidity, and weather conditions to optimize fertilization outcomes.

III. Market Status and Development Trends

1. Current Market:

With the rapid expansion of the tobacco industry, demand for specialized water-soluble potassium fertilizers has grown. Tobacco farmers and enterprises increasingly recognize potassium’s role in improving yield and quality. The market now offers diverse products from various brands, differing in price, quality, and efficacy.

2. Future Trends:

• Technological Advancements: The agricultural sector’s shift toward green eco-friendly practices will drive demand for efficient, safe, and environmentally friendly potassium fertilizers.
• Health-Conscious Consumers: Low-residue, harmless products will gain popularity due to rising awareness of healthy diets.
• Precision Agriculture: Soil testing and precision fertilization technologies will become mainstream, optimizing resource use, reducing costs, and enhancing economic and ecological benefits.

specialized water-soluble potassium fertilizer for flue-cured tobacco is a high-efficiency product tailored to tobacco’s nutritional needs. Rich in potassium and micronutrients, it significantly improves growth, yield, and quality. Proper application methods and balanced fertilization are key to its success. With advancements in agricultural technology and market demands, this fertilizer holds broad prospects for promoting sustainable tobacco production.