1、Effect of potassium fertilization during fruit development on tomato

Abstract A pot experiment was conducted to investigate the effect of potassium (K) fertilization on tomato quality, plant K uptake, water and K use efficiency (WUE and KUE) under deficit irrigation regime.

2、Optimum N:P:K Ratio of Fertilization Enhances Tomato Yield and

The objective of this study was to determine the optimum N, P, and K levels capable of improving tomato fruit quality and reducing environmental pollution for tomato plants under brackish water irrigation conditions.

3、(PDF) Mineral Content and Quality Parameters of Tomato Fruits as

Methods: A pot experiment was undertaken to investigate the impact of single dose and split potassium fertilization treatments on nutrient content and quality traits of tomato fruits.

4、Title: Potassium fertility management for optimum tomato yield and

Fertigation through buried drip irrigation offers the potential for more efficient K fertilization. The objectives of this project were to compare the effects of continuous and periodic.

Nitrogen and potassium requirements of tomato plants for the

While nitrogen (N) and potassium (K) fertilizers are commonly used in tomato fields for increasing plant growth and productivity, concepts regarding the interactive effects of these elements on tomato fruit quality during storage are ambiguous.

Boost Tomato Yields with Potassium Nitrate Fertilizer

In summary, using potassium nitrate in tomato production can lead to enhanced yields, improved fruit quality, and greater resistance to diseases, with specific technical parameters including optimal application rates and nutrient levels being critical for achieving these benefits.

Optimum N:P:K Ratio of Fertilization Enhances Tomato Yield and Quality

The objective of this study was to determine the optimum N, P, and K levels capable of improving tomato fruit quality and reducing environmental pollution for tomato plants under brackish water irrigation conditions.

Different potassium fertilization levels influence water

Thus, and for a comprehensive view, we evaluated the effect of six different K fertilization regimes; from deficient K1, moderate K2, optimal K3 and K4, to excessive K5 and K6 on two cocktail tomato cultivars.

Potassium Requirements for Optimal Processing Tomato Yield and Fruit

Trials were conducted in nine commercial processing tomato fields in California from 1994 to 1995 to assess the effects of potassium fertilization on fruit yield and quality.

The optimum combination of controlled

Here, we studied the potential of reducing potassium input using controlled-release potassium chloride fertilizer (CR-KCl) and a matching irrigation level. A pot experiment was conducted in a greenhouse, using tomato cultivar ‘Luo la’ as test material.

In modern agricultural production, rational application of potassium fertilizer is crucial for improving tomato quality, yield, and stress resistance. Below is a detailed guide on potassium fertilization practices at different growth stages of tomatoes, aimed at providing references for agricultural production.

I. Early Growth Stage (Germination to Pre-Flowering)

1. Application Time: The optimal period for potassium application is during the seedling stage, after germination. At this stage, young plants have a high demand for potassium. Timely supplementation promotes root development, enhances disease resistance, and improves stress tolerance.

2. Dosage and Method: Based on soil tests and fertilizer recommendations, apply 5-10 kg per mu of potassium sulfate-based compound fertilizer. Spread the fertilizer evenly over the soil surface and incorporate it deeply into the soil to ensure thorough contact with the soil.

3. Precautions:

   • Avoid applying fertilizer during hot periods to prevent seedling burn.
   • Control dosage strictly; excessive use may lead to salt accumulation, harming plant growth.

II. Flowering to Fruit Enlargement Stage

1. Application Time: This is a critical phase for tomato growth, requiring substantial potassium uptake. Apply topdressing fertilizer before or during flowering.

2. Dosage and Method: Apply 10-15 kg per mu of potassium sulfate-based compound fertilizer. Choose sunny days for application and spread the fertilizer uniformly around plants to maximize efficiency.

3. Precautions:

   • Monitor plant health and soil moisture to avoid root damage from over-fertilization or excessive soil wetness.
   • Keep fertilizer away from plant stems to reduce disease risks.

III. Fruit Ripening Stage

1. Application Time: While potassium demand decreases during ripening, moderate application is essential to maintain fruit quality and taste.

2. Dosage and Method: Apply 5-10 kg per mu of potassium sulfate-based compound fertilizer. Spread the fertilizer around plants and lightly cover with soil to ensure absorption.

3. Precautions:

   • Prevent direct contact between fertilizer and fruits to avoid adverse effects.
   • Avoid applying fertilizer before rain or strong winds.

IV. Comprehensive Management Guidelines

1. Soil Testing: Regularly test soil for potassium content and pH to refine fertilization strategies.

2. Balanced Fertilization: Coordinate potassium with other nutrients (e.g., nitrogen, phosphorus, magnesium) to achieve balanced soil nutrient supply.

3. Scientific Irrigation: Adjust irrigation frequency and volume based on soil moisture and weather conditions to prevent soil compaction and salt buildup.

4. Disease and Pest Control: Combine biological and physical control methods to minimize chemical pesticide use and protect ecosystems.

By following these guidelines, tomatoes can receive adequate potassium support for healthy growth and high-quality yields. Scientific management and rational fertilization are key to optimizing both crop performance and resource efficiency.