1、Optimal Frequency for Water

To select the optimum fertilizer application under specific irrigation levels and to provide a reliable fertigation system for tomato plants, an experiment was conducted by using a microporous membrane for water-fertilizer integration under non-pressure gravity.

2、Identification of optimal irrigation and fertilizer rates to balance

Optimal fertilization coefficient ranges were 0.98–1.34 (spring), 1.06–1.41 (fall). The precise management of water and fertilizer is necessary to maximize greenhouse tomato production.

3、Effects of Nutrient Solution Application Rates on Yield, Quality, and

For an optimal water and fertilizer system with respect to the nutrient solution irrigation of greenhouse tomatoes using cultivation substrates, a two-year greenhouse cultivation experiment was conducted from 2022 to 2023.

4、Optimizing Water–Fertilizer Coupling Across Different Growth

An integrated scoring analysis revealed that treatment T5 achieved the highest yield, WUE, and partial factor productivity (PFP), whereas T7 excelled in fruit quality (VC, LC, SSC, and SP). Moreover, TOPSIS confirmed T5 as the optimal water–fertilizer strategy to achieve high yield, improved quality, and efficient resource utilization.

5、(PDF) Effects of different fertilization rates on growth, yield

To select the optimum fertilizer application under specific irrigation levels and to provide a reliable fertigation system for tomato plants, an experiment was conducted by using a...

Effect of Different Fertilizer Application Frequency on Yield and

The purpose is to determine the suitable frequency of fertilizer application in tomato cultivation, and provide the theoretical support for scientific fertilization.

Effects of Nutrient Solution Application Rates on Yield

For an optimal water and fertilizer system with respect to the nutrient solution irrigation of greenhouse tomatoes using cultivation substrates, a two-year greenhouse cultivation experiment was conducted from 2022 to 2023.

Integrative approaches to nutrient management in tomato cultivation for

The closed hydroponic system offered significant advantages in terms of water and fertilizer conservation, allowing nutrient solution consumption by 96% and fertilizer consumption by 97% without adversely affecting crop yield provide substantial benefits regarding water conservation and fertilizers (Fayezizadeh et al., 2021).

Intelligent fertigation improves tomato yield and quality and water and

Two IFS treatments increased tomato yield and quality, and water and nutrient use efficiency. IFS controlling soil moisture at 80–85% of FC was the best fertigation strategy.

Optimal Tomato Fertilizer Frequency For Healthy, Bountiful Harvests

Use a water-soluble fertilizer every 7-10 days, diluting it to half the recommended strength to avoid burning the roots. This consistent, diluted approach mimics the natural nutrient uptake in a larger soil volume.

Tomatoes are an essential vegetable crop with high nutritional demands throughout their growth cycle. The rational use of water-soluble fertilizers can significantly improve yield and quality. Below are recommendations for fertilization frequency:

I. Understanding Tomato Growth Requirements

1. Nutritional Needs: Tomatoes require substantial amounts of nitrogen (N), phosphorus (P), and potassium (K).

   • Nitrogen promotes chlorophyll synthesis and photosynthesis.
   • Phosphorus supports root development and fruit formation.
   • Potassium regulates water balance and enhances stress resistance.

2. Growth Stages:

   • Seedling and flowering stages: Higher nitrogen demand.
   • Maturity stage: Increased need for phosphorus and potassium.

II. Selecting Appropriate Fertilizers

1. Organic Fertilizers: Options like chicken manure or cow dung provide comprehensive nutrients but require controlled application to avoid excess soil salinity.

2. Water-Soluble Fertilizers:

   • Choose formulas rich in N, P, and K for rapid absorption.
   • Ensure proper nutrient ratios and avoid heavy metal contamination.

III. Rational Fertilization Practices

1. Timing:

   • Apply during critical growth periods (spring and autumn).
   • Reduce frequency in summer and winter to prevent over-fertilization.

2. Dosage:

   • Adjust based on plant size, growth stage, and soil fertility.
   • Increase gradually from seedling to maturity; reduce during late stages.

3. Application Method:

   • Use deep application to minimize nutrient loss.
   • Avoid direct contact with roots to prevent burning.

IV. Key Considerations

1. Avoid Over-Fertilization: Excessive use leads to soil salinization, harming plants. Follow recommended dosages.

2. Prevent Alkaline Reactions: Avoid mixing acidic fertilizers with alkaline substances to prevent nutrient lockout.

3. Supplement Micronutrients: Provide iron (Fe), zinc (Zn), manganese (Mn), etc., for balanced growth.

4. Soil Testing: Regularly test soil nutrients to adjust fertilization plans.

5. Weather Adaptation:

   • Increase irrigation in dry seasons.
   • Reduce fertilization in rainy periods to avoid root damage.

6. Nutrient Synergy: Combine N-P-K with calcium (Ca), magnesium (Mg), and sulfur (S) for optimal health.

7. Pest and Disease Control: Monitor plants and address issues promptly using biopesticides or chemicals.

8. Crop Rotation: Avoid continuous tomato planting to prevent soil depletion and pest buildup.

9. Environmental Protection:

   • Use low-pollution fertilizers.
   • Reduce runoff through mulch or film covers.

10. Timely Top-Dressing: Address deficiencies (e.g., yellowing leaves) with micronutrient-rich supplements, but avoid overapplication.

optimizing water-soluble fertilizer use tailored to tomato growth stages and environmental conditions is crucial for maximizing yield and quality. Adjust practices based on soil tests and seasonal changes for best results.