1、Effect of potassium fertilization during fruit development on tomato

Deficit irrigation and increasing K fertilization significantly improved fruit quality. Sufficient water supply during fruit development is essential to improve plant WUE. K fertilization during fruit development promoted K uptake, while decreased KUE.

2、(PDF) Potassium Nutrition of Fruit Crops

Potassium (K) nutrition is of paramount importance in fruit crops because of its profound influence on appearance, colour, soluble solids, acidity, taste, vitamin contents, and shelf-life of...

3、Potassium fertilization arrests malate accumulation and alters soluble

With the application of different levels of K fertilizer, fructose, sorbitol, glucose and sucrose accumulation rates significantly changed during fruit development. Fruit in the K2 group had higher fructose, sucrose and glucose levels than those in other treatment groups at 126 DAB.

4、Foliar application of potassium

For these reasons, the aim of the present study was to assess if the repeated applications of K-based fertilizers during the production period (mid-June to late August) might affect the quality parameters of strawberry (Fragaria × ananassa 'Murano') fruits.

Effect of potassium on the agronomic traits and fruit quality of Goji

Therefore, the rational application of K fertilizer is crucial for the healthy growth and quality improvement of plants. The effect of K on the quality of many crops is already explored.

Potassium fulvic acid fertilizer improve fruit setting rate • JINGFENG

The potassium fulvic acid fertilizer used is black flake produced by Jingfeng Humic Acid Factory. Containing 50% humic acid, 50% fulvic acid, and 12% potassium oxide. The selected test material is the normal-growing big tree in full fruit period. In the same set of experiments, the tree vigor, crown size and ecological conditions were consistent.

Precise fertilization technology of fruit trees based on quality

In this paper, we propose a method for precision fertilization of fruit trees based on fruit quality analysis, with the existing '5416' experimental data of 'Cabernet sauvignon' wine grape used as a typical example for preliminary modeling.

Foliar spraying of potassium sulfate during fruit development

Potassium sulfate (K2 SO 4) is the best source for potassium supplementation to improve citrus fruit quality. Six-time K 2 SO 4 foliar application throughout fruit development noticeably increased the fruit quality, specifically sugar accumulation.

Foliar Nourishment with Different Potassium Sources to

This study systemically evaluated the potential effects of different foliar-applied potassium-based fertilizers on the yields of lemon trees grown in potassium-deficient soils. The fertilizers were applied to improve the absorption of nutrients and enhance physiological performance.

EFFECTS OF POTASSIUM FOLIAR FERTILIZATION ON DIFFERENT FRUIT TREE CROPS

Potassium (K) is an essential mineral nutrient for the fruit growth and quality. Foliar spray is starting to be used by fruit growers in addition to soil application or fertigation.

Potassium fertilizer plays a crucial role in fruit tree cultivation. It not only promotes fruit growth and development but also improves fruit quality and increases yield. The effectiveness of potassium fertilizer depends on adjusting its application according to the growth stage of the trees and soil conditions. Below are key recommendations for optimizing potassium use in fruit tree planting:

1. Understand the Importance of Potassium Fertilizer

• Promotes Growth: Potassium enhances root development, strengthens water and nutrient absorption, and stimulates overall plant growth.
• Improves Fruit Quality: It enriches fruit taste, color, and nutritional value, making fruits sweeter, juicier, and more marketable.
• Increases Yield: Potassium boosts fruit setting rates, reduces disease susceptibility, and enhances economic returns by improving productivity.

2. Select the Right Type of Potassium Fertilizer

• Potassium Sulfate: Suitable for most fruit trees (e.g., apples, pears). Its high solubility ensures easy absorption.
• Potassium Chloride: Ideal for calcium-loving trees (e.g., grapes, citrus). It balances calcium levels and strengthens disease resistance.
• Potassium Nitrate: Best for nitrogen-demanding trees (e.g., peaches, cherries). Provides both potassium and nitrogen to support leaf growth.

3. Timing and Methods of Application

• Base Fertilization: Apply before planting or at the start of the growing season, combined with organic fertilizers and compound fertilizers to improve soil fertility and water retention.
• Topdressing: Apply supplemental fertilizer during critical growth stages (e.g., fruit enlargement) via foliar spraying or soil application based on soil tests and tree health.
• Irrigation Integration: Pair potassium application with adequate irrigation to maximize absorption. Avoid overwatering to prevent soil salinzation or root hypoxia.

4. Dosage and Concentration Control

• Optimal Usage: Base dosage on soil tests and tree requirements. Excessive potassium may cause excessive vegetative growth, reducing fruit quality.
• Dilution Ratio: Follow recommended dilution guidelines to ensure efficient absorption.
• Root Protection: Avoid direct contact with roots to prevent burning. Spread fertilizer evenly on soil surfaces before incorporation.

5. Soil Environmental Considerations

• Soil pH: Choose fertilizer types suited to soil pH, as potassium solubility varies with acidity/alkalinity.
• Soil Texture: For clay soils, extend fertilization intervals due to slow release; for sandy soils, shorten intervals.
• Soil Moisture: In dry conditions, irrigate before fertilizing; in wet conditions, minimize water to avoid nutrient runoff.

6. Monitoring and Management

• Observe Growth: Track new shoot development, leaf color, and fruit progression to assess fertilizer effectiveness.
• Data Logging: Record application timing, amounts, methods, and soil conditions for analysis and adjustment.
• Adapt Strategies: Refine approaches based on monitoring results and soil tests to optimize outcomes.

Effective use of potassium fertilizer in fruit tree cultivation requires careful consideration of fertilizer type, timing, dosage, soil conditions, and continuous monitoring. By implementing these practices, growers can ensure robust nutrient supply, healthy tree growth, superior fruit quality, and maximized economic benefits.