The flowering period of strawberries is a critical time when vegetative and reproductive growth occur simultaneously, and fertilization management is directly related to fruit set rate, fruit quality and yield. The core principle of fertilization at this time is to be precise, balanced, and efficient. It is necessary to ensure the nutritional needs for flowering and fruit setting, while preventing excessive nutrition that could lead to excessive vegetative growth or fertilizer damage.

First, the specific fertilization plan (in stages).

Phase 1: From bud formation to before the first inflorescence opens

Objective: To reserve sufficient nutrients for flowering and fruit setting, and to promote healthy flower buds.

Fertilizer selection: Monband® water-soluble fertilizer with macro-elements: Choose high phosphorus type or balanced type (Monband® DaTong) + water-soluble fertilizer containing humic acid (Monband® MBT PULI-NANO).

Phase Two: Peak Bloom (when flowers bloom in large quantities)

Objective: To provide stable nutrients, ensure pollination and fertilization, and avoid fertilizer damage to the flowers.

Fertilization strategy: Moderate fertilizer control: Plants are more sensitive to fertilizers, especially nitrogen fertilizers, during this period. If the plants are growing vigorously, the amount or frequency of fertilization can be slightly reduced to prevent excessive growth.

If the plant is growing poorly: continue to use a balanced water-soluble fertilizer, but reduce the concentration.

Ensure adequate moisture: Soil moisture should be sufficient and balanced; alternating periods of dryness and wetness can lead to poor pollination and deformed fruit.

Phase 3: From flowering to the early stage of young fruit enlargement

Objective: To promote rapid fruit enlargement, prevent nutrient deficiency, and improve fruit quality.

Fertilizer selection:For water-soluble fertilizers containing macro-elements: quickly switch to high-potassium types (such as N-P₂O₅-K₂O = 15-5-32 ).

Continuous calcium supplementation: Calcium has poor mobility within plants, and the demand for calcium is high during the fruit enlargement period. At this time, supplementing calcium fertilizers such as calcium nitrate through the roots has limited effect.

Second, important precautions:

1. Avoid excessive nitrogen fertilizer: Too much nitrogen fertilizer during the flowering period is the main cause of excessive vegetative growth, flower drop, poor fruit coloring, and bland taste.

2. Avoid dry or waterlogged soil: Drought can damage the root system and reduce its ability to absorb fertilizer and water; waterlogging can cause root rot and lead to root diseases.

3. Pay attention to fertilizer concentration and location: It is strictly forbidden to apply high-concentration fertilizer directly to the roots to avoid burning the seedlings.

4. Pay attention to soil EC value and pH value: Strawberries prefer a slightly acidic environment, with an optimal pH value of 5.5-6.5. A pH value that is too high or too low will affect the absorption of elements such as phosphorus, calcium, and iron.

5. Environmental control: During the flowering period, maintain a daytime temperature of 20-25℃ and a nighttime temperature of 8-10℃, and ensure sufficient sunlight. These conditions are conducive to the accumulation of photosynthetic products and improve the effectiveness of fertilization.