Strawberry precision fertilization plan and product application guide
(Planting optimization plan and intelligent fertilization system for the main strawberry producing areas in the world)
This program integrates field verification data from major production areas around the world, adapts to different cultivation systems through modular design, and cooperates with all products of our factory to achieve a fertilizer utilization rate of more than 78% (about 45% in the traditional way).
The specific implementation needs to be fine-tuned in combination with local water quality and variety characteristics.
NO.1 Analysis of global production pattern
1.Capacity distribution：
China (43%): Shandong, Liaoning and Yunnan are mainly cultivated with facilities
United States (18%): Production systems in California and Florida
Spain (12%): Winter greenhouse cluster in Huelva region
Japan (8%): Elevated cultivation system in Kumamoto and Tochigi Prefectures
Australia (6%): Off-season matrix cultivation in Queensland
2.Environmental constraints：
Continuous cropping obstacle (Japanese tests show that heavy stubble will reduce production by 60% in 3 years)
Salinization (EC value>3.5 mS/cm in Spanish coastal greenhouses)
Drought stress (California’s average annual rainfall is <400mm)
Low temperature barrier (winter ground temperature <5℃ in northern China)
NO.2 Cross-regional fertilizer demand model (ISTA 2024 standard)
Key regulatory objectives of nutritional demand characteristics in the growth stage
Seedling stage colonization N:P:K=3:1:2, humic acid is required to promote roots and shorten the seedling stage
Flower bud differentiation is high in phosphorus (P2O5≥50%), boron-zinc strengthening improves inflorescence quality
Fruit enlargement K:Ca:Mg=8:2:1, amino acid supplementation to prevent hollow fruit
Carbon-nitrogen synergy (C/N 25:1) in the late stage of harvesting to maintain plant vitality
NO.3 Regional customized fertilization plan
- Cultivation plan
Soil pretreatment：
Bio-organic fertilizer (BF-300) 3 tons/mu + lime nitrogen disinfection
Technical parameters: Bacillus subtilis ≥500 million/g, organic matter ≥70%
Drip irrigation top dressing：
Bud stage: NPK 20-20-20 + chelated calcium (1000 times liquid)
Color transition period: NPK 12-5-40 + amino acids (800 times liquid)
- Open air system
Water and fertilizer integration：
Base fertilizer: Controlled release fertilizer (CRF 18-6-12) 50kg/mu
Critical period：
Before flowering: Humic acid liquid fertilizer (pH 5.8) EC 1.8 mS/cm
Fruit picking period: seaweed extract + molybdenum (0.01ppm)
- Greenhouse planting
Salinization solution：
Before colonization: Humic acid leaching agent (5kg/mu) reduces EC by 35%
Fertility period: special formula fertilizer (NPK 15-5-30+TE) anti-salt stress
- Elevated cultivation
Precise supply system：
Nutrient solution formula (pH 5.5-6.0)：
Flowering period: Liquid A (CaNO3) + liquid B (MKP+TE)
Puffing period: Potassium-increasing formula (K+ increased by 40%)
- Australian matrix cultivation
Cycle improvement plan：
Coconut bran rejuvenating agent: contains Trichoderma TS-25 bacteria (10^8 CFU/ml)
Foliar set meal：
Morning spray: Amino acid + calcium gluconate
Xi spray: Potassium dihydrogen phosphate + potassium silicate
NO.4 Functional product application matrix
Environmental challenge adaptation product mechanism of action
Continuous cropping disorder BF-300 bio-organic fertilizer secretes chitinase to inhibit pathogenic bacteria
High temperature stress seaweed-betaine complex induces heat stress protein expression
Low temperature and low light amino acid-rare earth chelate improves RuBisCO enzyme activity
Heavy metal pollution humic acid passivator forms a stable complex
NO.5 Intelligent water and fertilizer management standards
Irrigation control parameters (according to ISHS standard)：
Flowering period: The water content of the matrix is 70% θf
Puffing period: daily liquid supply 2.5L/plant
EC gradient management: 1.2→2.0→1.5 mS/cm
Water quality treatment requirements：
Iron content <0.5ppm (anti-dripper clogging)
Carbonate hardness <15°dH (anti-pH fluctuation)
After precise drip irrigation of water-soluble fertilizer (N–KOO=1:1.8), the crown width of strawberry plants increased by 40%, the number of blooms increased by 55%, and the amount of fruit per plant reached more than 28.
Harvest data show that the single fruit of fertilized strawberries weighs 35 grams, has a brix of 12.8°Bx, a hardness of 0.6kg/cm2, and the commercial fruit rate exceeds 92%.
Microscopic observation showed that the gap between the pulp cells was reduced by 20%, the anthocyanins were deposited evenly, the seed depression was ≤0.3mm, and the taste was delicate and slag-free.