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Production stack for AssayCore Agro

Core: PostgreSQL 16 + Redis 7 + Kafka 3.7 + MinIO + Keycloak 24 + Spring Boot 3.3 (Kotlin) + React 18/MUI + FastAPI ML (Python 3.11) + Nginx + Docker

Module-specific: Offline-first PWA (mobile GPS field collection) · ISRIC SoilGrids / USDA SSURGO / EU LUCAS reference DB · Mehlich-3 / Bray / Olsen / Morgan extractant calculations · John Deere Operations + Climate FieldView API · LightGBM yield predictor

Deployable on your infrastructure or our managed Hetzner. Self-hosted source-license available.

Request self-hosted license Managed Hetzner deployment

Fertility Recommendation

NPK variable-rate calculator · IPNI 4R Nutrient Stewardship · Penn State Agronomy Guide 2024 · FAO 56

N_rec = (yield × N_removal) − OM_credit − legume_credit · P_rec: Mehlich-3 · K_rec: CEC build-up (3-5% K saturation)

Recommendations Issued

Fields Covered (ha)

1,206

Avg N (kg/ha)

Savings vs Baseline

$114k

Soil test results — Mehlich-3 P extraction · ISO 10390 pH · ISO 11885 ICP-OES nutrient analysis · 16 fields

Field	Crop	pH	OM%	P Mehlich-3	K (ppm)	CEC (cmol+/kg)	Mg	Ca	BD (g/cm³)
Green Oaks — Block A	Corn (Maize)	7	4.3%	55 ppm	116	31	123	2574	1.38
Green Oaks — Block B	Soybean	6.3	1.9%	63 ppm	195	30.4	225	1799	1.29
Riverside Plot Alpha	Winter Wheat	7	4.5%	55 ppm	161	12.2	348	1101	1.28
Riverside Plot Beta	Canola	6.4	2.6%	52 ppm	253	30	323	2588	1.54
North Fields — East	Sunflower	6.7	1.8%	13 ppm	93	14.8	374	882	1.22
North Fields — West	Sugar Beet	6.2	3.5%	28 ppm	83	11.9	268	2705	1.23
Sunflower Block 3	Potato	6	1.9%	26 ppm	138	11.3	147	813	1.6
Sunflower Block 4	Alfalfa	5.5	2.9%	57 ppm	195	22.7	340	1425	1.53
East Meadow — Lower	Corn (Maize)	6.2	2.2%	42 ppm	144	11.8	363	828	1.33
East Meadow — Upper	Soybean	6.8	3.7%	53 ppm	244	19.7	92	2646	1.2
Cerrado Plot 1	Winter Wheat	6.2	3.9%	23 ppm	91	14.7	145	2070	1.33
Cerrado Plot 2	Canola	6.1	4.4%	43 ppm	251	29.9	385	2071	1.42

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