Agriculture & Fertilizers

8 химических применений в Agriculture & Fertilizers

Agricultural chemistry feeds the world. Fertilizers, pesticides, and soil amendments are chemical products that dramatically increase crop yields. The Green Revolution of the 1960s-70s, powered by synthetic nitrogen fertilizers from the Haber-Bosch process, doubled global food production and prevented widespread famine. Today, agriculture consumes about 200 million tonnes of fertilizer nutrients (N, P, K) annually.

Key Processes

The Haber-Bosch process synthesizes ammonia (N2 + 3H2 -> 2NH3) at 400-500 degrees C and 150-250 atm using an iron catalyst. Ammonia is converted to urea, ammonium nitrate, and other fertilizers. Phosphate fertilizers are produced by treating phosphate rock with sulfuric acid (superphosphate) or phosphoric acid (triple superphosphate). Potash mining provides potassium chloride fertilizer.

Career Paths

Agrochemists develop fertilizer formulations for specific soil types and crops. Pesticide chemists design molecules that target pests while minimizing environmental harm. Soil scientists analyze nutrient levels and recommend amendments. Environmental chemists monitor agricultural runoff and develop remediation strategies.

Future Trends

Precision agriculture uses sensors and data analytics to apply chemicals only where needed, reducing waste by 20-30 percent. Slow-release and nano-fertilizers improve nutrient uptake efficiency. Biological nitrogen fixation research aims to engineer non-legume crops that make their own fertilizer. Biopesticides from natural sources reduce chemical residues.

Агрохимическая известь для коррекции pH почвы

Нейтрализация кислых почв для улучшения доступности питательных веществ

Agricultural liming is the application of calcium carbonate (calcite or ground limestone) or calcium-magnesium carbonate (dolomite) to acidic soils to …

Global Industrial Scale · $8 billion

Повышение эффективности биологической азотфиксации (инокулянты Rhizobium)

Использование симбиотических бактерий для превращения атмосферного азота в питание растений

Biological nitrogen fixation (BNF) by Rhizobium bacteria in symbiosis with legume roots converts atmospheric N2 into plant-available ammonia using the …

Global Industrial Scale · $650 million

Производство фосфорных удобрений (суперфосфат и DAP)

Высвобождение почвенного фосфора для мирового сельскохозяйственного производства

Phosphate fertilizers are produced by treating phosphate rock (fluorapatite) with sulfuric acid to create single superphosphate (SSP), or with phosphoric …

Global Industrial Scale · $25 billion

Производство фунгицида на основе сульфата меди (бордоская жидкость)

140-летний фунгицид, до сих пор защищающий виноградники

Copper sulfate is one of the oldest and most widely used fungicides in agriculture, first applied as Bordeaux mixture (copper …

Global Industrial Scale · $900 million

Синтез аммиака по методу Габера–Боша

Процесс, кормящий половину населения Земли

The Haber-Bosch process synthesizes ammonia from atmospheric nitrogen and hydrogen gas at high temperature and pressure over an iron catalyst. …

Global Industrial Scale · $75 billion

Синтез гербицида глифосата

Наиболее широко применяемое действующее вещество гербицидов

Glyphosate (N-(phosphonomethyl)glycine) is the most widely used herbicide globally, originally developed and marketed by Monsanto as Roundup. It works by …

Global Industrial Scale · $6 billion

Синтез мочевины из аммиака и углекислого газа

Наиболее потребляемое твёрдое азотное удобрение в мире

Urea is the world's most widely used solid nitrogen fertilizer, produced by reacting ammonia with carbon dioxide at high temperature …

Global Industrial Scale · $60 billion

Синтез пиретроидных инсектицидов

Синтетические аналоги природного инсектицида хризантем

Synthetic pyrethroids are insecticides modeled on pyrethrin, the natural insecticidal compound found in chrysanthemum flowers (Chrysanthemum cinerariifolium). Pyrethroids like permethrin, …

Global Industrial Scale · $4.5 billion