Азот, фосфор, калий, микроэлементы
ФИЛЬМ
АЗОТ, ФОСФОР, КАЛИЙ, МИКРОЭЛЕМЕНТЫ…. (1984)
Учебный фильм кинокурса «Основы агрохимических знаний».
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![[14] Азот. Фосфор | ЕГЭ за 30 дней](https://sun9-73.userapi.com/Y2IilV8gSh2zw4CHz-c_lTaI6UAQ5qceY_v7PA/yLLL9h4hCbU.jpg)
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