Как по внешнему виду томатов определить, какие удобрения следует давать при подкормке?


Как по внешнему виду томатов определить, какие удобрения следует давать при подкормке?
Для начала нужно еженедельно внимательно осматривать растения. При недостатке азота характерен светло-зеленый, иногда чуть желтоватый цвет, листовые пластинки небольшие.

При избытке азота стебель у томата мощный, толстый, листья на верхушке побега скручены и не расправляются в течение дня. Такие «жирующие» растения плохо завязывают плоды, все их силы направлены на рост листьев и пасынков.

При недостатке магния наблюдается мозаичная окраска листьев нижнего и среднего ярусов. Недостаток калия проявляется сероватой или бурой каймой, расположенной по краю листа.

Если растению требуется фосфор, особенно в молодом возрасте, нижняя сторона листьев приобретает фиолетовую или пурпурную окраску.

Источник: supersadovod.ru


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