Баланс на почвените макроелементи: Ролята на органичните подобрители в устойчивото земеделие
Веселина Василева, Мариана Христова, Ана Кацарова, Николай Динев
Abstract: основата на устойчивото управление и земеползване са поддържането на положителен баланс на хранителните елементи в почвата и опазване на плодородието ѝ. Настоящата работа разглежда 6 органични подобрителя – различни по вид и съдържание на макроелементи и остатъчния ефект, които те оказват върху хранителния статус на почвата.
След компостиране при всички варианти се наблюдава значително увеличение на съдържанието на общ N, NO3-N, P2O5 и K2O. Независимо от това след приключване на вегетацията на марулята, почвата остава много слабо запасена с общ N, което налага азотно торене или подхранване при отглеждане на последващи култури. Установена е промяна в почвения химичен баланс по отношение съдържанието на P2O5 и K2O в края на експеримента. Това е показател за успешното прилагане на органични подобрители с цел повишена екологична устойчивост на почвата.
Keywords: Калифирнийски червеи; компост; оборски тор; утайка
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| Date published: 2023-12-20
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