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Introdução do sulla num agrossistema multifuncional na Tunísia

Introdução do sulla num agrossistema multifuncional na Tunísia

Khédija Bouajila

94,80 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Botánica y ciencias de las plantas
ISBN:
9786209516214
94,80 €
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O sulla do norte (Hedysarum coronarium L.), variedade Bikra 21, foi plantado de duas formas: semeadura direta (SD) e semeadura convencional (SC), com o objetivo de valorizar terrenos com inclinação de 6% no noroeste da Tunísia. As taxas de cobertura da vegetação foram de 85% e 60%, respetivamente, em SD e SC. De acordo com o modo de instalação da espécie, as produções energéticas e proteicas variaram, respetivamente, de 2100 a 5120 UFL ha-1 e de 445 a 1084 kg ha-1. O sulla instalado em SC apresenta significativamente as produções mais elevadas. Em condições de instalação convencionais, as restituições orgânicas e nitrogenadas asseguradas pela sulla foram estimadas em 2,28 t ha-1 e 110 kg ha-1. As análises físicas e químicas mostram um conjunto de efeitos positivos do cultivo da sulla em determinados parâmetros físicos e químicos do solo, como o teor de matéria orgânica, nitrogénio e estabilidade estrutural. O cálculo do custo de produção da UFL dá, nas nossas condições experimentais, um custo de 0,073 DT/UFL para o SC e 0,160 DT/UFL para o SD. Palavras-chave: Sulla Bikra21, Semeadura Direta, Semeadura Convencional, agro-sistema, características físico-químicas.

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