Bioproducts evaluated for tomato (Solanum lycopersicum, Mill) production under a protected crop system
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Abstract
closely linked to the proven risk, provoked to human health
by foods containing toxic residuals derived from pesticides
and mineral fertilizers, which has encouraged an international
movement, intended to improve its biological quality by means
of using available natural resources in agroecosystems. Cuba
is not kept out of this situation and proposes some ecological
alternatives to manage agricultural crops developed under a
protected cultivation system, which are great chemical
consumers. This work was carried out under protected
cultivation housing conditions aimed at studying the effect of
mycorrhizae and brassinosteroid analogues as ecological
alternatives for tomato production under such productive
system. There were seven completely randomized treatments
referred to the single and combined application of bioproducts
as well as its combination with mineral fertilization, so that
they allowed reducing the mineral fertilization applied to crop
under these conditions. According to results, when there are
statistical differences compared to production control,
ecological product combination stimulates plant growth and
crop production. The combined application of mycorrhizaebrassinosteroid
analogues (three times) + 50 % mineral
fertilization enabled to obtain a larger amount of bunches (11.2)
and fruits (21.0) per plant, with a fruiting percentage of 92.4 %,
leading to an agricultural yield of 51.46 t.ha-1, the 50 % mineral
fertilization reduction being significant to be applied under a
protected cultivation system.
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