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Substratos orgânicos para a produção de mudas de Tabebuia heptaphylla irrigadas com água potável e residuária

Authors: Caetano, Mayra Cristina Teixeira;

Substratos orgânicos para a produção de mudas de Tabebuia heptaphylla irrigadas com água potável e residuária

Abstract

É importante estudar compostos orgânicos na produção de mudas de T. heptaphylla, principalmente com resíduos considerados problemáticos como compostos a base de lixo urbano e restos vegetais oriundos de podas de árvores, bem como o tipo de água de irrigação utilizada. Com o trabalho o objetivo é analisar os substratos formados pela associação de doses de composto de lixo urbano e composto de poda de árvore, em condição de irrigação com água residuária e potável, nas características biométricas e na composição química foliar das mudas de Tabebuia heptaphylla. O delineamento experimental adotado foi em blocos casualizados em um esquema fatorial 8x2, sendo oito combinações de substratos (S): T1 (100% substrato comercial); T2 (100% C.P.A.); T3 (5% C.L. + 95% C.P.A.); T4 (10% C.L. + 90% C.P.A.); T5 (20% C.L. + 80% C.P.A.); T6 (40% C.L. + 60% C.P.A.); T7 (60% C.L. + 40% C.P.A.); e T8 (100% C.L.), associadas a irrigações com dois tipos de água (residuária e potável). As variáveis avaliadas foram: altura da parte aérea, diâmetro do coleto, massa de matéria seca da parte aérea e análise química foliar para determinação da concentração de macronutrientes. Os tratamentos que proporcionaram o melhor desenvolvimento das mudas de Tabebuia heptaphylla, foram os tratamentos 4 (10% CL + 90% CPA), 5 (20% CL + 80% CPA) e 6 (40% CL + 60% CPA). Sendo assim, os resultados permitem concluir que as combinações entre o composto de árvore e de lixo proporcionam resultados satisfatórios no desenvolvimento das mudas e que a utilização da água residuária influencia positivamente no desenvolvimento destas.

It is important to study organic compounds in the production of T. heptaphylla seedlings, especially with problematic considered as waste compounds to urban waste -based and plant remains derived from tree pruning, as well as the type of irrigation water used. The aim of this work was to analyze the biometric characteristics and the chemical composition of T. heptaphylla seedlings developed on different substrates formed by the association between different doses of urban waste compounds (CL) and compost of prunings trees (CPA) in irrigation condition with wastewater and drinking water. The experimental design was a randomized block in a 8x2 factorial design, with eight different combinations of substrates (S): S1 (100%) commercial substrate); S2 (C.P.A. 100%); S3 (5% + 95% C.L. C.P.A.); S4 (10% + 90% C.L. C.P.A.); S5 (20% + 80% C.L. C.P.A.); S6 (40% + 60% C.L. C.P.A.); S7 (60% + 40% C.L. C.P.A.); and S8 (100% C.L.) and with irrigation with two types of water (wastewater and potable). We evaluated the shoot height, stem diameter and leaf analysis to determine the concentration of macronutrients. Treatments that provided the best development of Tabebuia heptaphylla were treatments 4 (10% CL + 90 % CPA ), 5 (20 % CL + 80 % CPA) and 6 ( 40 % CL + 60 % CPA ) . The results obtained allow to conclude that the combination of the compound of tree and garbage provide satisfactory results development of the seedlings and the use of wastewater positively influences the development of these.

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Country
Brazil
Keywords

Purple ipe, Compostcompost pruning trees, Composto de poda de árvores, Composto de lixo, Ipê roxo

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green