Substratos e níveis de irrigação na formação de porta-enxerto utilizando limão-cravo
Carregando...
Data
2011-10-06
Autores
Caetano, Mayra Cristina Teixeira [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
O desenvolvimento dos centros urbanos tem conduzido a um aumento desordenado na geração de resíduos e conseqüente poluição ambiental. Tendo em vista o potencial agronômico dos resíduos gerados pelas cidades, o presente trabalho teve por objetivo verificar a influência do composto de lixo (CL), composto de poda de árvore (CP) e substrato comercial (SC), associados a diferentes lâminas de irrigação no desenvolvimento de porta-enxerto (limão-cravo) de citros. O delineamento experimental adotado foi em blocos casualizados em um esquema fatorial 6x3, sendo seis diferentes combinações de substratos: S1 – 100% SC; S2 – 80% SC + 20% CP; S3 – 60% SC + 30% CP + 10% CL; S4 – 40% SC + 40% CP + 20% CL; S5 – 20% SC + 50% CP + 30% CL e S6 – 60% CP + 40% CL associados a três lâminas de irrigação: 50% (I1), 100% (I2) e 150% (I3) da evapotranspiração diária medida pelo atmômetro. Os parâmetros avaliados das plantas foram: altura, número de folhas, diâmetro do caule, matéria fresca aérea e matéria seca aérea. Os resultados permitiram concluir que a irrigação abaixo da evaporação medida pelo atmômetro causaram efeito negativo no desenvolvimento das plantas e que a reposição de água com 150% (I3) foi a que favoreceu o desenvolvimento. Os substratos S2, o qual se utilizou 80% de SC associado à 20% CP foi os que proporcionou melhor desenvolvimento dos porta-enxertos. Os substratos com porcentagem de composto de lixo superior a 30% mostraram-se inadequados para o desenvolvimento dos porta-enxertos
The development of urban centers has led to an inordinate increase in the generation of waste and consequent environmental pollution. Considering the agronomic potential of the waste generated by cities, the present work objective was to check the influence of garbage compound (GC), pruning of tree (PT) and commercial substrate (CS), associated to different irrigation blades in the rootstocks (Rangpur Lime) citros development. The experimental delineation adopted was in random blocks in a fatorial scheme 6x3, being six different substrates combinations: S1 – 100% CS; S2 – 80% CS + 20% PT; S3 – 60% CS + 30% PT + 10% GC; S4 – 40% CS + 40% PT + 20% GC; S5 – 20% CS + 50% PT + 30% GC e S6 – 60% PT + 40% GC associated to different irrigation blades: 50% (I1), 100% (I2) e 150% (I3) of the daily evapotranspiration measured by the atmometer. The evaluated plants parameters were: height, leaves number, stem diameter, fresh matter and dry matter of the air part. The results allowed to conclude that the irrigation below the evaporation measured by the atmometer caused negative effect in the plants development and the water replacement with 150 % (I3) was the one that favored the development. The substrates S2, which is used 80% of SC associated with 20% CP was that the enhanced growth of the rootstocks. The substrates with garbage compound percentage superior to 30 % appeared unsuitable for the rootstocks development
The development of urban centers has led to an inordinate increase in the generation of waste and consequent environmental pollution. Considering the agronomic potential of the waste generated by cities, the present work objective was to check the influence of garbage compound (GC), pruning of tree (PT) and commercial substrate (CS), associated to different irrigation blades in the rootstocks (Rangpur Lime) citros development. The experimental delineation adopted was in random blocks in a fatorial scheme 6x3, being six different substrates combinations: S1 – 100% CS; S2 – 80% CS + 20% PT; S3 – 60% CS + 30% PT + 10% GC; S4 – 40% CS + 40% PT + 20% GC; S5 – 20% CS + 50% PT + 30% GC e S6 – 60% PT + 40% GC associated to different irrigation blades: 50% (I1), 100% (I2) e 150% (I3) of the daily evapotranspiration measured by the atmometer. The evaluated plants parameters were: height, leaves number, stem diameter, fresh matter and dry matter of the air part. The results allowed to conclude that the irrigation below the evaporation measured by the atmometer caused negative effect in the plants development and the water replacement with 150 % (I3) was the one that favored the development. The substrates S2, which is used 80% of SC associated with 20% CP was that the enhanced growth of the rootstocks. The substrates with garbage compound percentage superior to 30 % appeared unsuitable for the rootstocks development
Descrição
Palavras-chave
Irrigação, Composto de lixo, Composto de poda de árvore, Garbage compound, Irrigation
Como citar
CAETANO, Mayra Cristina Teixeira. Substratos e níveis de irrigação na formação de porta-enxerto utilizando limão-cravo. 2011. ix, 56 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2011.