João Antonio Galbiatti,Reginaldo Itiro Muraishi,Dayuna Bemi Barense,Marcelo Boamorte Raveli,José Roberto Micali Junior,Adivania de Souza Borges Nicoletti, FCAV/UNESP, Engenharia Rural, galbi@fcav.unesp.br
RESUMO:
O experimento foi instalado no setor de plasticultura do Departamento de Engenharia Rural da Faculdade de Ciências Agrárias e Veterinárias – UNESP, Campus de Jaboticabal. Foram realizados 2 experimentos, avaliados conjuntamente com delineamento experimental em blocos casualizados, de 8 substratos, 2 qualidades de águas e 4 repetições, totalizando 64 parcelas. Cada parcela foi composta por 30 plantas (5 linhas de 6 plantas), sendo consideradas como úteis, as 3 linhas de 4 plantas centrais da parcela. Para estudar o desenvolvimento das mudas de ipê amarelo, foram avaliadas a altura da parte aérea das plantas (H), diâmetro do caule (D), matéria seca (MS). As características de desenvolvimentos foram avaliadas aos 21, 42, 63 e 84 dias após a emergência das plantas. A análise dos resultados apresenta diferenças significativas para altura das plantas, diâmetro de caule e acúmulo de matéria seca. Houve interação positiva entre substrato e água de irrigação, para altura média das plantas e diâmetro médio de caule aos 42, 63 e 84 dias após emergência e em todos nutrientes foliar. Os substratos 3 (5% composto lixo + 95% composto de poda, 4 (10% composto de lixo +90% composto de poda) e 5 (20% de composto de lixo + 80% composto de poda) e água servida apresentaram os melhores resultados no desenvolvimento das mudas de ipê amarelo.
Palavras chave: substratos, composto de lixo, composto de poda, água servida.
WASTEWATER USE OF ORGANIC COMPOUNDS ASSOCIATED WITH THE FORMATION OF SEEDLINGS OF YELLOW IPE (TABEBUIA CRYSOTRICHA MART. EX. DC STANDL)
ABSTRACT:
The experiment was installed at the Department of Rural Engineering of de São Paulo University State, Campus of Jaboticabal. Two experiments were conducted, evaluated together with experimental design in randomized blocks of 8 substrates, 2 qualities of water and 4 repetitions, totaling 64 parcels. Each parcel was composed of 30 plants (5 rows of 6 plants) and is regarded as useful, the 3 lines of 4 plants of the central plot. Eight substrates were tested, resulting from the combination of commercial substrate, composed of household waste and composed of pruning of trees with 2 types of irrigation water (clean water and residuary) and 4 repetitions. To observe the development of seedlings of yellow-ipe, were evaluated the height of the shoots of plants, diameter of the stem and dry material. The characteristics were evaluated at 21, 42, 63 and 84 days after the emergency. The analysis of results allowed to conclude that the substrates studied promoted significant differences in average height of the plants, stem diameter, dry material and leaf analysis in all periods of assessment. The interaction between substrate and water for irrigation were to average height and diameter of the plant stem at 42, 63 and 84 days after emergency and in all of leaf analysis nutrients. The substrates 3, 4 and 5 with residuary water showed the best results in the development of seedlings of yellow-ipe.
Keywords: substrates, waste composed, residuary water.