Acúmulo e partição de massa seca da alface cultivada em diferentes substratos
This work was carried with to evaluate the accumulation dry matter in lettuce in greenhouse, cultivated in substrates with different fertirrigation intervals. Completely randomized design was adopted in factorial scheme 7x3, with three repetitions. The treatments tested were constituted of combinati...
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| Published in: | Revista verde de agroecologia e desenvolvimento sustentável Vol. 6; no. 4 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English Portuguese |
| Published: |
Grupo Verde de Agroecologia e Abelhas (GVAA)
01-11-2011
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | This work was carried with to evaluate the accumulation dry matter in lettuce in greenhouse, cultivated
in substrates with different fertirrigation intervals. Completely randomized design was adopted in factorial scheme 7x3,
with three repetitions. The treatments tested were constituted of combination seven substrates (Sand, Fiber coconut,
Vermiculite, Fiber coconut, Wood sawdust, Sand + Wood sawdust (1:1), Vermiculite + Wood sawdust (1:1), Fiber
coconut + Wood sawdust (1:1)), with three intervals fertirrigation (F1-1 day, F2-2 days and F3- 4 days). The plants were
cultivated in containers with capacity of 4 dm3 de substrate, and collected 35 DAT and evaluated know accumulation
and partition dry matter between aerial part and root system. The substrates sandy and fiber coconut were more
promising to production lettuce this conditions. The daily fertirrigation provide development larger of lettuce cultivated
in substrates. The plants cultivated in sandy and fiber coconut association the daily fertirrigation showed larger
development aerial part in relation root system.
Este trabalho foi conduzido objetivando avaliar o acúmulo de massa seca da alface em ambiente
protegido, cultivada em diferentes substratos e intervalos de fertirrigação. Adotou-se o delineamento experimental
inteiramente casualizados, em esquema fatorial 7 x 3, com três repetições. Os tratamentos testados foram constituídos
da combinação de sete substratos (Areia, Vermiculita, Fibra de coco, Serragem de madeira, Areia + Serragem (1:1),
Vermiculita + Serragem (1:1) e Fibra de coco + Serragem (1:1)), com 3 intervalos de fertirrigação (F1-diária, F2-2 dias e
F3-4 dias). As plantas foram cultivadas em vasos plásticos com capacidade para 4 dm3
de substrato, e foram coletadas
aos 35 dias após o transplantio e avaliadas quanto ao acúmulo e a partição de massa seca entre parte aérea e o sistema
radicular. As plantas cultivadas em areia e fibra de coco associados à fertirrigação diária tiveram maior
desenvolvimento da parte aérea em relação ao sistema radicular. |
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| ISSN: | 1981-8203 1981-8203 |