Carbonized rice hull as substratum to produce tamboril-da-mata and garapeira seedlings
DOI:
https://doi.org/10.5433/1679-0359.2009v30n4Sup1p1173Keywords:
Enterolobium contortisiliquum (Vell.) Morong, Apuleia leiocarpa (Vogel) JF Macbr, Forest seeds, QualityAbstract
The production of forest seedlings, in quantity and quality, is one of the most important steps for the establishment of good stands with native species. Therefore, the substrate is the factor that makes a significant influence in the development of seedlings and many materials can be used in its original composition or combined. This work focus on evaluating the influence of carbonized rice hull as substrate for the production of seedlings of Enterolobium contortisiliquum (Vell.) Morong) and Apuleia leiocarpa (Vogel) JF Macbr.). The experiment was accomplished in Santa Maria-RS. The experiment had a completely randomized design, with 5 treatments (T1: 0% carbonized rice hull + 100% soil; T2: 25% carbonized rice hull + 75% soil; T3: 50% carbonized rice hull + 50% soil; T4: 75% carbonized rice hull + 25% soil; T5: 100% carbonized rice hull + 0% de soil), and 5 replications and 10 plants per plot. Carbonized rice hull influenced the development of both species. High proportions of carbonized rice hull produced Apuleia leiocarpa seedlings with had bad development. However, to produce seedlings of Enterolobium contortisiliquum to an adequate standard of quality it is recommended to use 50% of carbonized rice hull+ 50% of soil.
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