Distribuição espacial do sistema radicular de plantas de pinhão manso
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Data
2014
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Resumo
Brazilian government has supported the production of biodiesel in the country,
through of its blend with diesel. So, for that there is no competition with the oil industry of food,
oilseeds new species has been investigated as alternative sources for oil production. Among
these, nut plant (Jatropha curcas L.) has great potential production, mainly by family farmers.
However, are rare technical information about this crop, including the root system distribution.
Roots characteristics are of high importance to work with plants in the field, especially to
irrigation and fertilization management. So, aimed to evaluate the distribution of the root system
of nut plants in soil and climatic conditions of the Brazilian Savanna "Cerrado". Three plants
were used in 17-month-old plants and three with 36-month old, cultivated in Goiânia-GO and
Porangatu-GO, respectively. In both experiments the plants were spaced 3 x 2 m, and soil
cultivation was a Hapludox. For the evaluations were sampled volumes of soil by monolith
method, at five depths: 0.0 to 0.30, 0.30 to 0.60, 0.60 to 0.90, 0.90 to 1.20 and 1.2 to 1.5 m, and
also the five distances from the stem: 0.0 to 0.25, 0.25 to 0.50, 0.50 to 0.75, 0.75 to 1.0 and 1.0 to
1.25 m. The results showed that 80% of the roots are at 0.60 m of depth and at 0.75 m horizontal
distance from the trunk in young plants, and 1.0 m depth and 1.0 m horizontal distance in adult
plants.
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Bicombustível, Rizosfera, Jatropha curcas L., Biofuel, Rhizosphere, Jatropha curcas L.
Citação
ALVES JR., José; ARAÚJO, Fausto Jaime Miranda; EVANGELISTA, Adão Wagner Pêgo; CASAROLI, Derblai; VELLAME, Lucas Melo. Distribuição espacial do sistema radicular de plantas de pinhão manso. Revista Agrotecnologia, Anápolis, v. 5, n. 1, p. 50-61, 2014.