Efeito da compactação do solo no desenvolvimento aéreo e radicular do pinhão manso (Jatropha curcas L.) e crambe (Crambe abyssinica Hochst)
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Data
2012-08
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Resumo
The Jatropha curcas and crambe are species with potential for using as raw material in
biodiesel production. The compaction or increased density of the soil may limit the growth and
development of shoot and roots. The objective of this study was to evaluate shoot and root
development of two oilseed species Jatropha (Jatropha curcas L.) and crambe (Crambe abyssinica)
subjected to five levels of compression. The experiment was conducted in greenhouse in Oxisol of
medium texture. The columns of PVC overlaid with three divisions (lower and upper compressed),
where only the central part of the soil was compacted. Levels of compression of the cylinders followed
the following densities of 1.14, 1.25, 1.37, 1.47 and 1.58 Mg m -3 . At 50 days after plant emergence,
were determined: the height, shoot dry bulk, stem diameter and root dry bulk in the three individual
parts of the cylinder. The increase in soil bulk density did not affect negatively the growth and
development of root and shoot of Jatropha curcas. However, crambe was sensitive to soil compaction
in relation to the diameter of the shoot and root dry bulk in the compacted layer and bottom of the
cylinder.
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Sistema radicular, Densidade do solo, Oleaginosa, Root system, Oilseed, Soil density
Citação
SILVA, Samuel de Deus da; ALVES, José Milton; MESQUITA, Glaucia Machado; LEANDRO, Wilson Mozena. Efeito da compactação do solo no desenvolvimento aéreo e radicular do pinhão manso (Jatropha curcas L.) e crambe (Crambe abyssinica Hochst). Global Science and Technology, Rio Verde, v. 5, n. 2, p. 87-97, maio/ago. 2012.