Drill cuttings from oil exploration improve properties of substrate and growth of Ipê-branco ( Tabebuia roseoalba ) seedlings

• DOI: 10.36783/18069657rbcs20240009
• Publication Date: 2024-10-23T16:05:05Z
• Authors: Victória Maria Mo...; Dione Richer Momolli; Alan Henrique Mar...; Júlio César Ribeiro; Marcos Vinicius W...; Jorge Makhlouta A...; Deivid Lopes Machado; Gilsonley Lopes d...; Heraldo Namorato ...; Everaldo Zonta; Marcos Gervasio P...
• Keywords: Cutting; Drill cuttings

ABSTRACT More information is needed on the potential of using drill cuttings (crushed rocks) from oil industry in agriculture and forestry. An experiment forest nursery was carried out to evaluate influence substrates formulated onshore gravel characteristics Ipê-branco (Tabebuia roseoalba) seedlings (i.e., growth, quality, nutrition). We used five gravimetric proportions mixed with Pinus-bark - commercial substrate (Mecplant® Florestal 3): control only zero (G0), 2.5 % (G2.5), 5 (G5), 7.5 (G7.5), 10 (G10). In general, high proportion increases density decrease current moisture total porosity substrates. The G2.5, G5 G7.5 significantly contributed available water readily these substrates, percentage values ranging 23 – 30 higher than G10 substrate. Increasing generally resulted increased pH levels, P, Na, K metals (Cu, Fe, Ni, Mn, Cd, Zn, Cr Pb), except for Ca Mg nutrients that decreased. Heavy metal contents all did not exceed permissible legal standards. G2.5 by 20 approximately stem diameter height seedlings, also affected root dry mass Dickson quality index, two times G0 Multivariate analysis proved suitable as a complementary approach seedling quality. Drilling addition, accumulation heavy provided greatest Ca, Pb Zn shoot, while N, Cr, Mn root. Adding conditioning component at viable alternative this residue produce high-quality Tabebuia roseoalba seedling.