TANNING OF SLUDGE AND ITS INFLUENCE ON THE PRODUCTION OF SEEDLINGS PARICÁ (Schizolobium amazonicum) AND THE CHEMICAL PROPERTIES OF SOIL

Ciência Florestal

Walcylene Lacerda M. P. Scaramuzza¹  Franciele Caroline de Assis Valadão¹  Kelly Dayana Benedet Maas¹  Oscarlina Lúcia dos Santos Weber¹  Lorena de Souza Tavares² 

[1] ;Universidade Federal de Santa Maria, Santa Maria, RS;

关键词: resíduo industrial;    cromo;    nutrição florestal;    salinização do solo;   

DOI  :  10.5902/1980509810547

来源: DOAJ

【 摘 要 】

http://dx.doi.org/10.5902/1980509810547

The objective of this study was to assess the influence of the tanning sludge in soil chemical properties and the morphological and nutritional ‘paricá’ seedlings. The experiment was conducted in a greenhouse in a completely randomized design with five replicates, having as a substrate Humic Cambisol, which was characterized chemically and granulometrically, in possession of these results, the soil was previously corrected with lime and NPK. After 100 days of observation, it was analyzed the soil chemical variables (pH, H + Al, Al³⁺, Ca, Mg, P, K, Na, S, Cr³⁺, CO, SB, CEC, V, RAS and PST), the morphology plant [height (H), stem diameter (DC), the number of full sheets, the main root length (CR) and dry biomass], and the concentrations of N, P, K, Ca, Mg , S, Cr³⁺ and Na in the plant. The tanning sludge was used as a nutritional supplement in doses of 0.0, 1.5, 3.0, 4.5 and 6.0 g kg^-1. The tanning sludge has potential as a corrective of soil acidity, with little significant increase in indicators of salinity, sodicity and Cr³⁺ content available. However, the use of sludge did not affect the morphological characteristics of seedlings ‘paricá’, but induced an increase in levels K and S in the shoot and Na and S in the root. The greatestconcentration of nutrients in ‘paricá’ were obtained with 6.0 g

【 授权许可】

Unknown