Different Substrates in Seedling Production of Caesalpinia pyramidalis Tul

Abstract

The use of native species for the recovery of degraded areas has been of great relevance, however, there is a deficiency in studies aimed at the Northeast region of Brazil, which presents one of the largest areas under desertification in the South American continent. The region has a diverse native flora of high cultural and economic relevance such as Caesalpinia pyramidalis Tul, popularly known as catingueira that stands out for the rusticity and use in diverse areas medicinal, logging, cultural, animal feeding, among others. The objective of this work was to evaluate the effects of chemical fertilisation on different substrate sources on the emergence and initial growth of Caesalpinia pyramidalis seedlings. For the constitution of the substrates samples, Yellow Oxisol distrocoeso were collected at 0.50 m depth and superfine vermiculite. Also organic manure and organic compound were used. The emergence and morphological features (area and total dry mass, height, diameter, chlorophyll A and B) were evaluated. The seedlings of Caesalpinia pyramidalis placed on substrates consisting of organic compound in the ratio 1:1:1 (compound: soil: vermiculite) and 2:1:1 (compound: soil: vermiculite) and cattle manure 2:1:1 (manure: soil: vermiculite) generated satisfactory results for the development of the crop. There was no interaction (p> 0.05) between the addition of NPK and the types of substrates evaluated for the studied variables.