CULTIVATION OF Caesalpiniapulcherrima L. Sw. IN REGIONAL SUBSTRATES

Abstract

The objective of the present research was to evaluate different types and proportions of organic wates and soil classes for substrate formulation for Caesalpinia pulcherrima cultivation. The experiment was performed in a greenhouse, and treatments were composed by two soil classes (Oxisol and Entisols), three types of residues (organic compound from pruning + manure, urban waste compost and residue from the extraction of Agave sisalana fibers) and five residue:soil proportions (0:100, 20:80, 40:60, 60:40, 80:20, v/v). Plant height, stem diameter, number of leaves, rates of a, b and total chlorophyll, leaf area, root length, shoots and roots dry weight and the Dickson Quality Index were evaluated 90 days after sowing. All three types of residues evaluated showed potential to be used in the elaboration of growth substrates for the production of C. pulcherrima L. Sw. seedlings. The substrates formulated with 33%, 23% or 5% of organic tree pruning + animal manure, urban waste compost and residue of the Agave sisalana fiber extraction, respectively, promoted better quality of seedlings 90 days after sowing, regardless of the soil class.

Emergência de plântulas e vigor de sementes de Anadenanthera colubrina (Vell.) Brenan (Fabaceae) em diferentes substratos e profundidades de semeadura

“…Santos (2019), estudando o efeito de substratos comerciais na produção de mudas de Caesalpinia pulcherrima (L.) Sw (Fabaceae), constatou que houve uma resposta positiva das plantas aos substratos com maior quantidade de nutrientes, e menor desenvolvimento das plantas no substrato que continha baixos níveis de nutrientes. De tal modo, Moreira et al (2018), avaliando a produção de mudas dessa mesma espécie em substratos formulados com resíduos orgânicos, também verificaram que a elevação dos teores de macro e micronutrientes resultou em maior crescimento da planta.…”

SEED EMERGENCE AND DEVELOPMENT OF Caesalpinia pulcherrima L. SW. AND Cassia grandis L. F. IN ORGANIC SUBSTRATES

“…This species is native to the tropical and sub-tropical regions of the Americas and belongs to the Fabaceae family, bein well adapted to the soil and climatic conditions in Brazil (Lorenzi et al, 2003). The specie responds to fertilization, once seedlings with better morphophysiological characetrs were obtained after organic fertilization using organic compost obtained from sisal's fiber, cattle manure or urban wastes (Moreira et al, 2018). Cassia grandis L. f., commonly known as pink shower tree, rose acacia, canafistula or big acacia, is considered a species with potential for timber or reforestation of marginal lands and degraded soils.…”

“…In order to select cultivation substrates one must consider its efficiency by supplying favorable conditions for plant growth such as water availability, aeration, balanced pH, adequate salinity, besides the capacity to supply nutrients. Organic residues, when added in adequate proportions to formulate substrates with soil, render positive results on germination and growth of seedlings by providing benefits to the physical and chemical attributes of the soil (Moreira et al, 2018;Braulio et al, 2019;Moreira et al, 2021). Among these residues are the sewage sludge (Delarmelina et al, 2013), urban waste compost (Silva et al, 2014) and cattle manure compost Braulio et al, 2019;Moreira et al, 2021).…”

ORGANIC RESIDUES IN THE COMPOSITION OF SUBSTRATES ENRICHED WITH BOKASHI BIOFERTILIZER FOR THE SUSTAINABLE PRODUCTION OF Copaifera langsdorffii SEEDLINGS

“…Thus, it is of the utmost importance to produce seedlings to a high standard of quality and aiming at a productive, economically feasible and environmentally sustainable production process. In this sense, the use of organic residues in substrate composition is a feasible alternative to produce forest tree species seedlings (Moreira et al, 2018;Mayer et al, 2010;Nóbrega et al, 2008), but it requires research to optimize the quality seedling production process.…”