Coffee seedlings in different substrates and protected environments

Abstract

ABSTRACT:The production of high-quality seedlings is a critical factor for successful implementation of a determined crop in the field. In order to evaluate the production of coffee seedlings, experiments were conducted with different substrates and in different protected environments. Treatments consisted of evaluation of the following substrates: 50% cattle manure + 50% commercial substrate, 50% cattle manure + 50% vermiculite, 50% commercial substrate + 50% vermiculite, 1/3 cattle manure + 1/3 commercial substrate + 1/3 vermiculite, 50% cattle manure + 50% sand, 1/3 sand + 1/3 cattle manure + 1/3 commercial substrate and 50% commercial substrate + 50% sand. These substrates were tested in different protected environments: agricultural greenhouse, mesh screen with 50% shading, aluminized screen with 50% shading, black screen with 30% shading, black screen with 70% shading, nursery with a buriti straw roof and full sunlight. In each environment, the experiments were conducted in a completely randomized design with five replicates of four plants each followed by joint analysis. The substrates containing 50% cattle manure associated with vermiculite or the commercial substrate may be indicated for production of coffee seedlings. Screened environments with 30, 50 and 70% shading resulted in the highest quality seedlings.

Protected Environments and Substrates for Achachairu Seedlings

“…The adaptability of the achachairu in substrates with high amounts of cattle manure are in accordance with the observations by Silva et al (2013) who report that substrates containing 50% of cattle manure associated with vermiculite or commercial substrate can be indicated for the formation of coffee plant seedlings, as well as Costa et al (2014) report that substrates containing 33, 50 and 100% of cattle manure can be indicated in the formation of bocaiúva seedlings (Acrocomia aculeata). TABLE 8.…”

Cortes basais e substratos na formação de mudas clonais de cafeeiro canéfora

“…A adição de resíduos vegetais ao substrato comercial tem a finalidade de reduzir os custos na produção de mudas cafeeiras, além de fornecer maior quantidade de nutrientes e, melhorar as características físicas e químicas do substrato (SILVA et al, 2013). Deste modo, a palha de café em regiões produtoras é considerada como um resíduo orgânico de fácil acessibilidade e baixo valor comercial, constituindo-se numa excelente TABELA 4 -Comprimento do sistema radicular (CR), número de raízes (NR), relação parte aérea raiz (RPAR) e índice de qualidade de Dickson (IDQ) de mudas de C. canephora produzidas a partir de dois tipos de corte no preparo das estacas.…”

“…A escolha do substrato também tem forte influencia na formação da muda de cafeeiro (DIAS;MELO, 2009). Garantir suporte as mudas possibilitando um local firme para o desenvolvimento radicular e principalmente, favorecer as condições químicas, físicas e nutricionais com as quantidades necessárias é a função principal de um bom substrato (CUNHA et al, 2006;SILVA et al, 2013). Compostos orgânicos podem ser utilizados como substratos, possuindo baixo custo, fácil disponibilidade, bom teor de nutrientes, alta capacidade de troca de cátions, esterilidade biológica, boa aeração, retenção de umidade, agregação às raízes (torrão) e uniformidade, ou seja, o uso de materiais alternativos pode gerar economia e proporcionar mudas de excelente qualidade (CORRÊA; BULL; MAUAD, 2009).…”

Modified hydroponics and phenolic foam as technological innovations in the production of coffee seedlings from cuttings

“…On the other hand, in the air-conditioned greenhouse system, the upper part of the phenolic foams was dried, and there was no moistening of this part by capillarity, compromising seedling survival. However, it can be observed in this study that there is a need for changes in the modified hydroponic system and in the irrigation system of the greenhouse so that seedling production by cuttings in phenolic foam has greater adaptability of the methodology (Silva et al, 2013).…”