Abstract
ABSTRACT The objective of this work was to evaluate the quality of chicory seedlings in organic substrata and their influence on yield and commercial yield in a protected environment and under direct sunlight. Seedling and field production experiments were conducted in a randomized block design with four blocks. In the first experiment, seedlings were produced on substrata by alternating the conditioner: 1) dry coconut fiber + blend (soil, organic compost, charcoal); 2) carbonized rice husk + blend; 3) crushed ouricuri stem + blend; 4) decomposed kapok stem + blend and 5) commercial substratum. Sufficient seedlings were produced for the evaluations and transplantation. In the field phase, two experiments were evaluated, one in a protected environment and another under direct sunlight. The commercial and ouricuri substrata produced seedlings with the same quality and biomass index, but above to the others. The yield (0.89 kg m-2) and commercial yield (68.29 packs m-2) in the protected environment are not affected by seedling quality. In the direct sunlight cultivation, the yield is higher when using seedlings produced with the commercial (0.75 kg m-2), ouricuri (1.07 kg m-2), or kapok substrata (0.74 kg m-2).
Highlights
O objetivo deste trabalho foi avaliar a qualidade de mudas de chicória em substratos orgânicos e sua influência sobre a produtividade e rendimento comercial em cultivo protegido e pleno sol
Chicory (Eryngium foetidum) is a plant species belonging to the Apiaceae family, native to tropical regions of Central and South America (Morales-Payán et al, 2013)
In spite of its great importance as a non-conventional vegetable, studies related to seedling production and cultivation of chicory are still scarce given the low technological level and the few technical recommendations to the crop, resulting in low production efficiency, high commercial value, and little availability
Summary
O objetivo deste trabalho foi avaliar a qualidade de mudas de chicória em substratos orgânicos e sua influência sobre a produtividade e rendimento comercial em cultivo protegido e pleno sol. Mudas foram produzidas em substratos alternando o condicionador: 1) fibra de coco seco + mistura (solo, composto orgânico, carvão vegetal); 2) casca de arroz carbonizada + mistura; 3) caule triturado de ouricuri + mistura; 4) caule decomposto de sumaúma + mistura e 5) substrato comercial. No cultivo a pleno sol, a produtividade é maior quando se utiliza mudas produzidas com os substratos comercial (0,75 kg m-2) ou ouricuri (1,07 kg m-2) ou sumaúma (0,74 kg m-2). In spite of its great importance as a non-conventional vegetable, studies related to seedling production and cultivation of chicory are still scarce given the low technological level and the few technical recommendations to the crop, resulting in low production efficiency, high commercial value, and little availability. There is no available material with all the required characteristics for plant development, justifying the need for research (Cerqueira et al, 2015) aiming at alternative substrata that fit the economic needs of the producer and the phytotechnical demands of the crop (Ferraz et al, 2014; Ferreira et al, 2017)
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