Efecto de biochar y fertilizantes sobre las propiedades físicas y químicas del suelo, desarrollo radical y componentes de rendimiento en arroz

Biochar is a technological alternative that has been applied in soils that are constantly produced, since it improves the physical-chemical characteristics of the soil, as well as helps to retain moisture and improves its aeration. This research aimed to evaluate the effect of biochar and fertilizers on the physical and chemical properties of the soil, root development and yield components in rice. The results obtained in the physical analyzes show different ranges of pH and apparent density, with the initial sample and with the treatments that obtained the different doses of biochar, likewise it was presented in the chemical analyzes obtaining low levels, unlike the other elements. (P, K, S, Ca, Mg, Fe, Cu and Mn) that have high levels, zinc was present in all treatments at medium levels. Significant results (p≤0.05) were obtained, with the combination of biochar and complete fertilization, obtaining in T4 (3.0% biochar + complete fertilization) a root length of 38.25 cm, in T1 (0% Biochar without fertilization) presented 19.50 g of root dry weight. In the variable of panicle number per plants, T2 (1% Biochar with complete fertilization) obtained the highest average with 27.25 panicles, on the other hand, the number of grain per panicle with 100.75 gr was in T2 (0% Biochar with fertilization), followed by T4 (3.0% biochar with complete fertilization) with 99.00 g, significant differences were also found in the production of grains by Kg plants than in the treatments with complete fertilization.

• Autor principal: Muñoz Vélez, María José (author)
• Formato: bachelorThesis
• Idioma: spa
• Publicado em: 2021
• Assuntos: Biochar; Fertilizantes; Residuos de cacao
• Acesso em linha: http://repositorio.espam.edu.ec/handle/42000/1543