Produção e qualidade de morangueiro sob diferentes concentrações de calda bordalesa, sulfocálcica e biofertilizante supermagro

Bovine manure biofertilizers can exert physical, chemical, and biological effects on the soil and the phytoprotective, physiological, and productive actions in horticultural crops. The literature review was performed to compile information on the production, uses, and effects of bovine manure biofertilizers on soil properties and plants. Biofertilizers are produced by organic components, minerals, and inoculants. Among the organic sources, the bovine manure is the most used. The fermentation of the bovine manure in water constitutes the Vairo biofertilizer, the most employed in Brazilian horticulture. With the chemical enrichment of this preparation came the Supermagro, Agrobio, and Agrobom biofertilizers. In the soil, it can act in the improvement of soil fertility, physical properties, and in the diversity and abundance of the biota. Also, it can act in control of pests and diseases, leaf composition concerning macro and micronutrients, and in the production and post-harvest quality of horticultural crops. Therefore, this review describes the preparation, chemical composition, and utilization of bovine manure biofertilizers in both soil and plants, offering perspectives of research on the formulations, application, and effects of these inputs on horticultural species.

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Biofertilizers in horticultural crops

Cavalcante

Bezerra

Souto

et al. 2019

Com. Sci.

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Efecto de 3 formas de fertilización en cultivo de Maíz variedad DAS 3383, La Troncal-Ecuador

Rodríguez

Landin

Galarza

et al. 2020

Rev Colombiana Cienc Anim. RECIA

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Se evaluó el efecto de 3 formas de fertilización vía edáfica, en maíz (Zea mays) variedad DAS 3383, sobre las variables (Altura de planta 30, 60, 90 DDS (cm); Altura de inserción de mazorca 70 DDS (cm); Longitud de mazorca (cm); Diámetro de mazorca (cm); Hileras de grano por mazorca; Peso 1000 granos (g); Relación Tusa/Grano; Rendimiento (Kg/ha-1); Análisis económico). Los tratamientos fueron: T1= Fertilizante enriquecido supermagro: día 8 (25%), día 23 (25%), día 38 (50%); T2= Fertilizante convencional 30 g/planta: día 8 (8-20-20% NPK), día 23 (15-3-20% NPK), día 38 (21-0-24% NPK); T3= Testigo (Sin fertilizante), con 4 repeticiones. El experimento se realizó en la Hacienda “Las Mercedes” del cantón La Troncal-Ecuador, duró 130 días, bajo un Diseño de Bloques Completamente Aleatorizado (DBCA), el análisis de datos se realizó a través del ANOVA, con la prueba de Tukey con (p<0.05), los cálculos se realizaron en el Paquete Estadístico InfoStaf versión 2019. Los resultados mostraron diferencias significativas a favor del tratamiento (T2) Fertilizante Convencional para las variables altura de la planta día 30 con 96.40 cm, altura inserción de la mazorca 70 días con 89.05 cm, diámetro de la mazorca 4.76 cm, peso de los 1000 granos 340.25 gramos y rendimiento de 9.67 Ton/ha, siendo este mismo que en el análisis económico determinó la mejor tasa de retorno marginal, dejando una tasa marginal del 9.08% representando que por cada U$ 1.00 invertido el productor puede recobrar su dólar invertido y obtener U$ 0.09 adicional.

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Alternative products on the control of asian rust soybean

Zorzzi

Cruz

Dalacosta³

et al. 2021

RSD

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In recent years, it has been observed a significant expansion of the organic market. In this context, the main phytosanitary problem of soybean in the organic system is Asian rust (Phakopsora pachyrhizi), for which it is difficult to control, considering the restriction of products authorized for use in the organic system and the limitation of research related to this management system. The objective of this study was to evaluate the effect of alternative products on the germination of uredospores, on the severity of soybean rust on detached leaves and the control of the disease under greenhouse and field conditions. The alternative treatments were calcium silicate, lime sulphur, bordeaux mixture, and copper oxychloride. The variables analyzed were uredospores germination, disease severity, defoliation level, area under the disease progress curve (AUDPC), a thousand grain mass and productivity. The results obtained indicate that there is a possibility of using copper oxychloride to manage the Asian rust in organic production systems. Copper oxychloride had reduced the germination of uredospores and when evaluated under controlled conditions using detached leaves and greenhouse, it had reduced the severity of the disease. In field conditions, copper oxychloride at the doses of 588 and 882 g ha-1 reduced severity and AUDPC, in addition to increasing productivity at 1434 kg ha-1 in relation to the control. It is concluded that copper oxychloride can be used as a tool in the management of Asian rust in organic systems of soy production.

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Produção e qualidade de morangueiro sob diferentes concentrações de calda bordalesa, sulfocálcica e biofertilizante supermagro

Cited by 3 publications

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Biofertilizers in horticultural crops

Biofertilizers in horticultural crops

Efecto de 3 formas de fertilización en cultivo de Maíz variedad DAS 3383, La Troncal-Ecuador

Alternative products on the control of asian rust soybean

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