Biofertilizers in horticultural crops

Abstract

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.

Productivity and photosynthetic pigments in bell pepper plants grown in soil with biofertilizer and protected against water loss

“…The chemically enriched biofertilizer was obtained by anaerobic fermentation of a mixture of equal volumes of fresh manure and water (not saline or chlorinated), 1% MB-4 rock powder (17.82% of Mg 2+ ), 1% ash (13.61 cmol c dm -3 of K + ), 1% brown sugar and 1% milk in a polyethylene biodigester with a capacity of 240 L. This container was kept in the shade and hermetically sealed for 30 days. During this preparation period, homogenization by agitation occurred every 24 h for better efficiency of fermentation (Cavalcante et al, 2019). To release the gas produced by fermentation, a hose was connected to the top of the container that, along with the other extremities, was kept submerged in a container with water to prevent air from entering.…”

Urina de vaca como biopesticida e biorrepelente: revisão sistemática da literatura

“…O contínuo e exagerado uso de agroquímicos e fertilizantes sintéticos, por vezes, tem conduzido a fatores físicos, químicos e biológicos de degradação dos solos, da água e da atmosfera, em áreas agrícolas e em ambientes naturais (Cavalcante et al, 2019). Problemas como a degradação dos recursos em ambientes agrícolas e naturais, causados pelo modelo convencional de produção agrícola, podem ser considerados como externalidades negativas deste sistema (Araújo, 2010).…”

“…A urina de vaca pode ser benéfica quando usada como biofertilizante, pois as substâncias em sua composição possibilitam o controle de insetos, ácaros e moléstias ocasionadas por microrganismos como fungos e bactérias (Cavalcante et al, 2019). Os efeitos benéficos dos biofertilizantes derivam da presença e ação de metabólitos produzidos pela microbiota existente no insumo orgânico e por meio da ação direta do patógeno em seu hospedeiro (Santos, 1995;Marrocos et al, 2012).…”

Cucumber production under organic cultivation in response to biofertilizer application

“…The Brazilian production of cucumber surpasses 200,000 t per year, especially in the Southeast region (58.5%), followed by the South (17%) and North regions (11%) (IBGE, 2017). This production relies on the excessive use of mineral fertilizers and synthetic agrochemicals, which, besides burdening production costs, leads to processes of physical, chemical, and biological degradation of the soil, as well as contamination of air, water, and of the food itself (Cavalcante et al, 2019).…”