Several economies have acknowledged that environmental degradation poses a serious danger to worldwide sustainable production and consumption. Policy makers concur that the increased use and production of carbon-intensive technologies has intensified the detrimental consequences of carbon dioxide emissions. In response, a number of nations have reacted by enacting stringent regulations and encouraging green technology innovations across corporate and governmental organizations. Evidence that already exists suggests that research and development is a cyclical process; nevertheless, the non-linear influence of shocks in research and development and innovation in green technologies on CO₂ emissions in the Nordic nations has not been well investigated. Using panel data from 1995 to 2019, this research explores the asymmetric link between innovation in green technologies and CO₂ emissions. The cointegration link between the chosen variables was validated using the Westerlund cointegration test and the Johansen–Fisher panel cointegration test. The findings of both tests confirm the presence of cointegration association between dependent and independent variables. The outcomes of CS-ARDL revealed that negative shocks in creating green technologies contribute to carbon dioxide emissions during recessions. Second, the findings supported the notion that innovation in green technology may reduce carbon dioxide emissions during times of economic expansion. Thirdly, the GDP increases the CO₂ emissions, but the usage of renewable energy decreases CO₂ emissions. In addition, the robustness analysis validated the consistency and precision of the existing findings. In summary, the findings suggest that the link between advances in environmentally friendly technologies and levels of carbon dioxide emissions were inversely proportional.

Soil is the base of any ecosystem since it conserves nutrients and water for plant roots including agriculture and plantations. In dry and semi-arid places across the world, including the UAE, sandy soils are common. Their fertility is extremely low, and production is hampered by a number of agronomic challenges. Soil conditioner sources like bentonite and chicken manure might be used to improve the poor sandy soil attributes and hence boost soil productivity. From November 2019 to March 2020, an experiment was conducted to investigate the growth rates of Bougainvillea following bentonite and chicken manure amendments to sandy soil taken from Lehbab, Dubai. Bougainvillea was evaluated for its plant height (cm), max length of primary branch (cm), the number of leaves per plant, number of secondary branches, shoot weight (g), root length (cm), root weight (g), root/shoot ratio, chlorophyll contents, and chlorophyll a* and b*. In this experiment, a complete randomized design (CRD) with five treatments was used (10 replications per treatment). According to the findings, bentonite and chicken manure additions considerably influence the productive properties of sandy soil, as indicated by Bougainvillea growth. Additionally, the research suggests that Bougainvillea may be efficiently planted with 10% bentonite and 15% chicken manure applied to sandy soil, resulting in the healthiest plants compared to other amendments.

Less precipitation, high temperature, and minimal natural vegetation are characteristic of regions having an arid climate. The harsh environment massively destructs the soil structure of that area by burning soil organic carbon, leading to deteriorated soil nutritional quality, creating a significant threat to agricultural production and food security. Direct application of organic wastes not only substitutes lost organic carbon but also restores soil structure and fertility. This study was conducted to assess the impact of organic amendments, i.e., farm manure (FM), poultry manure (PM), molasses (MO), and Exo-Poly Saccharides (EPS) producing rhizobacterial strains i.e., M₂, M₁₉, M₂₂ amalgams as treatments. To assess the impact of treatments on soil carbon and structure restoration to hold more water and nutrients, a 42-day incubation experiment using a completely randomized design (CRD) under the two-factor factorial arrangement was conducted. Macro aggregation (0.25 to >1 mm), carbon retention in macro aggregates, active carbon (dissolved organic carbon, a mineral-associated organic carbon, microbial biomass carbon), total organic carbon, the carbon mineralization activities, and water retention capacities were observed to be highest in soils that were treated with (FM + M₂, FM + M₂₂, PM + M₁₉, and MO + M₁₉). Finally, we conclude that organics mineralization by microbial actions releases organic glues that not only impart particle aggregation but also conserve organics as aggregate entrapped carbon. Amalgamated application of microbe–manure combinations directly impacts soil structure and organic carbon contents, but in an indirect scenario, it improves the fertility and productivity of the soil. Therefore, it is strongly recommended to use organic manures and microbes in combination to restore structurally degraded lands.

El alza y escases de fertilizantes han reducido la producción de cultivos y esto ha repercutido en los precios de los alimentos. Objetivo fue determinar la dosis adecuada de compost a base residuos de mercado para mayor rendimiento de lechuga. Método se basa en investigación aplicada; por lo que se empleó el Diseño de Bloques Completamente al Azar que constó de 3 bloques y 5 tratamientos, estos fueron: T1 = 0, T2 = 45 g, T3 = 60 g, T4 = 75 g y T5 = 90 g/ planta y se aplicaron 7 días después del trasplante. Se evaluó características físicas de la planta y disposición de nitrógeno con relación a las dosis. Obtenidos los datos se procesaron mediante análisis de varianza y Duncan. Se determinó que T4 destacó en longitud de planta con 25.86 cm, pero T5 en peso de lechuga con 128.23 g, rendimiento con 12.25 tn/ha, diámetro ecuatorial con 21.12 cm y disposición de nitrógeno con 200.4 kg/ha. Concluye que la mayor dosis que es T5 obtuvo mayor rendimiento que se diferenció a 40.81 % respecto al testigo, esto se debe que se adiciono nitrógeno y otros nutrientes, lo cual hubo mayor disponibilidad que optimizó las reacciones bioquímicas y esto influyó en rendimiento.

The increase in fertilizer prices was 20% after the pandemic, which increased the cost of crop production in Peru. For this reason, research was conducted on the analysis of the chemical and biological characteristics and their relationship with the yield of radish nourished with compost based on plant residues. The objective was to analyze the chemical and biological characteristics and their relationship with the yield of radish nourished with vegetable waste-based compost. It is based on the methodology applied with an experimental approach; therefore, the statistical model of the Completely Randomized Block Design was used, which consisted of 3 blocks and 5 treatments that were T₁ with 0, T₂ with 4, T₃ with 6, T₄ with 8 and T₅ with 10 t/ha of compost based on vegetable residues, and the doses were applied 14 days after sowing. Physical characteristics (total plant length, plant weight, bulb equatorial diameter and marketable yield), nutrient concentrations (nitrogen, potassium, phosphorus, calcium, magnesium, sulfur, molybdenum, iron, manganese, copper, zinc, boron, chlorides and sodium) in leaves and stomata density were evaluated. The results determined that T₅ stood out in total plant length with 28.07 cm, plant weight with 75 g, bulb equatorial diameter with 4.52 cm and commercial yield with 22.53 t/ha. In the total contribution of nitrogen in relation to yield with 300.44 kg/ha. Profitability with 186.8%. Quantification of stomata per treatment with 598 stomata/mm² and concentration of nutrients in leaves at T₃ with nitrogen, potassium, phosphorus and magnesium. It concludes that T₅, which has an adequate concentration of nutrients in leaves such as magnesium, manganese, zinc and stomata density of 598 stomata/mm² influenced optimal biochemical reactions that resulted in the highest yield with 22.53 t/ha, differing by 31.38% in relation to T₁.

La pandemia por COVID-19, evidenció la situación que se encuentra la educación en Perú, por más de 2 años se notó la carencia de dispositivos tecnológicos y que al continuar con las clases progresivas no acataron adecuadamente las medidas de prevención. La finalidad del estudio fue demostrar cómo influyen las medidas de prevención en el retorno a las clases presenciales. Se empleó el diseño descriptivo comparativo transversal, técnicas de observación y encuesta y método mixto. La muestra fue de 30 alumnos evaluados en dos grupos. Los resultados determinaron que el 90 % asistió a clase en la tercera semana, la cuarta semana el 73 % no cumple adecuadamente las medidas de prevención y el 90 % obtuvo dispositivos tecnológicos para la clase virtual. Se concluye que, hubo incremento del retorno a las clases presenciales; sin embargo, es necesario tener en cuenta acatar las medidas de prevención para reducir el contagio.