RESUMO
Mining environmental liabilities generate environmental pollution. The objective of the present study was to determine the yield of white clover (Trifolium repens) and orchard grass (Dactylis glomerata) cultivated in mining environmental passives adding black earth and compost as a substrate in the Buenaventura Julcani Huancavelica Company. The treatments were the combinations: 4: 3.1: 3.1: 3:1.1 kg of RP: RP, TN: RP, C: RP, TN, C respectively. They were distributed in four treatments with twelve experimental units for each species of leguminous and gramineous grass, we worked according to the completely randomized design (DCA) with a 2 x 4 factorial arrangement, the experimental unit being a treatment with twelve repetitions. The variables evaluated were: germination percentage (TG) and stem survival percentage (TST). For the statistical analysis, the SPSS software was used.
Assuntos
Compostagem , Trifolium , Dactylis , Medicago , Distribuição AleatóriaRESUMO
Chelates are nutrient-rich compounds that enhance the condition of plant tissues as micronutrients. Micronutrient deficiencies particularly iron (Fe) and zinc (Zn) leads to various problems for plant including chlorosis and necrosis etc. An adequate intake of Fe and Zn etc. is required by the human body. Biofortification of cereals with Fe and Zn is seen as a cost-effective solution to the problem of Fe and Zn deficiencies as well. In recent decades, many chelating compounds have been established and incorporated into agricultural systems. The most recent formulation involves the use of amino acids synthesized with one or more nutrient ions to improve fertilizer efficiency and better respond to environmental conservation. In addition to its primary function as a source of micronutrients, aminochelled are an active nitrogen (N) stimulant in plant nutrition, preventing the negative effects of basic N fertilizers like urea. The use of amino chelates, rather than just chemical fertilizers, has been shown to provide better production and quality as well as higher nutritional concentrations in several experiments. Furthermore, this review sheds light on various aspects of amino chelates fertilizers including types, history, and their effects on agricultural crops. In spite of amino chelates fast dominance in many countries' fertilizer countries, there is not enough scientific data and knowledge on the specific reactions of plants to biotic and abiotic stresses from amino fertilizers.
Assuntos
Fertilizantes , Ferro , Humanos , Ferro/metabolismo , Agricultura , Zinco/metabolismo , Micronutrientes/metabolismoRESUMO
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.
Assuntos
Bentonita , Produtos Agrícolas , Solo , Animais , Galinhas , Clorofila A , Ecossistema , Esterco , Aves Domésticas , Areia , Produtos Agrícolas/crescimento & desenvolvimentoRESUMO
Chelates are nutrient-rich compounds that enhance the condition of plant tissues as micronutrients. Micronutrient deficiencies particularly iron (Fe) and zinc (Zn) leads to various problems for plant including chlorosis and necrosis etc. An adequate intake of Fe and Zn etc. is required by the human body. Biofortification of cereals with Fe and Zn is seen as a cost-effective solution to the problem of Fe and Zn deficiencies as well. In recent decades, many chelating compounds have been established and incorporated into agricultural systems. The most recent formulation involves the use of amino acids synthesized with one or more nutrient ions to improve fertilizer efficiency and better respond to environmental conservation. In addition to its primary function as a source of micronutrients, aminochelled are an active nitrogen (N) stimulant in plant nutrition, preventing the negative effects of basic N fertilizers like urea. The use of amino chelates, rather than just chemical fertilizers, has been shown to provide better production and quality as well as higher nutritional concentrations in several experiments. Furthermore, this review sheds light on various aspects of amino chelates fertilizers including types, history, and their effects on agricultural crops. In spite of amino chelates fast dominance in many countries' fertilizer countries, there is not enough scientific data and knowledge on the specific reactions of plants to biotic and abiotic stresses from amino fertilizers.
Os quelatos são compostos ricos em nutrientes que melhoram a condição dos tecidos vegetais como micronutrientes. Deficiências de micronutrientes, particularmente ferro (Fe) e zinco (Zn), levam a vários problemas para as plantas, incluindo clorose e necrose, etc. A ingestão de uma quantidade adequada de Fe e Zn, etc., é exigida pelo corpo humano. A biofortificação de cereais com Fe e Zn também é vista como uma solução econômica para o problema das deficiências de Fe e Zn. Nas últimas décadas, muitos compostos quelantes foram estabelecidos e incorporados em sistemas agrícolas. A formulação mais recente envolve o uso de aminoácidos sintetizados com um ou mais íons nutrientes para melhorar a eficiência do fertilizante e responder melhor à conservação ambiental. Além de sua função primária como fonte de micronutrientes, os aminoquelados são um estimulante de nitrogênio (N) ativo na nutrição das plantas, evitando os efeitos negativos de fertilizantes nitrogenados básicos como a ureia. O uso de aminoquelatos, ao invés de apenas fertilizantes químicos, tem mostrado proporcionar melhor produção e qualidade, bem como maiores concentrações nutricionais em vários experimentos. Além disso, a presente revisão lança luz sobre vários aspectos dos fertilizantes aminoquelatos, incluindo tipos, história e seus efeitos nas culturas agrícolas. Apesar do domínio rápido dos aminoquelatos em muitos países de fertilizantes, não há dados científicos suficientes e conhecimento sobre as reações específicas das plantas aos estresses bióticos e abióticos dos fertilizantes amino.
Assuntos
Doenças das Plantas , Deficiências Nutricionais , Fertilizantes/história , Desenvolvimento VegetalRESUMO
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.
O solo é a base de qualquer ecossistema, incluindo agricultura e plantações, pois conserva nutrientes e água para as raízes das plantas. Em lugares secos e semiáridos em todo o mundo, incluindo os Emirados Árabes Unidos, os solos arenosos são comuns. Sua fertilidade é extremamente baixa e a produção é prejudicada por uma série de desafios agronômicos. Fontes de condicionador de solo, como bentonita e esterco de galinha, podem ser usadas para melhorar os atributos do solo arenoso pobre e, portanto, aumentar a produtividade do solo. De novembro de 2019 a março de 2020, foi realizado um experimento para investigar as taxas de crescimento de buganvílias após bentonita e esterco de galinha em solo arenoso retirado de Lehbab, Dubai. A buganvília foi avaliada quanto à altura da planta (cm), comprimento máximo do ramo primário (cm), número de folhas por planta, número de ramos secundários, peso da parte aérea (g), comprimento da raiz (cm), peso da raiz (g), razão raiz/parte aérea, teores de clorofila e clorofila a* e b*. Neste experimento foi utilizado o delineamento inteiramente casualizado (DIC) com cinco tratamentos (10 repetições por tratamento). De acordo com os resultados, as adições de bentonita e esterco de galinha influenciam consideravelmente as propriedades produtivas do solo arenoso, conforme indicado pelo crescimento de buganvílias. Além disso, a pesquisa sugere que a buganvília pode ser plantada com eficiência com 10% de bentonita e 15% de esterco de galinha aplicado em solo arenoso, resultando, assim, em plantas mais saudáveis em comparação com outras alterações.
Assuntos
Bentonita/administração & dosagem , Características do Solo , Solos Arenosos , Nyctaginaceae/crescimento & desenvolvimento , Esterco/análise , Emirados Árabes Unidos , Galinhas , DesertoRESUMO
Cervical human papillomavirus (HPV+) infection is associated with an increased risk of cervical dysplasia. Although the frequency of HPV+ in systemic lupus erythematosus (SLE) has been investigated in some races its prevalence in Hispanic women is still unknown. This cross-sectional study evaluated the prevalence of cervical HPV+ in Mexican women with SLE (n = 34) or rheumatoid arthritis (RA) (n = 43) and in healthy controls (n = 146). These women were interviewed about risk factors for sexually transmitted infections and cervical cytology analysis was performed. HPV+ viral types were identified using PCR: HPV+ was observed in 14.7% of SLE, 27.9% of RA and 30.8% of controls. High-risk HPV types were observed in 11.7% of women with SLE, 27.9% of women with RA, and in 26% of the controls. High-risk viral types 58, 35 and 18 were the most frequently identified in SLE. Two women with SLE had a high-grade squamous intraepithelial lesion and one had cervical cancer. An association was observed between methotrexate utilization, longer duration of therapy with prednisone, and HPV+ in RA or SLE. Thus, there is a high prevalence of cervical HPV infection in Mexican women with SLE or RA, and physicians must be vigilant in preventing the development of cervical dysplasia.
Assuntos
Alphapapillomavirus/isolamento & purificação , Artrite Reumatoide/epidemiologia , Lúpus Eritematoso Sistêmico/epidemiologia , Infecções por Papillomavirus/epidemiologia , Doenças Virais Sexualmente Transmissíveis/epidemiologia , Displasia do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/epidemiologia , Adulto , Alphapapillomavirus/genética , Análise de Variância , Estudos de Casos e Controles , Estudos Transversais , DNA Viral/isolamento & purificação , Feminino , Humanos , México/epidemiologia , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/virologia , Prevalência , Doenças Virais Sexualmente Transmissíveis/diagnóstico , Doenças Virais Sexualmente Transmissíveis/virologia , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/virologia , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/virologia , Esfregaço VaginalRESUMO
Se investiga la susceptibilidad a la rubeola en 200 mujeres de un nivel socioeconomico alto, encontrandose que el 44% no tenian titulaciones por IH. El diagnostico clinico no fue corroborado por IH en el 55,5% de los casos que supuestamente padecieron de rubeola.Solo el 10,5% de la muestra, fue vacunada anteriormente, pero el 38,2% carecia de titulaciones por IH