Avaliação de diferentes substratos orgânicos na produção de biomassa do hortelã (mentha piperita l.)

O cultivo de plantas medicinais assume importância mundial devido à demanda exercida pelas indústrias químicas, farmacêuticas, alimentares e de cosméticos. Entre as plantas medicinais, a Hortelã (Mentha piperita L.), apresenta óleo essencial de grande interesse econômico. A aplicação de adubos orgânicos em seu cultivo melhora as condições físicas, químicas e biológicas do solo, além de fornecer nutrientes que contribuem em diversos processos metabólicos no vegetal. Este trabalho teve como objetivo avaliar diferentes substratos orgânicos na produção de biomassa de hortelã. O experimento foi realizado em casa de vegetação do campus experimental da Universidade Federal do Recôncavo/UFB em Cruz das Almas/Ba. Foram 4 tratamentos: T1- controle (solo puro), T2 - húmus de minhoca + solo + areia, T3 – composto orgânico + solo + areia, T4 – esterco bovino + solo+ areia, com dez repetições, totalizando 50 unidades experimentais. As variáveis foram altura da planta, diâmetro do caule, teor de clorofila a e b, massa fresca e seca da parte aérea, massa fresca e seca da raiz. O tratamento com esterco bovino apresentou as melhores média na produção de massa seca de 130, 28 g e fresca de 22, 59 g da parte aérea e raiz.de 176,13 e 25,18 g respectivamente. A maior média em relação a altura da planta foi com o tratamento de composto orgânico (46,5 cm). The cultivation of medicinal plants is of importance due to global demand exerted by the chemical, pharmaceutical, food and cosmetics. Among the medicinal plants, the Mint (Mentha piperita L.) L. essential oil has great economic interest. The application of organic fertilizers in cultivation improves the physical, chemical and biological soil properties, in addition to providing nutrients that contribute in various metabolic processes in the plant. This study aimed to evaluate different organic substrates in the production of biomass mint. The experiment was conducted in a greenhouse on campus Universidad Federal Reconcavo / UFB in Cruz das Almas / Ba. 4 treatments were: T1-control (pure soil), T2 - earthworm humus soil + sand +, T3 - compost + soil + sand, T4 - cattle manure + soil + sand, with ten repetitions, totaling 50 experimental units. The variables were plant height, stem diameter, chlorophyll b, fresh and dry weight of shoot, fresh and dry root. Treatment with manure showed the best average in the dry mass of 130, 28 g and 22 fresh, 59 g of shoots and raiz.de 176.13 and 25.18 g respectively. The highest average over the height of the plant was to treat organic compound (46.5 cm).

Surgical drainage vs conservative treatment of odontogenic cellulitis in pediatric patients: A systematic review

The aim of this study was to compare the efficacy of two different treatment of odontogenic cellulitis in pediatric patients: conservative treatment (just intravenous antibiotic administration and tooth root treatment or tooth extraction) and surgical treatment (intravenous antibiotic administration, incision, drainage and tooth root treatment or tooth extraction). The search strategy was conducted based on the model of systematic review adopted by PRISMA guidelines. The search strategy included: Pubmed/MEDLINE, Web of Science, Scopus and Cochrane Library databases seeking clinical trials with, unless, ten pediatric patients, in English and available on-line. The key-words used in the screening were “Infection Control, Dental and Cellulitis OR odontogenic infection and cellulitis”. A total of 404 studies were obtained and the selection of manuscripts was performed based on the defined inclusion and exclusion criteria and four manuscripts were according with review. It was verified that the surgeons of these studies commonly choose the conservative treatment, varying the adherence rate between 75% and 95.2% and no complications were associated with this treatment. Likewise, 75% of the author support the conservative treatment. The conservative treatment of cellulitis in pediatric patients, presents efficacy without having to submit the patient to surgical drainage.

About the influence of solutions of fulvic acids from sapropel on lettuce plants in various types of its processing

The purpose of our research was to assess the influence of treatment with fulvic acid (FA) solutions (obtained from sapropel) on the physiological state, production process, and quality of salad crops under intensive controlled conditions. Research method. Treatment of plants with solutions of FA in various concentrations was carried out under controlled conditions using three different methods: soaking cress seeds (0.03-300mg/l); non-root treatment of vegetative plants (90–150 mg/l), when growing lettuce by a low – volume method with drip fertigation with Knop nutrient solution; adding a nutrient solution to the root medium (0.03-150 mg/l), when growing lettuce under nutrient film technique. Results. The most pronounced stimulating effect on plant growth was obtained after seeds treatment with FA solutions in concentrations of 0.3-150.0 mg/l, during non-root treatment of lettuce in concentrations of 0.3 and 150.0 mg/l, and when FA was introduced into the root medium at a concentration of 90.0 mg/l. It was suggested the lettuce growth under the action of FA was conditioned by enhancing plants metabolism and increased entry of nutrients to the aboveground organs of plants (during non – root processing)- and by nutrient uptake increasingas well as activation of the synthesis of photosynthetic pigments-chlorophylls and carotenoids (when a nutrient solution was add to the root medium. Scientific innovation. Under controlled conditions, a comprehensive assessment of the effect of FA solutions obtained from sapropel on the physiological state, production process, and quality of salad crops was carried out. The concentrations of fulvic acid solutions that had the most pronounced stimulating effect on the growth and development of lettuce plants in various types of treatment were determined. The specificity of the responses of lettuce plants to various types of treatment with FA solutions was revealed.

The use of a novel silicon-containing agrochemical produced by PhosAgro to potato in the Non‒Chernozem zone of Russia

Оценивали влияние некорневой обработки Si-содержащим агрохимикатом на урожайность и качественные показатели клубней картофеля при выращивании на семенные цели. Опыты закладывали на экспериментальной базе «Коренево» ВНИИКХ им. А.Г. Лорха в Люберецком районе Московской области (поселок Коренево) в 2019–2020 годах. Изучали влияние некорневых обработок кремнийсодержащим агрохимикатом от ФосАгро в возрастающих дозах на продуктивность семенного картофеля сорта Голубизна. Опрыскивание растений препаратом со 100 до 1000 г/га в физическом весе агрохимиката проводили в фазе бутонизации – начала цветения при расходе рабочего раствора 300 л/га. Схема опыта включала восемь вариантов в четырехкратной повторности. Система питания стандартная – N90P90K135. Структуру урожая клубней картофеля определяли, взвешивая фракции с каждой делянки с учетом поперечного диаметра: мелкая фракция – меньше 30 мм; семенная – от 30 до 60 мм; продовольственная – клубни более 60 мм. Опрыскивание растений картофеля кремнийсодержащим агрохимикатом в фазу бутонизации – начала цветения повышает валовую урожайность и товарность семенных клубней, а также увеличивает выход питательно ценных компонентов с гектара. Максимальная валовая урожайность клубней была получена в вариантах с внесением 270–384 г SiO2/га. Прибавка урожайности клубней при этом составила 4,9–8,5 т/га. В свою очередь, для вариантов с дозой 270–384 г SiO2/га были достигнуты наилучшие показатели по выходу крахмала (8,6–8,7 т/га) и витамина С (7,9–8,3 т/га). The effect of non-root treatment with Si-containing agrochemicals on the yield and quality indicators of potato tubers when growing for seed purposes is evaluated. The experiments were laid at the experimental base Korenevo of the Russian Potato Research Center in the Lyubertsy district of the Moscow region (Korenevo village) in 2019–2020. The effect of non-root treatments with silicon-containing agrochemicals from PhosAgro in increasing doses on the productivity of seed potatoes of the Golubizna variety was studied. Spraying of plants with the preparation from 100 to 1000 g/ha in the physical weight of the agrochemical was carried out in the budding phase – the beginning of flowering at the consumption of the working solution of 300 l/ha. The scheme of the experiment included eight variants in a four-fold repetition. The standard power supply system is N90P90K135. The structure of the crop of potato tubers was determined by weighing the fractions from each plot, taking into account the transverse diameter: small fraction – less than 30 mm; seed fraction – from 30 to 60 mm; food-tubers more than 60 mm. Spraying potato plants with silicon-containing agrochemicals during the budding phase – the beginning of flowering increases the gross yield and marketability of seed tubers, as well as increases the yield of nutritionally valuable components per hectare. The maximum gross yield of tubers was obtained in variants with the introduction of 270–384 g of SiO2/ha. The increase in the yield of tubers at the same time amounted to 4.9–8.5 t/ha. In turn, for the variants with a dose of 270–384 g of SiO2/ha, the best starch yield indicators were achieved (8.6–8.7 t/ha) and vitamin C (7.9–8.3 t/ha).

Endodontic Microsurgical Instruments - A Review

Indications for endodontic surgery include failed nonsurgical treatment or retreatment, anatomical problems or iatrogenic errors. Endodontic surgery was considered as the last option with instruments that were unsuitable, surgical sites with inadequate vision and increased incidence of post-operative complication. But today endodontic surgery has evolved into endodontic microsurgery with the advancement in illumination, magnification, instruments and materials. Higher magnification and micro-instruments have increased the clinical outcome of endodontic surgery. Traditional instruments used in endodontic surgery are too large for the small osteotomy sites of microsurgery. Few of the instruments used for microsurgery are the smaller version of the traditional instruments. Endodontic microsurgery represents a minimally invasive treatment option with predictable outcome with the use of micro-instruments. A high success rate of nearly 93.5 % is reported, thus, making microsurgery a predictable option for the management of periapical pathology where surgical root treatment is not possible. The advanced techniques developed to overcome the barriers seen in traditional endodontic surgery have allowed the clinicians to achieve higher success rates. Along with the micro-instruments, the introduction of biomimetic materials has also led to the favourable results after endodontic surgery. This article discusses the different microsurgical instruments available for microsurgical procedures. KEY WORDS Curette, Microblade, Microsurgery, Piezotomes, Retractor, Ultrasonic.

Efficiency of integrated use of mineral and microbiological fertilizers on winter rye yield in the Novgorod region

As a result of the research experiment it was established that the highest yield of winter rye grain of 7.3 and 6.3 t/ha and digestible protein of 0.66 and 0.57 t/ha were obtained when applying doses of mineral fertilizers based on the planned yield (background 1) and reduced by 50% (background 2) in relation to background 1 and double use of microbiological fertilizers: in a tank mixture with a pesticide when etching seeds of 2.0 l/t and non-root treatment of crops in the tillering — exit phase at plant height up to 30 cm of 1 l/ha of each preparation. The use of Azotovite and Phosphatovite twice in technological operations allowed to obtain an additional yield of winter rye grain of 2.4 and 2.1 tons per hectare (more than 48%) in relation to backgrounds 1 and 2 respectively. High grain yield and low cost of microbiological fertilizers, as well as their combined use in tank mixtures with pesticides, provided high energy-economic indicators of winter rye cultivation technologies: low energy intensity of production of a ton of grain (less than 2.4 GJ), high energy efficiency coefficient (more than 7.2 units), production profitability of more than 170%.

Mit Toyohari Ursachen und Symptome behandeln

SummaryMit Toyohari wird die Ursache von Beschwerden über das Root-Treatment und die Symptomatik über das Branch-Treatment behandelt. Für das Root-Treatment ermittelt man zunächst das Grundmuster eines Patienten, um eine individuell angepasste Behandlung durchzuführen. Zur Behandlung von Beschwerden können verschiedene Toyohari-Techniken hilfreich sein; dabei kommen unter anderem unterschiedliche Nadeln zum Einsatz.