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    5043 research outputs found

    Permacultura –un sistem de proiectare inteligent

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    n the early seventiesthere appeared a new ecological design system, a system called Permaculture aiming to sustain in an intelligent way a community set in a natural environment in order to create lasting strong independent ecosystems to protect the soil, thebiodiversity and nature.The name of Permaculture has been obtained by combining two words: agriculture and permanent (lasting).The present work aims at introducing this concept to the public, a concept that is to be applied to unconventional agriculture since. Permaculture can be based on a biodynamic, organic, ecological, synergicagricultural method.There will be displayed principles and ethics which constitute the foundation of Permaculture, such as: the care for the soil, the care for the people, the equal division of the excess(surplus) and the setting of limits of consumption and reproduction, as well

    Occurrence and frequency of powdery mildew (Blumeria graminis f.Sp. tritici) of winter wheat in Nord-East of Romania, between 2015-2018

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    Wheat crop are damaged by numerous pathogens, which can produce important yields losses. Blumeria graminis (DC.) E.O. Speer f.sp. tritici Em. Marchal, anamorph Oidium monilioides Link. is an important pathogen present annually in wheat fields, and yield losses attributed to this disease range from 13% to 34%, when the degree of infestation is low, but in the cases when the pressure of infection is high the losses can be over 50%, reaching even the total production compromise. The paper presented the behavior of 35 winter wheat cultivars, represented by Romanian varieties: 11368G1, 11424G1, 11838G8, Boema, Glosa, Izvor, Litera, Miranda FDL, Otilia, Pajura, Pitar, Semnal, Unitar, Ursita, Vestitor, Voevod, Voinic, Zamolxe, Zina, Zamfira, respectively from A.R.D.S. Turda: Andrada, Codru, Dumbrava, T.19-10, T.42-05, T.55-01, T.62-01, T.95-12, T.109-12, T.118-11, T.123-11, T.124-11, T.143-11, T.150-11 and Bezostaia 1 (control variant) based on the dates obtained in three years of field trials (2015-2018), performing at Didactic Station Iasi - Ezăreni Farm. The winter wheat varieties exhibited a wide variability over the studied pathogen, during the study period, variability determined by the characteristics of the agricultural year and by each winter wheat variety

    Soviet-era women pedologists

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    Pedology has a complex and ambiguous history. Soil science - science is very laborious, it requires long expeditions in the most diverse regions of our country. The most important section of soil research is analytical work in laboratories using sophisticated modern equipment. A significant part of all these diverse studies is carried out by pedagogical women, but they are inexcusably short of their work and achievements. The study includes biographies and essays not only about outstanding scientists - doctors and professors, but also many talented specialists - women: ”field workers”, analysts, cartographers, editors, teachers, without a modest labor of which outstanding scientific results and new knowledge of nature would be impossible (Mirskaya et al., 1993). In many areas of soil science, many women work - more than 60% of the total number of scientists (Agababyan et al., 1995; Aleksandrova, 2001; Ammosova, 2000). In more than 100 years of history of soil science, four generations of women scientists (one generation covers a 20-year period). Some of them discovered new or successfully developed the main directions in soil science, organized laboratories or replaced men in leading positions in military and post-war years, created their own scientific schools, grew a galaxy of talented students. Others selflessly worked (and continue to work), receiving primary scientific data on expeditions, in experimental fields, in laboratories, or worked as editors, secretaries, assistants to science leaders (Agamova et al., 2009). Both of them served for the benefit of science, not betraying it in a difficult time, devoting their lives entirely to it, investing their soul and mind, giving all energy without receiving from the scientific community the due attention that they deserved

    Methodological concept of potential fertility planification under irrigational conditions

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    In this work a new methodological concept of potential fertility planification and rehabilitation under irrigational conditions. Using this method, a model of potential fertility planification was elaborated, which was verified with the usage of lysimetres. It was determined that black earth`s fertility can be reestablished only using ecosystems` capacity of reestablishing their own productive and reproductive potential after elimination of destructive processes, including replacement of classical methods of investigation with using the methodology proposed in this study in the area of agro technology. It was ascertained that in case of alienation from biological mass of plants with more than 68%, the diminution of effective fertility of soil has a specific character: during 5-7 years, when the cultivated plants` pregnancy diminishes achieving one particular level, after that, it remains constant despite of the fact that the intensity of alienation process is still the same. The results of our investigation were verified in conditions of lysimeters installed in the State Hydro meteorological Service area

    The possibility of combining some interactive methods for stimulating multiple intelligences in students within biology lessons

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    The purpose of this paper is to highlight how some interactive methods can be applied at different points in a biology lesson to activate different intelligence in students. As a research method we used the analysis of the current school curricula and textbooks developed for the 6th grade. By analyzing these curriculum documents, we have identified the possibility of activating multiple types of intelligence in the lessons of new knowledge transmission and recapitulation. Thus, in the 6th grade, in the "Reptile - Lizards" lesson, by applying the Cube method in the stage of transmitting new knowledge and Clustering technique in the stage of knowledge fixation and systematization of knowledge, it is possible to stimulate interpersonal, linguistic, logical, naturalist, visual, intrapersonal and, sometimes, kinesthetic intelligence. At the "Birds of Prey" lesson, the use of Think - Pair - Share method, in the stage of fixation new knowledge, and of Double Bubble Map or Venn Diagram, applied individually by means of a worksheet, in the stage of fixation and systematization of knowledge, can stimulate the interpersonal, linguistic, intrapersonal, naturalistic and visual intelligences. In the "Long Legged Birds" lesson, the use of the Star bursting method, in the stage of fixation and systematization of knowledge, and of the Response - Throw - Inquiry method, in the assessment stage of students' knowledge, can stimulate interpersonal, linguistic, visual, intrapersonal, naturalistic, and sometimes also kinesthetic intelligences. For the recapitulation lesson entitled "Reptiles", we propose applying the new interactive method called Search - Think - Build, through which the intrapersonal, interpersonal, linguistic, visual and natural intelligences of the students will be required. In conclusion, it can be said that by combining two interactive methods, carefully selected by the teacher, five or six types of intelligence can be activated in the students

    The effect of antihistamines on allergic inflammation and anxiety in dogs and cats

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    At first, the terms "allergy" and "hypersensitivity" were equivalent, but with the progress of knowledge in the field of immunology, the hypersensitivity reactions were classified into two categories: immunological and non-immunological hypersensitivity. Today, the term "allergy" is used to describe allergic-type hypersensitivity reactions. Anxiety is a state of mental discomfort, a disorder of affectivity, manifested by anxiety, unmotivated fear, anxiety. These changes of psychological nature lead to behavioral alterations which increase over time and often result in the social exclusion of the affected person. This study looked at the efficacy of antihistamine medication in the pathology of dog and cat allergy reactions, as well as in the increasingly frequent anxious manifestations of these species. In order to identify and diagnose allergic reactions to dogs and cats, 5 cats and 11 dogs were examined which showed a specific symptom such as: pruritus of different intensities, depilation, skin erythema or edema. For the examination of the animals, working methods were used in the following sequence: anamnesis, clinical examination, dermatological examination. Wood examination for skin lesions was performed in a dark room after the lamp had been heated beforehand. The otoscopic examination, in case of impaired auditory conduction, was performed with the otoscope that was connected to a computer allowing a better visualization of the images. Of the total of the animals examined, 37.5% were diagnosed with flea allergy, 31.25% with food allergy, 12.5% with an allergic reaction from other insects, and those diagnosed with tickle allergy, atopic dermatitis and dermatitis Contact represents 6.25% of the total. In cases of intense pruritus-induced allergies, diphenhydramine was used as antihistamine therapy precisely for its anti-anxiety, sedative effect in order to prevent auto-implantation in susceptible animals

    The influence of Acuastoc on soil moisture and some morphophysiological properties in maize crop

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    In this paper, I studied the influence of Acuastoc on soil moisture and some morpho-physiological properties (average plant height and leaf chlorophyll content) was studied in maize cultures. Acuastoc consists of 20% hydrogel (Aquasorb) and 80% zeolite. Aquasorb is a copolymer of aclimamide and potassium acrylate, which plays a role in water retention during wet periods, as well as in water release during drought periods. Zeolite (also known as "boiling rock" or "wonder rock") was discovered by the Swedish mineralogist Baron Axel Fredrik Cronstedt in 1756, by heating mineral stilbite with a blowing flame. This has a high cationic exchange and water retention capacity. The use of Acuastoc in the agricultural sector, in the context of global climate change, can be an optimal solution to reduce the negative effects caused by the uneven distribution of rainfall over the entire vegetation period. The study was carried out in vegetation vessels, and the work variants were as follows: Variant V1 (control) without treatment, V2, treated with 100 kg ha-1 of Acuastoc, V3 without treatment, but subject to periods of water stress, and V4 treated with 100 kg ha-1 Acuastoc and subject to periods of water stress. Water stress was induced to plants after sunrise, from the 4-6 leaf stage, by reducing the number of waterings by half compared to Variants V1 and V2. The soil in the vegetation vessels was characterized by a pH of 6.29, a humus content of 2.9%, a total N of 0.11%, a P AL of 29.5 mg kg-1 , and a K AL of 183 mg kg-1 . The results revealed a significant influence of Acuastoc on the analyzed parameters especially in water stress conditions

    Sustainable development of the agricultural sector in the Republic of Moldova

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    The issue of sustainable development of the agriculture in the Republic of Moldova has become very important lately. Thus, the sustainable development of the agriculture in the Republic of Moldova can be defined as a continuous and consecutive growth of the agricultural activity results. The development of the agricultural sector is of major importance for the Republic of Moldova. The rural population is 58%, whose income comes from agriculture or from other agricultural activities. That’s why, the state should support the rural population, whose income is directly dependent on the agricultural sector. The main objectives of the rural development department are: creating viable rural areas, stimulating economic growth, increasing competition in the agriculture, food and forestry sectors, ensuring a sufficient level of self-sufficiency, rational use of natural resources and tackling climate change, setting favorable conditions for improving the quality of life in rural areas. The Republic of Moldova still has to work on them

    Consideraţii asupra entomofaunei din unele plantaţii pomicole de măr

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    Observations were made at the SC Loturi Service SRL Delesti, Vaslui in a fruit-growing orchardwith intensive apple trees where a vegetal carpet is made especially of graslands between the rows of trees.The plantation has been chosen to maintain the vegetal carpet that can influence the local ecosystem conditions, such as the physical, chemical and microbiological characteristics of the soil; biodiversity of useful entomofauna; reducing the level of attack of phytopathogenic agents and specific pests, and with multiple effects on the quantity and quality of fruit and ultimately on the profitability of apple crops.For the collection of the entomological we have been used Barber traps type soil of being six in number, arrangedin a single row of fruit at a distance of 10 m between them.Samples were harvested constantly every 10-25days.At each collection, the trap material was cleansed by plant debris, and the entomofauna collected was brought to the lab and then the useful andharmful species were identified

    Influenţa vermicompostului asupra producerii răsadurilor la unele specii de ierburi ornamnetale

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    The best alternative of nowadays environmental degradation is to realise a proper use of the available unutilized organic biodegradable wastes for converting them into compost within a short period. Vermicompost could be used as an excellent soil amendment for main fields and nursery beds and has been reported to be useful in raising nursery species plants. The current paper presentsthe influence of vermicompost on producing ofseedlings at ornamental gramineousspecies Pennisetum setaceum. Vermicompost was utilized in doses of 10% (V1), 20% (V2), 30% (V3) and 0% (V4). For all variants the basic utilised substrate was formed by 2 parts peat and 1 part garden soil. All variants at which vermicompost was utilised provided a more vigorous seedling in comparison with control variant (V4) and the best results were recorded at V3. Vermicompost could promote early and vigorous growth of seedlings. Vermicompost has found to be effectively enhanced for root formation, elongation of stem and production of biomass

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