نتایج جستجو برای: farming rotation

تعداد نتایج: 97042  

2005
Christian R. Vogl Lukas Kilcher Hanspeter Schmidt

Organic farming is a promising agricultural method with positive effects on the human ecological and social environment. Governments have taken over a major role in defining organic farming by creating legal standards. Many countries all over the world have estabChristian R. Vogl is affiliated with the Institute for Organic Farming, University for Natural Resources and Applied Life Sciences (BO...

Journal: :E3S web of conferences 2023

The materials of long-term field experiments carried out in the forest-steppe Ob region Novosibirsk and northern Kuznetsk basin Kemerovo various types crop rotations on leached chernozems were analyzed to assess possibility developing organic farming. most stable rotation relation weeds is a grain-fallow with winter rye, where coefficient productivity decrease an increase infestation by 1 unit ...

Journal: :Agronomy Science 2022

The pro-health and pro-environmental assets of organic farming are a reason why this system is now promoted in agriculture. objective the research was to determine effect conventional crop production (potato, oat, spring vetch) on yield, water erosion, losses NPK nutrients, LAI, infiltration, fresh mass earthworms. From 2019 2021, two-factor field experiment carried out at Mountain Experimental...

Journal: :Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention 2001
S G Gerberich R W Gibson L R French C M Renier T Y Lee W P Carr J Shutske

OBJECTIVES The purpose of this effort was to identify the incidence and consequences of both farming and non-farming related injuries and the potential risk factors for farming related injuries among children and youth, aged 0-19 years, who lived in farm households in a large region of the United States. METHODS Data were collected from randomly selected farm households during 1990. Rates and...

Albert Ofuoku, Angela Izukanne Emodi

This study examined the effects of agricultural child labour on children’s perception of farming occupation in Delta State, Nigeria. A total of 336 respondents comprising of 112 farming household heads and 224 children in the selected households were used for the study.Farming activities of the children were highest during weekends. Highest level of participation was recorded in herbicide and p...

Journal: :Environmental Health Perspectives 2002
T Adler

This issue of PLoS Genetics contains the second of two important papers describing the high levels of meiotic failure caused by exposure of female mice to a chemical known as Bisphenol A (BPA) [1]. In the first article [2], Pat Hunt and her collaborators demonstrated high levels of meiotic failure in females exposed to BPA, suggesting that BPA exposure affects maturing oocytes. This conclusion ...

Journal: :medical journal of islamic republic of iran 0
mehdi moghtadaei department of orthopedic surgery, rasoul-e-akram hospital, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasoul-e-akram hospital javad moghimi department of orthopedic surgery, rasoul-e-akram hospital, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasoul-e-akram hospital gholamreza shahhoseini department of orthopedic surgery, rasoul-e-akram hospital, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasoul-e-akram hospital

background: proper rotation of components in total knee arthroplasty (tka) will largely affect the postoperative outcome. ethnical variation may affect rotational profile. we aimed to evaluate distal femur rotation in iranian population using transepicondylar axes.   methods : from a total of 450 knee ct scans and via consecutive sampling, 150 qualified subjects with normal lower extremities al...

Journal: :journal of dental materials and techniques 0
arezoo arezoo jahanbin 1 dental research center, department of orthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) behrad behrad tanbakuchi department of orthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

the aim of this case report was to introduce an appliance for correcting severe rotation of anterior teeth in the mixed dentition period. a 9-year-old iranian boy with a mixed dentition class i malocclusion complained of a severely rotated of upper right central incisor. there was a mesiodens between the central incisors. the supernumerary tooth was first extracted and then a whip appliance whi...

2005
S. Kralisch M. Fink C. Beckstein

The management of hydrologic catchments typically faces the challenge of keeping a reasonable balance between water quality demands and farming restrictions. In order to handle this problem it is most important to identify farming areas whose land use have a high influence on the nutrient leaching into the receiving stream. This identification can be regarded as a sensitivity analysis (SA). Cha...

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