نتایج جستجو برای: conservation of soil

تعداد نتایج: 21196506  

Journal: :journal of agricultural science and technology 2014
m. haghjou b. hayati d. momeni choleki

in recent decades, large investments have been made to introduce soil conservation methods, but most of these efforts have had limited success in achieving the goals. as a result, attempt to identify the factors deterring or promoting adoption of soil conservation practices is important. therefore, this study aimed to investigate factors affecting adoption of soil conservation practices by rain...

Conservative agriculture is considered as an alternative to tackle the need for increased agricultural production based on sustainable agriculture activities with the aim of increasing production and product stability along with preserving the environment. Tillage is one of the most important factors affecting soil structure. Selection of appropriate tillage systems varies according to the cond...

Farida Abubakari Fariya Abubakari Victor Owusu

Soil erosion is one of the most important forms of land degradation that threatens continued and sustained agricultural production in Ghana. The most severely affected areas are the three northern regions especially Upper East Region, where large tracts of land have been destroyed by water erosion leading to soil depth reduction and decline in soil fertility. This study was carried out in Talen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1389

چکیده توان بالقوه تجاری سلولازها و کاربردهای گوناگون آن ها در بسیاری از صنایع انگیزه ای قوی برای تحقیق در این زمینه طی چند دهه گذشته بوده است. با توجه به کاربردهای فراوان این آنزیم در صنایع غذایی? در این پژوهش تصمیم به جداسازی ریزسازواره های تولید کننده سلولاز از خاک درختان انار، انگور، خرمالو و گردو حیاط دانشکده کشاورزی تربیت مدرس، گرفته شد. در این بین خاک درخت خرمالو به دلیل دارا بودن تعداد ...

Journal: :انسان و محیط زیست 0
مهران مجرد آشناآباد هیات علمی گرایش اکولوژی، دانشگاه پیام نور علیرضا روحانی هیات علمی دانشگاه پیام نور.

in future, soil erosion will be a great challenge for biosphere. if the soils today are notprotected carefully hunger crises all over the world will be widespread. the present article endeavorsto survey soil erosion process and approaches to prevent it. furthermore the article tries to review therelation between soil character and soil production capability shedding light on the effect of erosi...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
داود مومنی چلکی دانش آموخته کارشناسی ارشد مدیریت کشاورزی، دانشکده کشاورزی دانشگاه تبریز باب اله حیاتی دانشیار گروه اقتصاد کشاورزی دانشکده کشاورزی دانشگاه تبریز قادر دشتی دانشیار گروه اقتصاد کشاورزی دانشکده کشاورزی دانشگاه تبریز ایوب رضایی مربی گروه اقتصاد کشاورزی دانشکده کشاورزی دانشگاه تبریز

land degradation due to soil erosion has been well pointed out as one of the most serious ecological and economic problems that some such south asian countries including iran are faced with. although high investment has been made, particularly in introduction of soil conservational mechanical practices, the level of acceptance of these practices has been low and while a high rate of erosion con...

Journal: :international journal of environmental research 0

the study investigated secondary school students' environmental awareness in india and iran. nine hundred and ninety-one students were selected through the stratified random sampling technique from 103 secondary schools of mysore city (india) and tehran city (iran). subjects consisted of 476 boys and 515 girls. they were assessed using the environment awareness ability measure (eaam). resu...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2014
fariya abubakari farida abubakari victor owusu

soil erosion is one of the most important forms of land degradation that threatens continued and sustained agricultural production in ghana. the most severely affected areas are the three northern regions especially upper east region, where large tracts of land have been destroyed by water erosion leading to soil depth reduction and decline in soil fertility. this study was carried out in talen...

Journal: :ecopersia 2015
abbas farshad

soil, a 3-dimensional component of the landscape, or simply a natural body in a soilscape with a given geopedological setting, was modeled by jenny as s = f (climate, organism, relief, parent material, time). to map such a complex body, the concept ‗pedon’ –the smallest volume that can be recognized as a soil had to be defined. classically, soil is known to function as provider, controller, reg...

Journal: :international journal of agricultural science, research and technology in extension and education systems 0
bahram mohammadi golrang assistant professor, watershed management department, agricultural and natural resources of khorasan razavi province center. mashhad, iran s.h.r sadeghi professor, department of watershed management engineering, faculty of natural resources, tarbiat modares, iran ali vahedi research expert, watershed management department, agricultural and natural resources of khorasan razavi province center. mashhad, iran.

the purpose of this study is to assess farmers’ attitude toward the soil conservation practices in the kushk-abad catchment basins in the province of khorasan razavi. a sample of 200 farmers was randomly selected from 1200 farmers living in kardeh catchment basin. data collection was done through a questionnaire that was administered in 2014. validity of the questionnaire was confirmed by a pan...

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