نتایج جستجو برای: organic low input production

تعداد نتایج: 2080527  

Journal: :بوم شناسی کشاورزی 0
پرویز رضوانی مقدم محمد بهزاد امیری حمیدرضا احیایی

introduction in recent years, by increasing human knowledge and using different technology on food production, human concerns have increased on safety of food products especially medicinal crops. in order to achieve healthy food production, application of ecological inputs such as organic and biological fertilizers are inevitable. organic fertilizers are fertilizer compounds that contain one or...

2015
Shirley Kuhnen Rudinei Butka Stibuski Luciana Aparecida Honorato Luiz Carlos Pinheiro Machado Filho Alan Fredeen

Pasture-based dairy production is used widely on family dairy farms in Southern Brazil. This study investigates conventional high input (C-HI), conventional low input (C-LI), and organic low input (O-LI) pasture-based systems and their effects on quantity and quality of the milk produced. We conducted technical site visits and interviews monthly over one year on 24 family farms (n = 8 per type)...

فلاح, سیف‌اله, پورعزیزی, مرضیه,

In order to maintain sustainable agriculture and prevent excessive use of chemical fertilizers, supplying part of the plant needs by organic fertilizers is necessary. In this respect, effects of nitrogen (N) source and rate on yield and yield components of forage sorghum was evaluated as a factorial experiment arranged in randomized complete blocks design with three replications at the Research...

     The aim of this study was to investigate the effect of different levels of aflatoxin on the gas production, in vitro fermentation parameters, dry matter and organic matter digestibility of sheep's diet. This experiment was conducted in a completely randomized design with 5 treatments and 4 replicate per treatment. The treatments included 1.diet without aflatoxin and methanol (control), 2.c...

Journal: :علوم باغبانی 0
قربانعلی اسدی علی مومن مینا نورزاده نامقی سرور خرم دل

application of organic manures is one of the most important strategies for plant nutrition compared to chemical fertilizers, especially in organic management of medicinal plants. in order to evaluate the effects of different organic and chemical fertilizers on yield, yield components and qualitative characteristics of isabgol (plantago ovata), a field experiment was conducted based on randomize...

2009
Olof Andrén Thomas Kätterer Holger Kirchmann

Soil carbon changes were modelled over 30 years with the focus on cereal crops, since leys are often managed similarly in organic and conventional agriculture. Other crops were not considered due to difficulties in large-scale cropping of oilseed rape and potatoes organically because of pest problems. Four scenarios were used: 0%, 8% (current), 20% and 100% organic cereal production. Conversion...

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