this study is performed in order to study the effect of technical- vocational training on trainee productivity in industrial sector of khorasan and preferring suitable solutions in this field. so labor productivity model was estimated for khorasan industry in period 1985 to 2004. in this model, effects of different variables were investigated on productivity of labor, variables such as: relatio...

A Bulgarian project at Maritsa East power station demonstrated the proper transformation of air pollutants (SOx and NOx) into nitrogen fertilizer. Although this technology has not been put into practice in Bulgaria, it seems feasible on an industrial scale and so it may help to ease Portugal’s reliance on imports of nitrogen fertilizer and thereby contain the outfl ow of Portuguese funds. The d...

in order to study the effects of integrated application of bio-fertilizer and chemical fertilizers on yield and yield components of corn, an experiment was conducted in 2008 in dezful city, (khoozestan province) in a factorial arrangement based on complete randomized block design with four replications. treatments were integrated application of biological and chemical fertilizers in four levels...

This study analyzes the factors influencing gambier productivity, technical efficiency of farming, and affecting farming's efficiency. research was conducted in Lima Puluh Kota Regency, a production center West Sumatra. Data were analyzed using Cobb Douglas stochastic frontier function. The results showed that significantly influenced gambier's productivity labor, NPK fertilizer, plant age, num...

This study aims to estimate the production function of black grape farming. The research was conducted in Buleleng Regency. area taken purposively. sample village is Kalianget Village. size 33 farmers. Sampling done by Simple Random method. data used were primary and secondary data. Data analysis method Cobb-Douglas Stochastic Frontier model. results showed that cultivation technology relativel...

Increased fertilizer input in agricultural systems during the last few decades has resulted in large yield increases, but also in environmental problems. We used data from published papers and a soil testing and fertilization project in Shaanxi province during the years 2005 to 2009 to analyze chemical fertilizer inputs and yields of wheat (Triticum aestivum L.) and maize (Zea mays L.) on the f...

Farmers in developing countries sometimes receive incorrect and misleading information regarding the fertilizer inputs into food production, especially during crises or times of unusually high demand. In the early 2000’s farmers of Thailand were sold fake fertilizer or advised to apply excessive amounts of fertilizers by fertilizer dealers. The problem was so pervasive that a protocol was devel...

abstract background: using non-pharmacological pain relief methods for reducing labor pain has always been one of the major concerns in obstetrics and gynecology. objective: comparing the effects of aromatherapy with jasmine and salvia on pain severity and labor outcome in nulliparous women. materials and methods: in this randomized clinical trial, 156 nulliparous women in labor were randomly s...

Chemical composition of soil organic carbon (SOC) is central to soil fertility. We hypothesize that change in SOC content resulting from various long-term fertilization strategies accompanies the shift in SOC chemical structure. This study examined the effect of fertilization strategies along with the time of fertilizer application on the SOC composition by 13C nuclear magnetic resonance (NMR) ...