Nitrogen and sulphur are fundamental macronutrients for the production of sunflower crop. is required consistently in larger amounts while common urea has more losses due to high solubility. On other hand, application increases oil contents availability essential nutrients (N, P, K). Therefore, combined polymer coated with fertilization might be a promising option which can increase achene yiel...

Sulphur is one of the emerging plant nutrients, required for pulse crops. After nitrogen, phosphorous and potassium, it forth key nutrient nutrition. It taken up by plants in form sulphates from soil. The factors that are responsible wide spread deficiency sulphur excess use high analysis fertilizers, inadequate crop residue, yielding varieties crops its removal plays a pivotal role overall pro...

background & aim: in order study the effect of thiobacillus, sulphur and organic materials on vegetative growth and essence production in lemon balm (melissa officinalis l.) was conducted in pots in field condition at shahrekord, iran on 2008. experimental: the factors were ten soil treatments inclusive 200 kg/ha sulphur, 400 kg/ha sulphur, 600 kg/ha sulphur, 200 kg/ha sulphur + thiobacill...

Sulphur Mustard is a potent chemical warfare agent that was widely used during first world war and Iran ‌Iraq conflict. Over 100,000 Iranians were injured by sulphur mustard and one-third is of them were suffering from late effects until today. This vesicant agent has a lot of acute and chronic destructive effects on the skin, eye and respiratory system. Sulphur mustard via the alkylations of s...

This study investigates removing ash and pyrite sulphur from bitumen by column flotation process. Central composite design (CCD) of response surface methodology (RSM) was applied for modeling and optimization of the percentage of ash and pyrite sulphur removal from bitumen. The effects of five parameters namely the amounts of collector and frother agents, particle size, wash water rate and feed...