Fertilizers are substances that supply plant nutrients or amend soil fertility. They are the most effective means of increasing crop production and of improving the quality of food and fodder. Fertilizers are used in order to supplement the natural nutrient supply in the soil, especially to correct the (yield-limiting) minimum factor.Fertilizers are soil amendments applied to promote plant growth; the main nutrients present in fertilizer are nitrogen, phosphorus, and potassium (the...
The role of government in the production of agriculture in US has changed in many ways since it first became involved in the production and distribution sectors in 1860. The Department of Commerce (DoC) covers a large spectrum in the distribution of many different types of American goods within the nation and in an international level. The DoC was established in 1903 with the main goal of providing new opportunities to businesses in terms of commerce and that mission still remains today.The...
Global warming is the increase in world's temperatures (Spencer, 2008). Research conducted has revealed that the world's temperature increase due to greenhouse effect. It was first detected in mid 20th century when it was first realized that there was an average increase in temperature of the earth's near surface air and the ocean water (Theodore, 2004). Globaly average temperature has increased with about 0.7 to 1.44 degrees and has been detected in 20th century (Maslin, 2007). It was then...
Food safety is important in promoting on our health and remains in the limelight as severe food-borne illnesses sweep across the nation. Most food-borne illness is the result of eating food that has been contaminated. To say a food is contaminated means it contains substances not originally present in it. The actions and beliefs of those involved in its handling. Thus, the social, culture, and behavior normal experienced by food handlers and their managers are the defining issue in the safety...
In the world today the primary source of fuel for most of our needs come from fossil fuels. These are in the form of coal, natural gas and crude oil. In the petrochemical industry the crude oil is refined through a process of fractional distillation. This breaks apart the larger hydrocarbons into their smaller fractions at varying temperatures in the distillation tower. The heavier fractions containing the most carbon atoms are drawn off at the highest temperatures' and the lighter the...
Electronic waste is a term used to refer to the electronic products that are completing their useful life. Computers, televisions, fax machines and copiers are some of the electronic products that are commonly used in today's technological world. Many of these electronic products can be reused, recycled or refurbished although the electronic waste is one of the fastest growing problems in the world's waste stream (Talbot). The introduction of the electronic waste and recycling act in 2003 saw...
Global warming is the increase in temperature of earth includes global average air and ocean temperatures. A Swedish scientist, Svante Arrhenius was the first man in the world to claim in 1896 that fossil fuel combustion may eventually cause in enhanced global warming. Thomas Chamberlin and Svante Arrhenius predicted that increasing of concentration of carbon dioxide may warm the earth (Enzler, n.d.). Unfortunately, after the discoveries of these two scientists the issue was forgotten for a...
In Trinidad and Tobago, the oil and gas industry contributes to approximately 46% of the GDP (Gross Domestic Product) (The U.S. Department of State, 2008). In recent times however, reserves of this commodity have been on the decline. In the last five years, there has been a steady decline of the total number of barrels of oil generated, with the difference approximating at 42,000 less barrels from 2006 to 2010 (Ministry of Energy and Energy Affairs, Consolidated Monthly Bulletins, 2006 -...
Malaysia is a fast developing country that its change from an agro-based to an industrial nation, has led to an increase in the population. Malaysias population increased rapidly from 6 278 800 in 1957 to an estimated 29,179,952 in July 2012. Thus, the amount of solid wastes generated in Malaysia also increases rapidly. Statistic shows that on average, each Malaysian produces 0.8 kg to 1.2 kg of wastes per day (The Star, 2009). About 23,000 tonnes of wastes are produced each day in Malaysia. ...
When rain falls to the ground, the water does not stop moving. Some of it flows along the land surface to streams or lakes. Some are used by plants. Some evaporate and returns to the atmosphere. And some seep underground, into pores between sand, clay and rock formations called aquifers. Water moves through aquifers much like a glass of water poured onto a pile of sand (EPA, 2010). Only a small fraction (about 2.5%) of earth's water is fresh and suitable for human consumption. The rest (more...