Phosphorus is an essential macro-nutrient for plant growth and sustainable soil management. Phosphorus nutrition can be challenging in acidic soils (e.g. Queensland) and alkaline soils (e.g. South Australia). To achieve sufficient nutrition‚ the soil needs to have a relatively high pH‚ high organic matter content‚ and moist conditions. Specific soil orders such as Vertosols‚ Kandosols‚ Sodosols‚ Rudosols‚ and Calcarosols‚ lack the requirements for phosphorus nutrition. The availability of phosphorus
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Gravimetric Determination of Phosphorus in Fertilizer Samples ------------------------------------------------- Results and Discussion More than 50% of fertilizers are composed of nitrogen‚ phosphorus and potassium because these three nutrients are essential but are deficient in soils. To ensure good quality of fertilizers‚ it is significant that the amounts of these nutrients are quantified. In this light‚ gravimetric principles are of much use. The objective of the experiment is to determine
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Phosphorus is the best Element that you can buy in the market anywhere in the world for the use of fire to things like pesticide. Phosphorus was discovered in 1669 by a man named Hennig Brand in Hamburg‚Germany when he was preparing it from buckets of urine because urine contains high quantities or dissolved phosphorus. The Element was named Phosphorus because it comes from a Greek word called phôs (light) and phoros (bearer) which means “bringer of of light”. Phosphorus which has the Element symbol
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Carbon‚ Phosphorus‚ and Nitrogen Cycles By: Amy Gentry There are three importation cycles that the environment. The three cycles are carbon‚ phosphorus and nitrogen cycles. These cycles are part of photosynthesis. These are a chain that keeps everything going in the word. These cycles keep animal alive and plants and people breathing. Carbon cycle is an Importation one of the cycle on earth. You get carbon atoms from co2 then become carbon atoms of the organic molecules are making up the plant
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(unknown) The phosphorus cycle is representative of the cycles of all the biologically important mineral nutrients. The origin of these elements is in the rock and soil minerals of the lithosphere‚ examples include iron‚ calcium‚ and potassium. The impact of humans in this cycle is the use of phosphorus containing fertilizers. Phosphorus is used to make fertilizers‚ animal feeds‚ detergents and other products. Unfortunately the amount of phosphorus has tripled the amount of phosphorus reaching the
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Carbon‚ Phosphorus and Nitrogen Cycles Humans have a great impact on each of the Carbon‚ Phosphorus‚ and Nitrogen cycles in the Ecosystem. The carbon cycle starts with the reservoir of the carbon dioxide in the air‚ the carbon atoms move from carbon dioxide through photosynthesis into atoms of organic molecules that form the plants body. These carbon atoms are then further metabolized and are eaten and turned into tissue that all organisms in the ecosystem use. Half of the atoms are respired
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Guess Paper – 2009 Class – XII Subject – CHEMISTRY p-BLOCK ELEMENTS (GROUP-15 REASONING) Q1 Give reasons: i) Nitrogen exists as diatomic molecules whereas phosphorous exist as tetra atomic molecules. ii) Molecular nitrogen is not particularly reactive. iii) NCl3 gets readily hydrolyzed while NF3 does not. iv) Nitrogen does not form pent halides like phosphorous. v) Bond angle of ammonia is higher than phosphine. vi) Ammonia is a good complexing agent.
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Kinetic and Thermodynamic Reaction Condition Brandon Bullock 2/10/15 Objective The purpose of this experiment is to test kinetic theory by running several reactions and determine which product are formed under kinetic conditions and which products are formed under thermodynamic conditions. Kinetically controlled products have low transition states. This makes it easy for the product to be formed at low temperatures
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WHAT IS TORQUE? Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis‚ which we will call the pivot point‚ and will label ’O ’. We will call the force ’F ’. The distance from the pivot point to the point where the force acts is called the moment arm‚ and is denoted by ’r ’. Note that this distance‚ ’r ’‚ is also a vector‚ and points from the axis of rotation to the point where the force acts. (Refer to Figure 1 for a pictoral
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Biology Computational Systems Biology Lecture 3: Enzyme kinetics Tue 17 Jan 2006 with the collaboration of Luna De Ferrari 1 Images from: D. L. Nelson‚ Lehninger Principles of Biochemistry‚ IV Edition‚ W. H. Freeman ed. A. Cornish-Bowden Fundamentals of Enzyme Kinetics‚ Portland Press‚ 2004 A. Cornish-Bowden Enzyme Kinetics‚ IRL Press‚ 1988 Computational Systems Biology Summary: • • • • • • 2 Simple enzyme kinetics Steady-state rate equations Reactions of two substrates
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