SOilIntroduction Soil plays a vital role in our ability to cultivate crops. Throughout human history‚ our relationship with the soil has affected our ability to cultivate crops and influenced the success of civilizations. This relationship between humans‚ the earth‚ and food sources affirms soil as the foundation of agriculture. Soil testing is necessary for knowledge of characteristic of the soil‚ quantity of fertilizer is needed so that fertilizers are used only as needed‚ not too less or too
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Name: Date of experiment: 04/02/12 Date of report: 04/03/12 Title: Oxidation – Reduction Activity Series Purpose: To determine relative oxidizing and reducing strengths of a series of metals and ions. Oxidation and reduction reaction occur simultaneously side by side. A reduction reaction occurs only if an oxidation reaction occurs and vise-versa. Electrons are given in oxidation while in reduction electrons are gained. Oxidizing agent is a chemical substance which has a large tendency to
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Sample Paper – 2012 Class – X Subject –Chemistry Chemical Equations and reactions Very Short Answer (1 marks each) Write the name and formula of compounds forms between a. Potassium and iodine ion .b.Sodium and sulphide ions . c. Aluminums and chloride ions 2. Why does milk sour when kept for a long time/ 3. What happen when hydrogen combine with oxygen in presence of electric current/ 4. Define electrolysis. 5. What is decomposition reaction? Give an
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Major differences between Site Mixed Slurry (SMS) and Site Mixed Emulsion (SME) Explosives 1. SME is in fact a plant made product (emulsion matrix) which need only to be sensitized by entrapment of gas bubbles either by‚ chemical gassing or addition of substantial quantity of porous ammonium nitrate (AN) prills‚ to form explosive. 2. SMS is truly a Site Mixed Slurry explosive in the sense that all intermediate ingredients (nearly five) are brought to field in a specially designed
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USE OF CHARCOAL AS A SOIL AMENDMENT IN RUBBER (HEVEA BRASILIENSIS) PLANTATIONS: EFFECTIVENESS IN YOUNG BUDDING POLYBAGGED PLANTS Submitted by thayer on Thu‚ 10/14/2010 - 10:35 Title | Use of charcoal as a soil amendment in rubber (Hevea brasiliensis) plantations: Effectiveness in young budding polybagged plants | Publication Type | Conference Proceedings | Year of Conference | 2010 | Authors | Dharmakeerthi‚ R. S.‚ Chandrasiri J. A. S.‚ and Edirimanne V. U. | Editor | Dharmakeerthi‚ R
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Statement of the Problem This study was conducted to determine the knowledge and farming management practices as a basis for a training program for Ilocano Farmers. Specifically‚ it sougth to answer the following questions: 1. What is the profile of the respondents in the Province of Ilocos Sur in terms of the following: a. Age‚ b. Gender‚ c. Educational background‚ d. Trainings attended‚ e. Income from rice farming‚ f. Farming experience‚ g. Land tenure‚ h. Land area‚ i. Variety of rice‚ and j
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SUMMARY Fertilization Recommendations Based on Soil Chemical Analysis Cacao farm folk (Theobroma cacao L.) in South Sulawesi‚ North Luwu‚ Reski Nur Fatimah AM * K4120787‚ 2010.50 pages‚ Based on Guidance‚ PU: Ir.Abdul Madjid‚ MP ** and DPA: Ir. Sugiyarto‚ MP ***‚ Department of Agribusiness Management from the State Polytechnic of Jember. One of the biggest areas of cocoa farmers in Indonesia‚ North Luwu. One of the important problems in the cultivation of cocoa is fertilization. Lack of fertilizer
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Biochemical Oxygen Demand (BOD) Biochemical Oxygen Demand‚ BOD‚ as it is commonly abbreviated‚ is one of the most important and useful parameters (measured characteristics) indicating the organic strength of a wastewater. BOD measurement permits an estimate of the waste strength in terms of the amount of dissolved oxygen required to break down the wastewater. The specifics of the analysis are discussed in detail in Standard Methods for the Examination of Water and Wastewater. The BOD test is
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Antoine Lavoisier: Who‚ What‚ When‚ Why‚ and How? Lavoisier is regarded as the founder of modern chemistry. Born in Paris‚ he studied both law and science‚ but after graduating concentrated his attention on science. He invested his money in a private tax-collecting company‚ the Ferme Generale‚ and thereby became rich enough to build a large and well-equipped laboratory. He then proceeded to study combustion. During the 18th century combustible matter was thought to contain a substance called
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Antoine Laurent Lavoisier was a French nobleman who lived from the years 1743-1794. Despite his nickname as the “Father of Chemistry”‚ Antoine was not only a chemist special in that field. He studied botany‚ astronomy‚ arithmetic‚ and economics‚ but this allowed him to publicly serve under the French Revolution. He stated the first version of the law of conservation of matter‚ recognized and named oxygen‚ disproved and changed the phlogiston theory‚ and helped to reform chemical nomenclature. Lavoisier
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