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The syllabus for the State Board School Examinations (Sec.) & Board of Higher Secondary Examinations, Tamil Nadu (SBSEBHSE) varies depending on the class and stream (Science, Commerce, Arts). [17] Class 10th (SSLC) Syllabus: The class 10th syllabus covers core subjects like Mathematics, Science, Social Science, language Tamil, English, and ...
Agricultural chemistry often aims at preserving or increasing the fertility of soil with the goals of maintaining or improving the agricultural yield and improving the quality of the crop. Soils are analyzed with attention to the inorganic matter (minerals), which comprise most of the mass of dry soil, and organic matter, which consists of ...
Nammazhvar was born in 1938 in the village of Elangadu in Thanjavur District, Tamilnadu.He graduated from Annamalai University with a B.Sc degree in Agriculture. In 1963, he began working for the Agricultural Regional Research Station, a government organisation in Kovilpatti, as a scientist, conducting trials on spacing and manure levels of various chemical fertilizers in cotton and millet crops.
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. [1] Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities.
In 1907, the American author Franklin H. King discussed in his book Farmers of Forty Centuries the advantages of sustainable agriculture and warned that such practices would be vital to farming in the future. [202] The phrase 'sustainable agriculture' was reportedly coined by the Australian agronomist Gordon McClymont. [203]
Description: This book explained Dalton's theory of atoms and its applications to chemistry. Importance: The book was one of the first to describe a modern atomic theory, a theory that lies at the basis of modern chemistry. [3]: 251 It is the first to introduce a table of atomic and molecular weights.
For example, the manufacture and use of nitrogen fertilizer contributes around 5% of all global greenhouse gas emissions. [30] Livestock farming is a major source of greenhouse gas emissions. [31] At the same time, livestock farming is affected by climate change. Farm animals' digestive systems can be put into two categories: monogastric and ...
Each region in India has a specific soil and climate that is only suitable for certain types of farming. Many regions on the western side of India experience less than 50 cm of rain annually, so the farming systems are restricted to cultivate crops that can withstand drought conditions and farmers are usually restricted to single cropping. [3]