By B. Chandrasekaran; K. Annadurai; E.Somasundaram
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Extra info for A Textbook of Agronomy
It believed that Gods were the foremost among agriculturists. According to ‘Amarakosha’, Aryans were agriculturists. Manu and Kautilya prescribed agriculture, cattle rearing and commerce as essential subjects, which the king must learn. According to Patanjali the economy of the country depended on agriculture and cattle-breeding. Plenty of information is available in ‘Puranas’, which reveals that ancient Indians had intimate knowledge on all agricultural operations. Some of the well known ancient classics of India are namely, Kautilya’s‘Arthashastra’; Panini’s ‘Astadhyayi’; Patanjali’s ‘Mahabhasya’; Varahamihira’s ‘Brahat Samhita’; Amarsimha’s ‘Amarkosha’ and Encyclopedic works of Manasollasa.
Production 1. Weather 2. Pollution 3. Desertification 1. 2. 3. 4. 5. 6. 7. 8. Variety Weed Pests and Diseases Soil health Water (poor quality) Farm machinery Post harvest technology Market facilities III. Socio-economic 1. 2. 3. 4. 5. 6. 7. ). The geology of Indian sub continent is as follows: I. Timeline of Mesozoic Era (~251 Ma to ~66 Ma) A. Triassic period ( ~251 Ma to ~204 Ma) - This period was the earliest period of the Mesozoic era, or the corresponding system of rocks, marked by the first appearance of the dinosaurs.
Productivity and production in the technologically advanced agriculture of the developed countries rose to heights that would have been unbelievable half a century ago, mainly due to introduction of high yielding varieties (HYVs) responsive to inputs of fertilities and irrigation water, besides increase in area under cultivations. Developing countries presented a different picture. Only about a third of their population (excluding China) lived in countries with satisfactory performance in agricultural production.