Basic Agriculture

AGR-401 Field Crop Production-I AGRON Lectures Introduction Classification of field crops Botanical classification Binomial system Crop families Agronomic Classification Cereals Pulses Oilseeds Fiber Crops Forage Crops Sugar Crops Tubers Vegetables Condiments Medicinal plants Narcotic plants Glossary Introduction It is well established that there are over \(600\) cultivated plant species, with about \(100-200\) species playing a significant role in global trade. However, the most important economic crops are represented by just \(15\) plant species. As a result, these crop species must be categorized or clustered in a useful manner to encourage scientific correspondence, distribution, and retrieval, as well as to foster the survival and enhancement of specific plants. The description of these species is critical for the following reasons: To familiarize oneself with crops. To comprehend the soil and water requirements of various crops....

AGR-506 Arid Zone Agriculture AGRON Lectures Introduction Types of dry climates Arid (or desert ) climates Hot arid climates Cool arid climates Cold arid climates Semi-arid climates Hot semi-arid climates (savannah zones) Mediterranean-type climates Cool semi-arid climates Moisture regimes The dry regions of the world Africa Eurasia North America The Pacific valleys The Intermountain region The Great Plains The Canadian prairies South America Australia Causes of aridity General circulation of the atmosphere The hydrological cycle Zonal systems Main circulation systems Relief Orographic rain Distribution of land and sea Introduction The word arid (from arere to be dry) implies a deficiency of rainfall as the basic characteristic of a dry climate. Hence, the earliest attempts to classify dry climates were generally based on the annual amounts of rainfall. However, the amount of rainfall in dry regions cannot serve as an ade...