Search Results for: agricultural crop production using technology
Coral reef
Formation See also: Fringing reef, Atoll reef, and The Structure and Distribution of Coral Reefs Most coral reefs were formed after the last glacial period when melting ice caused the sea level to rise and flood the continental shelves. This means that most coral reefs are less than 10,000 years old. As coral reef communities were established on the shelves, they built reefs that grew upwards, keeping pace with the rise in sea level. Reefs that didn’t keep pace could become drowned reefs, covered by so much water that there was insufficient light for further survival. Coral reefs are also found in the deep sea away from the continental shelves, around oceanic islands and as atolls. The vast majority of these ocean coral islands are volcanic in origin. The few exceptions have tectonic origins where plate movements have lifted the deep ocean floor on the surface. In 1842 Charles Darwin published Read more…
Wetland Ecosystem Conservation: A Review
1. Introduction A system is a group of parts that interact through one or more processes (Odum 1983). The term ecosystem was introduced and defined by Tansley (1935), who as “a fundamental organizational unit of the natural world that includes both organisms and their spatial environment.” Ecosystems have since been defined in various ways, and at different spatial and temporal scales (Golley 1993; O’Neill et al. 1986; Evans 1956). Some ecologists define ecosystems on the basis of biotic organisms, populations, or communities. For example, Hutchinson (1978) considered the ecosystem to be the environmental context in which population or community dynamics occur. Others define ecosystems in terms of their abiotic characteristics and processes (Rowe and Barnes 1994). For example, Lindeman (1942) defined ecosystems as “…the system composed of physical, chemical, and biological processes active within a space/time unit.” Regardless of whether the emphasis is on biotic components or abiotic characteristics and Read more…
Windmill Site Selection Using Remote Sensing and Gis- a Case Study in , Andaman India
1. INTRODUCTION The Andaman and Nicobar Islands are the summits of a submarine mountain range lying on the great tectonic suture zone that extends from the eastern Himalayas to the Arakan along the Myanmar border and finally to Sumatra and lesser Sundaes. This archipelago consists of a
Biodiversity and its conservation
BIODIVERSITY AND ITS CONSERVATION By Dr. Ashok Kumar Panigrahi.IntroductionThe word ‘biodiversity’ is a contraction of the term, ‘natural biological diversity’. Biodiversity refers to the range of variations or differentiations among same set of living entities. The term biodiversity is commonly used to describe the numbers, variety and variability of living organisms at the species level. Actually it is synonym of ‘Life on Earth’. It is estimated that there are about 50 million species of plants, animals and microorganisms with 35 thousand plants having medicinal properties, great bulk of it forming food of one another, species differing in physical & chemical characteristics. Plant diversity: is important to animals, herbivores and man, because, it meets the metabolic necessity of the trophic levels with the nutritional values of its fruits and seeds through dietary phytochemicals, primary and secondary.Primary phyto chemicals such as carbohydrates, proteins and fats are necessary for energy production Read more…
Communication for Sustainable Agriculture Production
1. IntroductionThe green, white and blue revolutions gave us food security. The high yielding varieties and new technologies were webbed with chemical farming. Even today we have critical gaps existing in production of food through technology use and at traditional farmer’s field. The chemical farming resulted in the soil degradation, water pollution, soil erosions and soil salinity .By now we face land degradation problems in 173 million hectares which is around 53% of cultivated land. Annually we loose 5000 Million Tones of top soil with NPK losses of 5-8 Million Tones per year. In Mahrastra a survey showed that the depth of black soil was 60 cms in 1910 which has reduced now. About 18% of it has turned as shallow land. Reduced soil depth has resulted into low productivity, increases soil runoffs and drought like conditions. Therefore to avoid these ill effects we have to link strong information and Read more…
Capacity Building and E.extension for Enhancing Agriculture Productivity in India
AbstractThe green, white and blue revolutions gave us food security. The high yielding varieties and new technologies were webbed with chemical farming. Even today we have critical gaps existing in productivity of food grains between technology using farms and traditional farming practices. The chemical farming resulted in the soil degradation, water pollution, soil erosions and salinity. By now, we face land degradation problems in 173 million hectares which is around 53% of cultivated land. Annually we loose 5000 Million Tones of top soil with NPK losses of 5-8 Million tones per year.In Mahrastra a survey showed that the depth of black soil was 60 cms in 1910 which has reduced now. About 18% of it has turned as shallow land. Reduced soil depth has resulted into low productivity, increases soil runoffs and drought like conditions. Therefore to avoid these ill effects we have to link strong information and communication methods Read more…
Agriculture Crop Management and Production Improved by Satellite Remote Sensing Technology and Geographic Information Systems (gis)
Scientists for many years have been using satellite remote sensing technology, utilizing low and medium resolution sensors to improve water balance and farming yield assessment on large geographical scales around the world. With the availability of high resolution satellite sensors such as IKONOS, QuickBird and soon GeoEye-1, the current remote sensing NDVI algorithms utilized have become more accurate and reliable, providing detailed crop information for agriculture management to improve production and crop health.FAO (Food and Agriculture Organization of the United Nations) data indicate that annually 2500 km3 of freshwater is used for agricultural production, which amounts to 70% of the water resources that the world population consumes in a year. China is now consuming more than twice as much as what its ecosystems can supply sustainably, having doubled its needs since the 1960s, as indicated in a new WWF report. With the global population continuing to grow at a high Read more…
Data Warehouse And Its Applications In Agriculture
DATA WAREHOUSE AND ITS APPLICATIONS IN AGRICULTUREK.P.Wagh Dr. Satish R. Kolhe Assistant Professor Reader Gf’s GCOE Jalgaon NMU Jalgaon Kishorwagh2000@yahoo.com srkolhe2000@gmail.com A Data warehouse is a repository of integrated information, available for queries and analysis. Data and information are extracted from heterogeneous sources as they are generated. This makes it much easier and more efficient to run queries over data that originally came from different sources. In other words Data warehouse is a database that is used to hold data for reporting and analysis. Economic foundation and productivity growth depends on agricultural sectors. Agriculture is the driving force behind the way of live and source of earnings for the majority of peoples. More than 60 percents of population are living in rural areas and the majority are farmers. The rural communities as a main producer for country food productivity and food security earn only 11 percents of Gross Domestic Product (GDP). The arrival of Read more…
