In the recent past, productivity of agricultural soils worldwide was on the decline. This prompted the fall of per capita availability of food grain from 510 g per day in 1991 to 463 g per day by 2004. These declining trends across the world were attributed to ever growing population, lowered incomes of populous nations, discovery of new uses such as bio-fuels from agricultural products, and weather based abnormalities associated with climate change often culminating in decline in rainfall (Sidhu and Kamal, 2007). The sustainable development of a region involves not only protection and reclamation of natural resources particularly soil and land, but also a scientific basis for the management of the environment. Resources should be managed in a sustainable manner. Having examined issues involved in irrigation, for example, water supply and remembering that no matter what we do to improve supply, water itself is inadequate in quantity and quality (Mudiare, 2007). It is therefore necessary to look into how to manage the limited supply of water for greater benefits of the farmers.
The land is a key environment and natural resource assets in Agriculture. It is also the case that the viability of arable land has a direct relationship with productivity. Land degradation caused by soil erosion is a major threat to the sustainability of agriculture. Soil erosion is one of the main forms of land degradation in Ghana, a problem that has been studied and researched by numerous scholars both local and abroad. Since 2006, the agricultural sector´s contribution to Gross Domestic Product has declined, possibly because of the negative effects of land degradation i.e. soil erosion challenges among others. The paper assesses the cost of land or soil degradation in the Agricultural Sector and its effect on the economy of Ghana with a focus on the on-site effects of soil erosion on agricultural productivity. The study draws on the productivity loss and nutrient replacement cost approaches in estimating the cost of soil degradation in the agricultural sector.
Reduced agricultural productivity, deteriorated soil health, escalating production costs, heavy reliance on non-renewable resources, depleting soil organic carbon, reduced microbial diversity, water contamination, chemical residues in food grains and health risk to the population are the main reason to think for substituting the nutrient requirement of the crop through organic inputs. In present work the efficiency of organic farming was evaluated. The results of present investigation showed that the organic treatment combinations increased the productivity of soybean and wheat crops and resulted in higher income as compared to the conventional one. Besides the increased yield and returns, the organic treatments significantly enhanced soil organic carbon and its fractions; and improved soil health in terms of soil physical, chemical and biological properties.
This book provides a fresh perspective on the ever-growing relevance of input-output analysis in problem solving. It is based on the ´´19th National Conference of the Input-Output Research Association of India (IORA)´´, held in 2017 in Mumbai, India. The conference promoted the exchange of ideas on input-output analysis and related methods among economists, government officials, policymakers, academicians and industrialists. The book captures the unique ideas of prominent scholars, extends the basic ´´input-output framework,´´ analytical tool, outlines the possible impacts of some major policy decisions adopted by the Government of India, and puts forward concrete policy suggestions. In addition, it highlights the versatility of the Leontief model, which is currently being extended to cover a diverse spectrum of policy issues, ranging from agricultural productivity to science and technology and from carbon hotspots to energy and environmental consequences. A perfect blend of theory and application, the book provides a realistic outlook on sensitive economies and interdependencies between sectors.
Endocrine Causes of Seasonal and Lactational Anestrus in Farm Animals:A Seminar in the CEC Programme of Co-ordination of Research on Livestock Productivity and Management, held at the Institut fur Tierzucht und Tierverhalten, Mariensee, Bundesforschumgsanstalt fur Landwirtschaft (FAL) October 2-3, 1984
Endocrine Causes of Seasonal and Lactational Anestrus in Farm Animals:A Seminar in the CEC Programme of Co-ordination of Research on Livestock Productivity and Management, held at the Institut für Tierzücht und Tierverhalten, Mariensee, Bundesforschumgsanstalt für Landwirtschaft (FAL) October 2-3, 1984 Current Topics in Veterinary Medicine. Softcover reprint of the original 1st ed. 1985