USE ORGANIC FERTILIZERS IN THE MODERN AGRICULTURE
The paper presents a synthesis of soil fertilization technologies, practices, methods, and measures that can be applied by each farmer within his farm, depending on the local specificity, respecting the environmental protection. Intensive farming with high yields requires large amounts of nutrients that the Romanian soil, even the most fertile, cannot fully provide, being absolutely necessary to supplement it with fertilizers.A part of the applied fertilizers are not consumed by crops and can be lost through surface leakage or infiltration water, which can result in aquatic system pollution. Intensification of agriculture by using both organic and mineral nitrogen-based fertilizers has caused surface waters eutrophication and the accumulation of nitrates in drinking water sources, which can generate serious effects on human and animal health.Adopting the environment-friendly agricultural technologies means both increasing the farmers' interest in the use of organic fertilizers and, implicitly, increasing the requested quantities.The manure used for centuries in agriculture obviously cannot ensure this necessity, which has led to intense research to find new compostable raw materials for the production of new fertilizers to provide nutrient needs for crops, safe and environmentally friendly.According to the Rural Development Regulation no. 1305/2013, at least 30% of the European Agricultural Fund for Rural Development is dedicated to measures that contribute to the achievement of environmental and climate objectives, biodiversity conservation, natural resources protection (especially soil and water), greenhouse gas emission reduction, traditional landscape conservation and agri-environment policies will be implemented through National Rural Development Program 2014-2020.