Coal-derived Humic Acid; Functions and Significance for Crops

Organic sources are the most important means for sustainable crop production which improve soil fertility, reduce the cost of inputs and save the soil and environment from pollution. The use of chemical fertilizers affect the quality of environment because of excessive nitrate leaching, ammonia volatization, and fixation of large amount of the applied phosphorus. The exploitation of organic fertilizer sources for increasing crop production on sustainable basis has become imperative due to high cost of chemical fertilizers. Organic matter in soil assists plants growth by improving water holding capacity, drought resistance, augments the absorption, release nutrients, and make the soil less vulnerable to leaching and erosion. HUMIC ACID, also known as black gold of agriculture, is a polymeric natural organic compound, performs numerous functions. This book aims at providing the plants scientists with innovative practical information about the benificial effects of Coal-derived Humic Acid on plants specially Sunflower crop. The book has equal importance for the students having agriculture background.