TAILIEUCHUNG - Plant physiology - Chapter 5 Mineral Nutrition

MINERAL NUTRIENTS ARE ELEMENTS acquired primarily in the form of inorganic ions from the soil. Although mineral nutrients continually cycle through all organisms, they enter the biosphere predominantly through the root systems of plants, so in a sense plants act as the “miners” of Earth’s crust (Epstein 1999). The large surface area of roots and their ability to absorb inorganic ions at low concentrations from the soil solution make mineral absorption by plants a very effective process. After being absorbed by the roots, the mineral elements are translocated to the various parts of the plant, where they are utilized in. | Chapter 5 Mineral Nutrition MINERAL NUTRIENTS ARE ELEMENTS acquired primarily in the form of inorganic ions from the soil. Although mineral nutrients continually cycle through all organisms they enter the biosphere predominantly through the root systems of plants so in a sense plants act as the miners of Earth s crust Epstein 1999 . The large surface area of roots and their ability to absorb inorganic ions at low concentrations from the soil solution make mineral absorption by plants a very effective process. After being absorbed by the roots the mineral elements are translocated to the various parts of the plant where they are utilized in numerous biological functions. Other organisms such as mycorrhizal fungi and nitrogen-fixing bacteria often participate with roots in the acquisition of nutrients. The study of how plants obtain and use mineral nutrients is called mineral nutrition. This area of research is central to modern agriculture and environmental protection. High agricultural yields depend strongly on fertilization with mineral nutrients. In fact yields of most crop plants increase linearly with the amount of fertilizer that they absorb Loomis and Conner 1992 . To meet increased demand for food world consumption of the primary fertilizer mineral elements nitrogen phosphorus and potassium rose steadily from 112 million metric tons in 1980 to 143 million metric tons in 1990 and has remained constant through the last decade. Crop plants however typically use less than half of the fertilizer applied Loomis and Conner 1992 . The remaining minerals may leach into surface waters or groundwater become attached to soil particles or contribute to air pollution. As a consequence of fertilizer leaching many water wells in the United States no longer meet federal standards for nitrate concentrations in drinking water Nolan and Stoner 2000 . On a brighter note plants are the traditional means for recycling animal wastes and are proving useful for removing deleterious .

• Sinh học
• Mineral Nutrition
• Plant Cells
• Energy
• Enzymes
• Water Balance
• Plants
• Translocation
• Water and Solutes
• Mineral nutrients
• Root growth
• Root development
• Root growth of crop plants
• Role of mineral nutrition
• Genomic status
• Chemical and mineral composition
• Human nutrition
• Mineral composition
• Genomic groups grown in India
• Turkish Journal of Agriculture and Forestry
• Tạp chí Nông Lâm nghiệp
• Chromium toxicity in plants
• Chromosomal behavior
• Mineral nutrient status
• Plant growth and nutrition
• Root Absorption
• Soil Fungi
• Plant Interaction
• Plant Soil
• Microorganism Interactions
• Microorganism Interaction
• Abiotic Stress
• Phytoremediation
• Biofortification
• Nanoparticles
• Plant Antioxidative
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp