Soil science

• Macronutrients


  Nutrient elements that are absorbed by plants in large amounts
• Micronutrient elements 


  A type of nutrient elements that absorbs by the plant in smaller amount
• Structural elements


  Carbon, Hydrogen and Oxygen is a type of nutrient elements that comes from water and air. What do you call this type of nutrient elements?
• Manganese 


  Which of the following is a micronutrient?
• NO2-


  Which of the following is a symbol of Ammonium?
• Molybdenum


  The micronutrient element that is absorb by the plant in least amount
• Nitrogen


  Plant nutrient that encourage vegetative growth of plants
• Phosphorus 


  Plant nutrient that is required for energy transfer of ATP and ADP
• Magnesium 


  A micronutrient that is a central component of chlorophyll
• Sulfur


  Nutrient that is essential component of amino acid Methionine, Cysteine and Cystine
• Sulfur


  Nutrient that is a constituent of coenzyme A, Biotin, Thiamine and Glutathione
• Potassium 


  A macronutrient that is not a component of any organic molecule
• Molybdenum 


  Micronutrient that is involve in nitrogen fixation
• Zinc


  Micronutrient which is involve in the synthesis of auxin
• Iron


  Micronutrient which is involve in chlorophyll synthesis
• Calcium


  Nutrient which is a constituent of cell wall
• Boron


  Micronutrient that is important in the translocation of sugars
• Potassium 


  Nutrient that can increase pest and disease resistant
• Mobile nutrients 


  Deficiency of these nutrients mostly on macronutrients can be seen in older leaves or lower part
• Immobile nutrients 


  Deficiency of these nutrients mostly on micronutrients can be seen on younger leaves or upper part
• Micronutrient 


  Needed by the plants relatively in low amount
• Phosphorus 


  Deficiency of this micronutrient can make plants become stunted and shows purple coloration on their leaves
• Potassium 


  Deficiency of this micronutrient shows scorching or burning on their leaf margins
• Potassium 


  When this nutrient is excessive, it leads to nitrogen deficiency
• Calcium


  Deficiency that cause blossom end rot disease in tomato
• Manganese 


  Plant shows interveinal chlorosis on younger leaves
• Iron 


  Micronutrient needed in hemoglobin formation
• Iron


  Deficiency that cause chlorosis on younger leaves
• Calcium 


  A micronutrient that is part of middle lamella and deficient in acid upland soils
• Nitrogen


  A macronutrient that is a component of protein and chlorophyll and is most limiting element in crop production except for legumes
• Calcium


  Considered as one of the lime nutrients
• Nitrogen cycle


  It is a biogeochemical process through which nitrogen is converted into many forms and it involves several processes such as Nitrogen fixation, Nitrification, Denitrification and Volatilization
• Leaching


  A downward movement of water with mineral nutrients and sometimes cause of soil acidity
• Mineralization


  A process where organic N is converted into inorganic N and renders available for plant use
• Immobilization 


  A process where inorganic N is converted into organic N and renders unavailable for plant use
• Nitrite 


  First product of Nitrification
• Infiltration 


  Downward entry of water
• Percolation


  Downward movement of water
• NH4+


  Symbol of Nitrite
• Nitrate


  Final product of Nitrification