Rhizoobium or nitrogen fixing bacteria lives in the roots of leguminous plants.leguminous plants are not able to use atmospheric nitrogen as sush,so these bacteria convert nitrogen into simpler forms i.e nitrates and nitrits which are easily used up by these plants.
Nitrogen is not very reactive
Nitrogen fertilizer contains nitrates. Nitrates are essential for making protein. The fertilizer may also contain compounds with phosphorus, and potassium. Phosphorus is broken down and combined with other chemicals before the plant is able to absorb it. Phosphorus then combines with other chemicals to form ions. Potassium is an essential element for plant growth. It is commonly applied to gardens, lawns and orchards as part of a balanced fertilizer. Potassium, often called potash, helps plants use water and resist drought. It promotes healthy green lawn grass. Potassium is important to food crops and enhances the size of fruits and vegetables. Nitrogen makes up 78 percent of the earth's atmosphere but this is unavailable to plants and animals until it is turned into a nitrate. Bacteria in the soil turn nitrogen into nitrates. Without it, green plants are weak and smaller than they should be. Too much nitrogen, on the other hand, makes plants unable to withstand frosts or heavy winds. While many chemical fertilizers contain nitrates, there are also natural sources of the element that do not put the environment at as much risk of pollution.
Nitrogen fertilizer contains nitrates. Nitrates are essential for making protein. The fertilizer may also contain compounds with phosphorus, and potassium. Phosphorus is broken down and combined with other chemicals before the plant is able to absorb it. Phosphorus then combines with other chemicals to form ions. Potassium is an essential element for plant growth. It is commonly applied to gardens, lawns and orchards as part of a balanced fertilizer. Potassium, often called potash, helps plants use water and resist drought. It promotes healthy green lawn grass. Potassium is important to food crops and enhances the size of fruits and vegetables. Nitrogen makes up 78 percent of the earth's atmosphere but this is unavailable to plants and animals until it is turned into a nitrate. Bacteria in the soil turn nitrogen into nitrates. Without it, green plants are weak and smaller than they should be. Too much nitrogen, on the other hand, makes plants unable to withstand frosts or heavy winds. While many chemical fertilizers contain nitrates, there are also natural sources of the element that do not put the environment at as much risk of pollution.
nitrogen
Most organisms are unable to make nitrogen directly from the atmosphere. Instead, they rely on nitrogen-fixing bacteria to convert atmospheric nitrogen into a form that can be used by plants and other organisms for essential functions like protein synthesis.
Nitrogen gas (N2) in our atmosphere is an example of a form of nitrogen that humans cannot directly use. Additionally, nitrate (NO3-) in soils is not directly usable by humans and must first be converted by plants into a more bioavailable form of nitrogen.
Nitrogen. The bacterial transformation is needed to break the triple bonds of diatomic atmospheric nitrogen, something plants can't do, so these bacteria fix the nitrogen into a usable form in exchange for plant sugar
At www.fernlea.com, it says "This nutrient is responsible for the healthy green color of your plants. It is an essential part of proteins and chlorophyll, the plant pigment that plays a vital role in photosynthesis. Nitrogen deficiencies result in a yellowing of leaves, and a general slow down in growth."
green plants do not have the "power" to break the triple bond of N2 molecule. in better words, they do not have suitable enzymes. on the other hand, some bacteria have, the so colled "nitrogen fixing bacteria", living on legume plant roots.
Nitrogen.
Nitrogen is an essential nutrient for plants. it is needed for the production of amino acids which make up proteins. it is also needed for the production of enzymes as they are made of proteins. Nitrogen is also the main component of chlorophyll. Without nitrogen, plants are unable to grow and Photosynthesize.