Answer:
Nitrobacter is added to the soil by farmers in order to increase the level of nitrates in the soil.
Explanation:
Nitrobacter is a type of bacteria which converts nitrites into nitrates. Nitrites is more toxic which cannot be used by the plants while nitrate is less toxic and used by the plants as a food source. It takes 2 to 5 weeks to increase the level of nitrates in the soil by using Nitrobacter.
Answer:
By adding organisms that can convert nitrites to nitrates to the soil.
Explanation:
In order to increase the concentration of soil nitrates, the farmer needs to add organisms that can convert the nitrites to nitrates.
Nitrites are generally toxic to plants. They need to be converted to nitrates which is the only usable form to plants. Nitrites are converted to nitrates by organisms such as Nitrobacters, Nitrosospira, Nitrosococcus and Nitrosolobus.
Hence, in order to reduce toxicity to plants by nitrites and increase the concentration of nitrates in the soil, the farmer needs to find a way of introducing organisms that can convert the nitrites to nitrates into the soil.
