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The amount of nitrates in soil can increase due to factors such as excessive fertilizer application, decomposition of organic matter, or runoff from agricultural activities. This increase in nitrates can lead to water pollution and harm ecosystems if not managed properly.
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Why does harvesting crops on farms lower the level of nitrates in the soil?
Harvesting crops removes the plant material that has taken up nitrates from the soil for growth. This reduces the overall amount of nitrates in the soil because the plants are no longer present to continue absorbing nitrates from the soil. Without the plants to utilize the nitrates, the levels decrease over time.
Why does the soil lose nitrates during heavy rain or flooding?
During heavy rain or flooding, excess water can leach nitrates from the soil, washing them away and making them inaccessible to plants. This process is known as leaching, and it occurs because water carries the nitrates deeper into the soil layers or even into nearby water bodies, reducing the amount of nitrates available for plant uptake.
3 Describe two ways in which nitrates can be replaced naturally in the soil?
Nitrates can be replaced naturally in the soil through biological nitrogen fixation, where certain soil bacteria convert atmospheric nitrogen into nitrates. Additionally, cover cropping with leguminous plants can also help replenish nitrates in the soil through the nitrogen-fixing bacteria present in their root nodules.
Describe how nitrates are leached from the soil?
Nitrates are leached from the soil when excess water percolates through the soil, carrying the nitrates with it deeper into the ground or into water bodies. This process happens when there is heavy rainfall or over-irrigation, and can lead to groundwater contamination if not managed properly.
Why do harvesting crops on farm lower the level of nitrates in the soil?
cos d animalz will get less animal protein init nd den dey cnt excrete nd provide ammonia nd sh!t 2 d soil dat makes nitrates init
Why would the level of nitrates in the soil in the beakers increase during an investigation?
The nitrates in the soil in the beakers could increase during an investigation due to the breakdown of organic matter in the soil, the addition of nitrogen-containing fertilizers, or the release of nitrates from decomposing plant material. These factors can contribute to the accumulation of nitrates in the soil over time.
Why does harvesting crops on farms lower the level of nitrates in the soil?
Harvesting crops removes the plant material that has taken up nitrates from the soil for growth. This reduces the overall amount of nitrates in the soil because the plants are no longer present to continue absorbing nitrates from the soil. Without the plants to utilize the nitrates, the levels decrease over time.
What does not increase the amount of nitrogen in the soil?
Plants removing nitrogen from the soil through uptake does not increase the amount of nitrogen in the soil.
Why does the soil lose nitrates during heavy rain or flooding?
During heavy rain or flooding, excess water can leach nitrates from the soil, washing them away and making them inaccessible to plants. This process is known as leaching, and it occurs because water carries the nitrates deeper into the soil layers or even into nearby water bodies, reducing the amount of nitrates available for plant uptake.
3 Describe two ways in which nitrates can be replaced naturally in the soil?
Nitrates can be replaced naturally in the soil through biological nitrogen fixation, where certain soil bacteria convert atmospheric nitrogen into nitrates. Additionally, cover cropping with leguminous plants can also help replenish nitrates in the soil through the nitrogen-fixing bacteria present in their root nodules.
How are soil nitrates replaced?
Soil nitrates are replaced in various ways. One of the most common ways to replace soil nitrate is by suing synthetic fertilizers.
Which material will increase the amount of humus in soil?
minerals
What is one result of weathering?
increase in the amount of soil
How does harvesting increase the amount of nitrogen in soil?
it doesn't, it only removes soil nitrogen
Where do beans get their nitrates from?
They absorb them from the soil where they grow.
Describe how nitrates are leached from the soil?
Nitrates are leached from the soil when excess water percolates through the soil, carrying the nitrates with it deeper into the ground or into water bodies. This process happens when there is heavy rainfall or over-irrigation, and can lead to groundwater contamination if not managed properly.
How do plants get the nitrates and minerals they need?
Plants absorb nitrates and minerals from the soil through their roots. The roots have specialized structures called root hairs that increase the surface area for nutrient absorption. Once absorbed, these nutrients are transported through the plant's vascular system to where they are needed for growth and metabolism.
