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well, by rotating the fields, the farmers give the soil a chance to naturally restore nitrogen and other nutrients.
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How did the earths atmosphere change composition to become todays nitrogen and oxygen atmosphere?
your question is... How did the Earth`s atmosphere change composotion to became today`s nitrogen and oxygen atmosphere? Answer: it happend with the help of solar untraviolet (uv) radiation,the very thing what we worry about now for its cancer-causing ability
Why did World War 2 lead to the permanent end to isolationism?
The world learned it must work together to maintain peace, restore devastated countries, help those in need, restore global trade and they formed the United Nations to promote global communication and prevent future world wars. It discovered that isolationism was too idealistic. The Cold War forced the situtation anyway.
Does an earthworm have jaws?
Earthworms do not have jaws. They suck their nutrition through their mouth by the help on the pharynx and this food is churned in the gizzard after passing trough the esophagus and or being stored in the crop.
How do earthworms improve garden health?
The opening up of passageways through the soil and the leaving of nutrient rich organic matter are two ways in which earthworms improve garden health. The passages that they open in their movements through soil encourage the presence of air and water pore spaces. Pore spaces encourage appropriate levels of air and moisture below ground. They thereby discourage compaction and erosion.The matter that earthworms leave in soil comes in the form of droppings. These droppings are high in such important nutrients as nitrogen. Plants only can take nitrogen in soluble form. Nitrogen that otherwise is unavailable to plants becomes available once it passes through and out of earthworm.
What is the difference between a planet's rotation and a planet's revolution?
Earth rotates on its axis and it revolves around the sun. Both things conserve earth's angular momentum. Each rotation is a day, and each solar revolution is a year. The days and years both help us mark the passage of time. Other than that, there are not too many similarities.
What is crop rotation and how do peanuts help it?
Crop rotation is planting different crops in different years. This prevents pulling out all the nutrients by a specific type of crop. Peanuts and other legumes help return nitrogen to the soil. Rotation improves the crop yields.
Which crop is grown between two cereal crops to restore the fertility of soil?
A legume crop is typically grown to help restore the nitrogen levels.
Is crop rotation helpful?
Yes, extremely. When plants are planted that drain the soil of nutrients, rotating the field with a plant such as peas or peanuts, can help restore the soil.
Explain why not planting a crop and then ploughing in the fall might help a farmer restore nitrogen and phosphorus levels in the soil?
When the plant stores the nitrogen in the roots, it produces a lump on the root called a nitrogen nodule. The roots can reserve the Nitrogen and Phosphate for a very long time.
What is the system of crop rotation used in the later middle Ages and how it increased the amount of food being grown?
In the Middle Ages, one important improvement was the three field system of crop rotation, in which a field would be planted with one crop in one year, a different crop the next year, and no crop in the third year so it could lie fallow and recover. Prior to this, a different system was used, but the three field system increased the amount of available land for farming by a third. This system of crop rotation meant that more people could be fed by each farmer, and this was one of the important factors in the growth of towns and cities.
What is the name of the plants that help restore nitrogen to the soil?
Tulip
What are the plants that help restore nitrogen to the soil?
the pea family
How can crop rotation help maintain the fertility of soil?
Crop rotation can help maintain the fertility of soil by slowing down nutrient depletion. Different crops may use different or fewer nutrients.
What is the name of crop that is grown alternately?
The growing of different kinds of crops on a piece of land in a preplanned succession is known as crop rotation. In the rotation of crops, leguminous crops like pulses, beans, peas, groundnut and Bengal gram are sown in-between the seasons of cereal crops like wheat, maize and pearl millet. The leguminous plants are grown alternately with non-leguminous plants to restore the fertility of the soil. When the cereal crops like rice, wheat, maize are grown in the soil, it uses up a lot of nitrogenous salts from the soil. If another crop of cereal is grown in the same soil, the soil becomes nitrogen deficient. So by rotation a leguminous crop is grown. There plants have the ability to fix atmospheric nitrogen to form nitrogen compounds through the help of certain bacteria present in their root. These nitrogen compounds go into the soil and make it more fertile. After the leguminous plants utilize some of the nitrogen compounds, the rest of it is left in the soil to enrich it. Thus, planting a leguminous plant will result in nitrogen rich soil and when a cereal is grown in this soil there is increase in food grain production.
Which plants help to restore nitrogen to the soil?
Legumes. Peas, beans clover etc.
Why do farmers plow a crop of legumes into the ground rather than harvest it?
They use it to restore soil nitrogen, because it improves the soil structure for better harvests.
Do pulse crops cannnot fix atmospheric nitrogen with the help of root nodules?
the mechanism how pulse crop fix atmospheric nitrogen.
