Most legumes have symbiotic nitrogen-fixing bacteria in structures called root nodules. For that reason, they play a key role in crop rotation.When a legume plant dies in the field, for example following the harvest, all of its remaining nitrogen is released back into the soil.
In the soil, the amino acids are converted to nitrate (NO3−), making the nitrogen available to other plants, thereby serving as fertilizer for future crops.
in farm crops
Plants ranging from grasses to edible crops (cereals and roots, etc) are grown on fields:
wheat ,maizeand other cereals
Yes, planting leguminous crops can return nitrogen to the soil. These plants have a symbiotic relationship with nitrogen-fixing bacteria, which convert atmospheric nitrogen into a form that plants can use. When leguminous crops are grown and then incorporated back into the soil as green manure or after they decompose, they enhance soil fertility by increasing nitrogen levels. This practice is beneficial for subsequent crops and promotes sustainable agricultural practices.
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.
Cereals, or cereal grains, are grown throughout much of the world, typically in open, flat areas. Some commonly-grown cereals include wheat, corn, oats, and rice.
rice, tea
no crops cant grow in rivers just think about it
lack of potable water and arable land. the areas along the coast are also very humid during the summer months - not particularly good for cereal crops - fungal problems
Most of Australia's food is grown along the eastern side of Australia near the coast.
According to the CIA World Fact Book the largest crops are;wheat, cereals, sugar beets, potatoes, wine grapes. Wheat, barley, maize, sunflowers, oil-seed rape (colza), grapes, apples, pears, peaches, apricots, figs, olives.
Some crops that are commonly grown along the Indus River include wheat, rice, cotton, sugarcane, and pulses (such as lentils and chickpeas). These crops are well-suited to the fertile soil and the availability of water from the river.