They have nodules on their roots which contain nitrogen fixing bacteria. These take the nitrogen from the air and convert it to nitrogen compounds in the soil which plants use as nutrients. In short, using leguminous plants increases the fertility of the soil.
Legumes have the ability to "fix" nitrogen- move it from the air, to the soil in a form that other plants can use as fertilizer.
Besides producing an edible crop legumes capture Nitrogen in the soil.
Growing leguminous plant after nonleguminous plant restores soil fertility by root nodulation of leguminous plant.
Legumes are important for two reasons. One, the bacteria on their roots convert atmospheric nitrogen into ammonia, which is a form of nitrogen that plants can utilize. Two, many types of legumes are important food crops. As a result, legumes are the most commonly used plants in crop rotation. Legumes can be grown on nitrogen depleted soil and will replenish the soil's nitrogen levels for future crops, and at the same time they provide useful food for humans.
Farmers learned to be careful in choosing the plants and animals used for breeding. The breeding of plants or animals with desirable traits in order to produce more offspring with those traits is called selective breeding. Using selective breeding results in better crops.Some of the crops resists pests and diseases.Other crops are bigger,stay fresh longer, or taste better.
Charles Darwin & Alfred Russel Wallace first proposed natural selection and evolution. The actual process of modifying plants and anilmals had been known for centuries as it is used by farmers to create new breeds of animals and crops.
early farmers who cultivated crops and domesticated animals
Any organism needs food , habitable space and favorable surroundings to liveSimilarly a plant needsnutrients namely macro and micro nutrientssufficient sunlightwaterair (CO2 ,O2 , N2 in leguminous plants )sufficient space etc.Here by sufficient space I mean that there should not be any competition between two plants for space to live (like weeds compete with crops in fields )Similarly there should not be competition for sunlight between any two plants(like in forests tall plants cover the short plants and prevent sunlight to fall on them)Here, I also want to specify that soil is not necessary for a plant to live .You should concern Hydroponics & Aeroponics for details.
in farm crops
leguminous plants are grown after one yield because it increases a fertility of the soil leguminous plants are containing highly nitrate in it it also helps in grows of crops by this ways we can get good yield it also helps our farmers to lead a life by this ways our countries per capita income rises by this ways we can alives a name of India as agricultural countries
Farmers.
Leguminous fodder crops include:CloverAlfalfaSanfoinBird's Foot TrefoilLaspadenzaCicer MilkvetchField PeasNon-Leguminous fodder crops include:TimothyOrchard grassCornBarleyTriticaleSmooth Brome GrassMeadow Brome GrassKentucky Blue GrassBlue Gamma GrassBermuda GrassBuffalo GrassRed Canary GrassJohnson GrassIt should be noted that all grasses even those not listed here are non-leguminous fodder crops.
Leguminous crops belong to the Fabaceae family, they are flowering plants that have pods (or legumes) and enable the storage of nitrogen-rich material: includes peas, beans, clover, alfa alfa etc.
The people called "Farmers".
It is important for farmers to cultivate their farms so the plants or crops grow nicely.
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.
The Aztec farmers watered their plants by waiting for rain to give them water.
rats are enemy of farmers because rats eat their crops or plants
The farmers give water to the plants and then when the plants grow tall and are soften enough to eat, then the farmers harvest the plants. this how the farmers in canada harvest their plants and cereals and grains.
Basically any crop that has a high protein value (almost all leguminous crops do) examples are beans, alfalfa, clover, and soy.