What is crop rotation?How was it important to farmers?
470634
Farmers would plant different plants in different parts of a field. Imagine a field divided into 4 parts. Before crop rotation was discovered people would just keep planting crops everywhere wearing the soil out. When this was discovered (in the Middle Ages), people would leave one quadrant of the four parts (or quadrant) alone for a season allowing it to recupperate basically. They then switch which field lies fallow every planting season. This allowed for more crops and less droughts and such.
58804
Haha.  Yes, I would think so, because crop circles seem to refer to designs or patterns left in huge fields, that can only be seen from an aerial view.  So, if there were some type of design that involved squares, I think they would still be called crop circles.
1009840
1. Earth's rotation is the reason we have days and nights. Without Earth rotating the sun would shine on one place only and the other side of the planet would be in the dark. Rotation is also the possible reason for its magnetic field.\n\n2. Earth's revolution is the reason for seasons and gravity.
847039
1.Cotton traps heat and prevents absorbing adequate moisture. \n2.Pesticides used in cotton growing destroy the soil chemical balance making it to be less beneficial in agriculture.\n3.Crop rotation and organic farming are some of  the best things to do to keep the earth usable.\n4.Crop rotation is cultivation of different crop varieties in every cropping season. Example: plant corn, after harvest plant peanut before another corn cropping.♥\n5.Crop rotation will help the soil to restore its chemical chemistry and reduce the increasing level of toxic components as the effects of pesticides used in the previous cropping.
385801
to maintain soil fertility crops were 'rotated' , the cultivated area was divided into 4, with one area left uncultivated (fallow) , one area planted with legumes, and the other 2 with grasses(wheat rye etc) and roots( carrots turnips etc. each season the crop planted was moved into the next section, so that the nutrients did not become depleted, unharvested roots and stems were ploughed back in to the soil
1153988
Agriculture generally requires large area of land and is land intensive. Land is ever becoming a scarce resource as world population is keeping exploding as a result of which the existing household per capita land is decreasing and hence people are cutting down forests in search of additional land for agriculture. On the other hand household lands are being monopolized by big commercial farms driving household farmers into towns. Still in some places household farmers are changing int producing high value products that do not need big land area.This has brought about a change in agriculture pattern in many areas of the world.
560742
Advantages: Improved crop yield with better nutrition of the food, curing diseases, preventing diseases.\n\nDisadvantages: For crops, the economic reality is that we produce too much food as it is.  America has an ENORMOUS amount of surplus food. Better nutrition? Nice idea but farmers want to grow more, not better.
545895
Cash Crop, what else.
515626
Fields, in the classical theory, are a great place to plant corn.  Or wheat.  Vegetables do great in fields, if they are properly watered and fertilized.\n\nMaxwell's equations show the equivalence of different kinds of fields, which means you could theoretically plant corn where you had wheat last year.  \n\nIf the farmer is a musician and brings his instrument on his tractor while he plants, you will have harmonica motion.  If his son is also on the John Deere playing is instrument at the same time, you'll have a coupla harmonicas in motion.  \n\nI once knew a generator mechanic, in the Army.  He was pretty good; could fix the little 500 watt generators, all the way up to 20 kw models.  He never made general, though.
785900
There are currently NGO's  doing just that. The problem in the developing nations is the corruption in all areas of government. As volunteers or paid employee's the task can become daunting as technology introduced into these villages that seems antique by our standards is modern to them. Teaching modern farming techniques like rotating crops and good agriculture management empowers the local farmers and improves yield. It is a time consuming venture and water management pratices are very important when well water is the only source. You have a good idea, work with it and have fun.
880016
hi...yes it is very true that while boosting crops with the use of chemical fertilizers  kill the fertility of the land in the long run. with every successive years u have to put more chemical fertilizer than u used in the previous year to boost the crop.\nBut if you use natural fertilizers like fertilizer made of cow dung and other waste material..will not only help to boost ur crop but also increase the fertility of land with every successive year.\nNow a days people also take help of "music" to boost the crop.\nAnd now it is  a proven fact that music does help in it. U have to just put speakers surrounding ur field and with regular interval play some music...and u will definetly get better results.\nGud luck.....
1133826
From the 16th century onwards, an essentially organic agriculture was gradually replaced by a farming system that depended on energy-intensive inputs. Mark Overton assesses the impact of this agrarian revolution.\n Jethro Tull ©  \n \n\n\nPage 1 of 6\n\n\n1. An enduring myth\n2. More food for more people\n3. Crop yields\n4. Farming systems\n5. More food per worker\n6. Find out more\n\n\nPrint entire article  An enduring myth\nFor many years the agricultural revolution in England was thought to have occurred because of three major changes: the selective breeding of livestock; the removal of common property rights to land; and new systems of cropping, involving turnips and clover. All this was thought to have been due to a group of heroic individuals, who, according to one account, are 'a band of men whose names are, or ought to be, household words with English farmers: Jethro Tull, Lord Townshend, Arthur Young, Bakewell, Coke of Holkham and the Collings.'\n\nThese men are seen as having triumphed over a conservative mass of country bumpkins. They are thought to have single-handedly, in a few years, transformed English agriculture from a peasant subsistence economy to a thriving capitalist agricultural system, capable of feeding the teeming millions in the new industrial cities.\n\nAll these details are in some dispute, but there is general agreement that the role of the 'Great Men' as pioneers and innovators has been exaggerated. 'Turnip' Townshend, for example, was a boy when turnips were first grown on his estate, and he could not, as the textbooks tell us, have introduced them from Hanover. Jethro Tull was something of a crank and not, as we have been told, the first person to invent a seed drill, which in any case was not used by farmers on any scale until a century after his treatise Horse hoeing husbandry was first published in 1731.\n\n'Arthur Young, the agricultural writer, has been described as a 'a mountebank, a charlatan and a scribbler'.'\nTo continue, Coke of Holkham was a great publicist (especially of his own achievements), but some of the farming practices he encouraged (such as the employment of the Norfolk four-course rotation in unsuitable conditions) may have been positively harmful. And Arthur Young, the agricultural writer, has been described as a 'a mountebank, a charlatan and a scribbler' by one author, although others see him as a proto-social scientist. Finally, Bakewell's New Leicester sheep was a success, but his Longhorn cattle were not. It seems that only the Collings brothers, who developed the shorthorn cattle breed, can escape criticism. Despite this evidence, the myths associated with these individuals have proved extremely difficult to dislodge from literature not directed at a specialist historical audience.\n\nMore food for more people\n\nA Shorthorn Bull Despite these criticisms, it is still argued that an English agricultural revolution happened in the century or so after 1750. One obvious reason behind the argument is the fact that an expanding population from this time on was largely fed by home production. In 1750 English population stood at about 5.7 million. It had probably reached this level before, in the Roman period, then around 1300, and again in 1650. But at each of these periods the population ceased to grow, essentially because agriculture could not respond to the pressure of feeding extra people. Contrary to expectation, however, population grew to unprecedented levels after 1750, reaching 16.6 million in 1850, and agricultural output expanded with it.\n\n'Low-intensity agricultural system based on fishing and fowling was replaced by a high-intensity system based on arable crops.'\nOne reason output grew was through new farming systems involving the rotation of turnips and clover, although these were part of the general intensification of agricultural production, with more food being produced from the same area of l
156767
they eat part or the whole the crop
1102445
Agriculture\n\nAbout two-thirds of all Indians derive their livelihood directly from agriculture, a proportion that is not much smaller than it was at the beginning of the 20th century. The area cultivated, however, has risen steadily and is now considerablymore than half of the nation's total area, a proportion matchedby few countries in the world. Inthe more fertile regions, such as the Indo-Gangetic Plain or the deltas of the eastern coast, the proportion of cultivated to total land often exceeds 90 percent.\n\n\nAlthough the average farm size is only about five acres (two hectares) and is declining, that figure masks the markedly skewed distribution of landholdings. More than half of all farms are less than three acres in size, while much of the remainder is controlled by a small number of relatively affluent peasants and landlords. Most cultivators own farms that provide little more than a bare subsistence for their families. Further, nearly one-third of all agricultural households own no land at all and, along with many submarginal landowners, must work for the larger landholders or must supplement their earnings from some subsidiary occupation, often the one traditionally associated with their caste.\n\nAgricultural technology has been undergoing rapid change inIndia. Government-sponsored, large-scale canal irrigation projects, begun by the British in the mid-19th century, were greatly extended after independence, but there has been a shift in emphasis toward deep wells (called tube wells in India), often privately owned, from which water is raised either by electric or diesel pumps. Important in several parts of India, especially the southeast, is “tank” irrigation, in which water is drawn from small reservoirs created along the coursesof minor streams.\n\nThe demand for chemical fertilizers also has been steadily increasing, although since the late 1960s the introduction of new hybrid, high-yielding varieties of seeds (HYVs), mainly for wheat and secondarily for  rice, has brought about the most dramatic increases in production, especially in Punjab (where their adoption is virtually universal), Haryāna, western Uttar Pradesh, and Gujarāt. So great has been the success of the so-called Green Revolution that India was able to build up buffer  grain stocks sufficient for the country to weather several years of disastrously bad monsoons with virtually no imports or starvation and even managed to become, in some years, a modest net food exporter. During the same period, the production of coarse grains and pulses, which were less in demand than rice and wheat, either did not increase significantly or decreased. Hence, the total per capita grain production has been notably less than that suggested by many protagonists of the Green Revolution, and the threat of major food scarcity has not been eliminated.\n\nMost Indian farms grow little besides food crops, especially cereal grains, and these account for more than three-fifths of the area under cultivation. Foremost among the grains, in terms of both area sown and total yield, is rice, the crop of choice in almost all areas with more than 40 inches (1,000 millimetres) of average annual precipitation, as well as in someirrigated areas. Wheat ranks second in both area sown and total yield, and, because of the use of HYVs, leads all grains in yield per acre. Wheat is grown mainly on the fertile soils of northern and northwestern India in areas with 15 to 40 inchesof average annual precipitation, often with supplementary irrigation. Unlike rice, which is mainly grown during the kharif (summer) season, wheat is primarily a rabi (cool-season) crop. Other important cereals, in descending order of sown acreage, are sorghum (called jowar in India), pearl millet (or bajra), corn (maize), and finger millet (or ragi). All of these typically are grown on relatively infertile soils unsuitable for rice or wheat, while corn cultivation is also favoured in hilly and mountainous reg
657911
All down to the fact that the biggest cash crop for what is an agrarian society is an internationally illegal narcotic.\n\nTherfore the economy of the nation is based on an illegal activity and therefore corruption has to exist at the highest levels.\n\nThis means that people have a stark option between illegality and life on the breadline, and when you are faced with that choice violence is an easy option.
783574
Corn Belt, major agricultural region of the U.S. Midwest where corn acreage once exceeded that of any other crop. It is now commonly called the Feed Grains and Livestock Belt. Located in the north central plains, it is centered in Iowa and Illinois and extends into S Minnesota, SE South Dakota, E Nebraska, NE Kansas, N Missouri, Indiana, and W Ohio. Large-scale commercial and mechanized farming prevails in this region of deep, fertile, well-drained soils and long, hot, humid summers. The belt produces much of the U.S. corn crop, but agriculture has diversified; soybeans are an important yield. Winter wheat and alfalfa are also significant crops in the area.\n\nhttp://www.infoplease.com/ce6/us/A0813571.html
1099280
What you are seing are crops irrigated by center pivot irrigators.\n\nCenter pivot irrigation is a form of overhead irrigation consisting of several segments of pipe (usually galvanized steel or aluminum) joined together and supported by trusses, mounted on wheeled towers with sprinklers positioned along its length. The system moves in a circular pattern and is fed with water from the pivot point at the center of the arc. These systems are common in parts of the United States where terrain is flat.