resembling a sphere rotating around an axis. A rotation is a circular motion circular movement of an object around a center or point geometry point of rotation . A Three dimensional space three dimensional object rotates always around an imaginary Line geometry line called a rotation axis ... upon itself, or wikt spin spin . A rotation about an external point, e.g. the Earth about the Sun , is called ... Main Rotation mathematics File Rotation illustration.png right thumb Rotation of a planar figure around a point File Rotation v spin Parent 1.png thumb Rotational Orbit v Spin File AxialTiltObliquity.png thumb right Relations between rotation axis, Orbital plane astronomy plane of orbit and axial tilt for Earth . Mathematics Mathematically , a rotation is a rigid body movement which, unlike a translation ..., translations, or combinations of the two. A rotation is simply a progressive radial orientation ... perpendicular to the plane of the motion. If the axis of the rotation lies external of the body in question then the body is said to orbit. There is no fundamental difference between a rotation and a orbit and or spin . The key distinction is simply where the axis of the rotation lies, either within .... If a rotation around a point or axis is followed by a second rotation around the same point axis, a third rotation results. The reverse inverse element inverse of a rotation is also a rotation. Thus, the rotations around a point axis form a group mathematics group . However, a rotation around a point or axis and a rotation around a different point axis may result in something other than a rotation, e.g. a translation. Rotations around the x , y and z axes are called principal rotations . Rotation around any axis can be performed by taking a rotation around the x axis, followed by a rotation around the y axis, and followed by a rotation around the z axis. That is to say, any spatial rotation ... cyclic permutation Euler angles rigid body rotation around a fixed axis rotation group SO 3 rotation ... more details
Infobox Film name The Crop writer George Elliot Australian actor George Elliot starring George Elliot Australian actor George Elliot br Holly Brisley br Rhys Muldoon director Scott Patterson film director Scott Patterson producer David Wood cinematography Roger Lanser editing Michael Horwitz br Tim Wellburn studio Miracle Productions distributor Elliot Bros Film Distribution br Roadshow Entertainment released 18 August 2004 runtime 103 minutes country FilmAustralia language English music Subvision awards budget 4,000,000 AUD The Crop is a 2004 Australian comedy film set during the 1980s. Plot The Crop , is set in the early 1980s in Australia, and is about larrikin nightclub owner, Ronnie Blade Gillette George Elliot , and his barmaid girlfriend Geraldine Holly Brisley . Two months after random breath testing has been introduced, Blade realises he s going broke. Afraid of driving under the influence, his customers are not buying his alcohol grog , they re going out to the carpark to smoke Cannabis drug dope . Like any good businessman, Blade decides he needs a strategy. He decides to grow some dope as a way out of his financial hole. Blade and his best mate, Wack Rhys Muldoon , set about growing their crop of weed on a property owned by the father of his girlfriend but they soon get ... Rob Steele Malone Vincent Stone Dago Tahnee Stroet Tania Bruce Venables Wally Eye Box Office The Crop ...?from moreStories title The Crop publisher Sydney Morning Herald last Byrnes first Paul ... txt s1178581.htm title The Crop work At the Movies Australian TV series At the Movies publisher ABC1 ... Box Office ref Reception The Crop received the prize for Best International Feature ... 1121538954973.html title Sequel to The Crop date 19 July 2005 accessdate 8 August 2011 publisher Fairfax ... groupequals holdingType page 0 parentid query 602683 querytype rec 0 resCount 10 The Crop at the National Film and Sound Archive DEFAULTSORT Crop, The Category 2000s comedy films Category 2004 films ... more details
Wiktionarypar rotationRotation is a circular motion of a body about a center. Rotation may also refer to Physics Differential rotation of objects Optical rotation polarization Rotational spectroscopy Mathematics Rotation mathematics Rotation around a fixed axis , a subset of rotation with more constraints Improper rotation producing an inversion The Curl mathematics curl of a vector field Bitwise rotation , a mathematical operator on bit patterns Music Rotation music , a term referring to the frequency of airplay of a particular song Rotation album , Cute Is What We Aim For s second studio album. Rotate song , a song off Capone N Noreaga s third album Channel 10 . Other Croprotation , a farming practice Job rotation , a business management approach Stock rotation , a retail practice Rotation film , the film of that name. Rotation pool , a type of pocket billiards game In baseball pitching, the Glossary of baseball R rotationrotation is the group of starting pitchers for a team, and the order in which they pitch Robson Rotation , the practice of printing multiple ballots for an election, each having the candidates listed in a different order Clerkship medicine , also known as a rotation, referring in medical education to the later part of training where students spend time in a hospital environment, as opposed to receiving classroom instruction Rotation aviation refers to the act of lifting the nose off the runway during takeoff Display rotation , for the orientation of a page on the display device of a computer See also Rotation group disambiguation disambig cs Rotace rozcestn k de Rotation fr Rotation gl Rotaci n hom nimos hr Rotacija it Rotazione disambigua lb Rotatioun lt Rotacija nl Rotatie ja no Rotasjon nds Rotatschoon pl Obr t ujednoznacznienie pt Rota o ru sk Rot cia fi Rotaatio sv Rotation th ... more details
Unreferenced date July 2008 Break crop is a term for the secondary crop within the practice of sustainable agriculture with intensive agronomy arable farming whereby as part of a croprotation , a physiologically different crop is inserted into the main cropping plan in order to provide a break from the cycle of weed s, Pest organism pests and disease s encountered with the latter. The aim is to optimize yields of the primary crops and therefore income while reducing the use, and cost, of pesticides . Nitrogen fixing Nitrogen fixation can be another soil goal. An example rotation would be winter oilseed rape as a break crop, followed by two crops of winter wheat , then winter barley or setaside . Another common example is maize corn that is typically rotated with cotton plantations. Category Agricultural terminology Category Sustainable agriculture Category Organic gardening Category Biological pest control agri stub ... more details
name nris NRISref 2008a ref The Old Rotation is a soil fertility experiment on the Auburn University campus in Auburn, Alabama . The Old Rotation experiment, which started in 1896, is the third oldest ongoing field crop experiment in the United States and the oldest continuous cotton experiment in the world. It was the first experiment to show that a cotton legume croprotation would allow soil to support a cotton crop indefinitely. The Old Rotation is listed on the National Register of Historic ... could be maintained by growing a crop of legumes on the same land as cotton, but in the winter months when cotton doesn t grow. This rotation of cotton and soybeans has continued uninterrupted since. In addition to the cotton legume rotation, additional rotations have been added in adjacent plots consisting of a cotton corn, cotton corn legume and cotton corn legume soybean rotation. It became evident within a few years that adding the winter legume crop as a rotation was sufficient to restore adequate nutrients to the soil to maintain a yearly cotton crop indefinitely. Experiment The Old Rotation ... in 100 year old experiment the 106th cotton crop grown on the Old Rotation the world s oldest ...Infobox nrhp name Old Rotation nrhp type image TheOldRotation1.JPG caption The Old Rotation at Auburn ... States suffered declines caused by planting the same crop on the same land year after year, a process ... Alabama Agricultural and Mechanical College set up the Old Rotation experiment on a one acre ... without rotation or fertilizer Cotton rotated with winter legumes but not fertilized Cotton ... of the unrotated plots. Miscellaneous The Old Rotation is located adjacent to the Donald E. Davis Arboretum on Lem Morrison Drive in Auburn. The Rotation was placed on the National Register of Historic ... Image TheOldRotation4.JPG Image OldRotation5.JPG gallery See also Cullars Rotation A similar nearby agricultural rotation experiment. National Register of Historic Places listings in Lee County, Alabama ... more details
course system of croprotation whereby a third of the land lay fallow every year and hence taken out of human food, and animal feed, production. It was to be replaced by the four course system of croprotation, devised in England in 1730 by Charles Townshend, 2nd Viscount Townshend or Turnip Townshend ... rotation , the cycle began once more with a planting of wheat or oats, in an average, a thirty percent increased yield Citation needed date January 2010 . See also Croprotation Green Revolution ...In agriculture , crop yield also known as agricultural output is not only a measure of the yield of cereal per unit area of land under tillage cultivation , yield is also the seed generation of the plant itself e.g. one wheat grain produces a stalk yielding three grain, or 1 3 . Citation needed date January 2010 Or date January 2010 The figure, 1 3 is considered by agronomists as the minimum required to sustain human life. ref Pipes, Richard, Russia under the Old Regime Charles Scribner s Sons, NY 1974 p.8 ref One of the three seeds must be set aside for the next planting season, the remaining two either consumed by the grower, or one for human consumption and the other for livestock feed Citation needed date January 2010 . The higher the surplus, the more livestock can be established and maintained, thereby increasing the physical and economic well being of the farmer and his family. This, in turn, resulted in better stamina, better over all health, and better, more efficient work. In addition, the more the surplus the more draft animals horse and oxen could be supported and harnessed to work, and manure, the soil thereby easing the farmer s burden. Increased crop yields meant few ... for improved seed which improved crop yield. Thus allowing the farmer to raise his income by bringing more food to non farming city markets. History Historically speaking, a major increase in crop ... driven on to the turnip fields to eat the crop, trample the leavings under their feet into the soil ... more details
The rotation method is a concept used by the philosopher S ren Kierkegaard in Either Or to describe the mechanism used by higher level aesthetes in order to avoid boredom . The method is an essential hedonism hedonistic aspect of the aesthetic way of life. Kierkegaard likens the rotation method to the croprotation used in agriculture , in which the soil is constantly rotated in order to maximize the use of nutrients for the crops. For the aesthete, one constantly changes what one is doing in order to maximize the enjoyment and pleasure derived from each activity. A consequence of the rotation method would be the aesthete s lack of commitment to any one thing. Commitment requires one to constantly repeat an activity however, for the aesthetic, repeating an activity leads to boredom, as this activity is no longer novel. The rotation method, Kierkegaard argues, would eventually lead aesthetes to a state of Despair emotion despair , because all activities, no matter how unique or new, will eventually become boring I don t feel like doing anything. I don t feel like riding the motion is too powerful I don t feel like walking it is too tiring I don t feel like lying down, for either I have to stay down, and I don t feel like doing that or I would have to get up again, and I don t feel like doing that, either. Summa Summarum I don t feel like doing anything. Either Or , p. 4 ref Kierkegaard, S ren. Either Or . Princeton, 1985. p. 4. ref The aesthete, Kierkegaard predicts, realizing and responding to the futility of one s hedonistic finite aims, will yearn to experience a more meaningful life. ref Watts, Michael. Kierkegaard . Oneworld, 2003. p. 198. ref References reflist External links http www.sorenkierkegaard.nl artikelen Engels 145. 20THE 20ROTATION 20OF 20CROPS.pdf The Rotation of Crops Kierkegaard Category Aesthetics Category S ren Kierkegaard ... more details
Heavy Rotation may refer to Heavy rotation , in broadcating, the repeated airing of a limited playlist of songs or music videos Heavy Rotation Anastacia album Heavy Rotation Anastacia album Heavy Rotation Deceptikonz album Heavy Rotation Deceptikonz album Heavy Rotation song Heavy Rotation song , a song by AKB48 Heavy Rotation , a song by Ciara from Basic Instinct album Basic Instinct Heavy Rotation , a song by Soul Asylum from Hang Time album Hang Time disambig ... more details
. The practical use of crop diversity goes back to early agricultural methods of croprotation and fallow fields, planting and harvesting one type of crop on a plot of land one year, and using a different crop the next based on differences in a plant s nutrient needs. Both farmers and scientists must ...Crop diversity is the variance in genetics genetic and phenotype phenotypic characteristics of plants ... techniques, and of course how a crop tastes. And if a trait cannot be found in the crop itself, it can often be found in a wild relative of the crop a plant that has similar species that have not been farmed or used in agriculture, but exist in the wild. ref Crop Wild Relatives Global Portal. Bioversity International, Dec 5 2008 ref Diversity in a crop can also result from different growing conditions a crop growing in nutrient poor soil is likely to be shorter than a crop growing in more ... of genetic differences a crop may have genes conferring early maturity or disease resistance ... to generation and collectively determine a crop s overall characteristics and future potential. Through ... new crop varieties to meet specific conditions. A new variety might, for example, be higher yielding ... to a more diverse genetic bank. Diversification of harvests and maintaining wild biodiversity in crop ... and species sustainability . ref Jarvis, Devra I. and Camplain, Dindo M. Crop genetic diversity ... crop varieties. It has been estimated that 6 of wild relatives of cereal crops wheat, maize , rice .... ref Crop Wild Relatives Global Portal. Bioversity International, Dec 5 200 ref The wise use of crop .... Crop varieties that are resistant to pests and diseases can reduce the need for application of harmful ... biodiversity and weed suppression in agro ecosystems. Crop and Weed Ecology Group WUR , METIS Wageningen ... of crop diversity for sustainable landscape development. Management of Environmental Quality. Vol ... A Crop Technology Whose Time Has Come. Fleishman and Hillard. June 11, 2008 ref Most importantly, perhaps ... more details
Cyclonic rotation or circulation is movement in the same direction as the Earth s rotation, as opposed to anticyclonic rotation . External links http amsglossary.allenpress.com glossary search?id cyclonic rotation1 Cyclonic Rotation AMS Glossary of Meteorology Category Climate patterns climate stub nl Cyclonale circulatie ... more details
Anticyclonic rotation or circulation is movement in the direction opposite to the Earth s rotation. Compare cyclonic rotation External links http amsglossary.allenpress.com glossary search?id anticyclonic rotation1 Anticyclonic Rotation AMS Glossary of Meteorology Category Climate patterns climate stub nl Anticyclonale circulatie ... more details
attractive, provided sustainable croprotation s exist that are nutrient balanced and preventative ... digestion Biogas Biotech crop Cellulosic ethanol Myriophyllum Non food crop Short rotation coppice Short rotation forestry Table of biofuel crop yields Vegoil div col end References Reflist External ... geograph.org.uk 291522.jpg thumb Elephant grass Miscanthus sinensis is an experimental energy crop Note ... crop farming and bioenergy production via silage methane have been almost entirely overlooked in N ... by weight Crop Oil copra 62 castor oil plant castor seed 50 sesame 50 peanut groundnut kernel ... bioenergy DEFAULTSORT Energy Crop Category Anaerobic digestion Category Energy crops Category ... more details
Wiktionary Cream of the crop may refer to Cream of the Crop , the 1969 album recorded by Diana Ross & the Supremes Cream of the Crop Dead Milkmen album Cream of the Crop Dead Milkmen album , a 1998 compilation album by The Dead Milkmen Discography The Dead Milkmen Cr me de la cr me disambiguation disambiguation ... more details
wiktionary cropCrop may refer to Crop , a plant grown and harvested for agricultural use Crop anatomy , part of the alimentary tract of some animals Crop implement , a modified whip used in horseback riding or disciplining humans as punishment or in BDSM Crop factor , a multiplier factor in digital photography imaging, compared to 35mm film camera focal length, see APS C Crop hairstyle , a woman s short hairstyle CROP polling firm , a Canadian polling and market research company Cropping punishment , the removal of a person s ears as a punishment Cropping animal , cutting the ears of an animal shorter, usually trimming to shape the pinnae Cropping image , to give an image another aspect ratio, or to otherwise remove portions of an image Scrapbooking , also called cropping, the creation of cards and or scrap books in unique and creative ways as a hobby The acronym CROP may stand for Clube Recreativo Os Poseiros, a Portuguese recreational club Council of Regional Organisations in the Pacific Common Relevant Operational Picture See also Docking animal , sometimes called cropping, the removal of the tail of an animal disambig fr CROP it Crop ... more details
In mathematics rotation group may refer to Circle group , the rotation group in two dimensions Rotation group SO 3 , the rotation group in three dimensions Rotations in 4 dimensional Euclidean space , the group SO 4 Orthogonal group , the general rotation group A rotation group or proper symmetry group with fixed point Cyclic group , rotational symmetry group for an object with n fold symmetry in a plane of rotation Point groups in three dimensions Rotation groups Point groups in three dimensions that are rotation groups See also Rotation disambiguation Symmetry group disambiguation mathdab ... more details
Crop mark may refer to in printing , marks placed at the corners of a form to indicate where the page is to be trimmed Cropmark s, in archaeology differential growth indicating buried sites Crop circle s disambig ... more details
adds at least one more dimension of plant diversity to a cash croprotation. Since the cover crop ...Agriculture Cover crops are crop s planted primarily to manage fertility soil soil fertility , soil quality ... qualities of neighboring natural ecosystems. Farmers choose to grow and manage specific cover crop ... is often the most limiting nutrient in crop production. Often, green manure crops are grown for a specific ... provide the required quantity of nitrogen for crop production. In conventional farming, this nitrogen ... through biological nitrogen fixation, types of cover crops known as catch crop s are used to retain ... of the previous crop, preventing it from being lost through Leaching agriculture leaching ... efficiently from the soil Ditsch and Alley 1991 . The nitrogen tied up in catch crop biomass is released back into the soil once the catch crop is incorporated as a green manure or otherwise begins to decompose. An example of green manure use comes from Nigeria, where the cover crop Mucuna pruriens ... by increasing soil organic matter levels through the input of cover crop biomass over time. Increased .... Dense cover crop stands physically slow down the velocity of rainfall before it contacts ..., vast cover crop root networks help anchor the soil in place and increase soil porosity, creating ... Dabney et al. 2001 . Cover crop biomass acts as a physical barrier between rainfall and the soil surface ..., cover crop root growth results in the formation of soil pores, which in addition to enhancing soil ... a large amount of moisture. When the cover crop is incorporated into the soil, or left on the soil surface, it often increases soil moisture. In agroecosystems where water for crop production ..., particularly if climatic growing conditions are good. In these cases, just before crop planting, farmers often face a tradeoff between the benefits of increased cover crop growth and the drawbacks of reduced soil moisture for cash crop production that season. Weed management Thick cover crop stands ... more details
orphan date August 2010 Crop oil or crop oil concentrates are petroleum based additives that are used as adjuvants to increase the efficacy of pesticide s in agriculture agricultural applications. ref cite web title Herbicides and additives Crop Oil publisher Auckland Regional Council url http www.arc.govt.nz environment biosecurity pest plants herbicides crop oil.cfm accessdate 10 June 2010 ref References reflist Category Pesticides agriculture stub ... more details
Unreferenced stub auto yes date December 2009 File Nurse crop, alfalfa under oats.jpg thumb Oats as nurse crop for alfalfa In agriculture , a nurse crop is an annual plant annual crop used to assist in establishment of a perennial plant perennial crop. The widest use of nurse crops is in the establishment of legume legumaceous plants such as alfalfa , clover , and Lotus genus trefoil . Occasionally nurse crops are used for establishment of perennial grasses. Nurse crops reduce the incidence of weeds, prevent erosion, and prevent excessive sunlight from reaching tender seedlings. Often the nurse crop can be harvested for grain, straw, hay, or pasture. Oat s are the most common nurse crop, though other annual grains are also used. See also Companion planting Multiple cropping DEFAULTSORT Nurse Crop Category Crops Category Article Feedback 5 Agri stub ... more details
Rotation operator may refer to Rotation operator vector space Rotation operator quantum mechanics disambig Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. ... more details
In agriculture , a bumper crop refers to a particularly productive harvest yielded for a particular Crop agriculture crop . Example With all the rain we ve had over the last few months, we are expecting a bumper crop this year. The word bumper has a second definition ref name BumperDefinition cite web url http m w.com dictionary bumper publisher Merriam Webster Online Dictionary title Bumper ref meaning something unusually large, which is where this term comes from ref name BumperCropOrigin cite web url http www.word detective.com 112700.html publisher The Word Detective title Is it OK to pet the cow? date November 27, 2000 ref . References Reflist DEFAULTSORT Bumper Crop Category Crops Agri stub ... more details
Crop protection is the branch of horticulture concerned with protecting crop s from pest organism pest s, weed s, plant disease disease and theft . It encompasses Pesticide based approaches such as herbicide s, insecticide s and fungicide s Biological pest control approaches such as cover crop s, trap crop s and beetle bank s Barrier based approaches such as technical textiles Agrotech Agro textiles agrotextiles and bird netting Animal psychology based approaches such as bird scarer s Biotechnology based approaches such as plant breeding and genetic modification See also CAB International . CropLife International Vive Crop Protection horticulture stub Category Crops de Pflanzenschutz et Taimekaitse fr D fense des cultures nl Gewasbescherming pl Ochrona ro lin sv V xtskydd ... more details
A standing crop is the quantity or total weight or energy content of the organism s which are in a particular location at a particular time. The standing crop is the total dry weight of all organisms. See also Biomass ecology External links http www.treesearch.fs.fed.us pubs 8730 Models that predict standing crop of stream fish from habitat variables 1950 85 Category Habitats Category Organisms Category Ecological metrics ecology stub ... more details
Unreferenced stub auto yes date December 2009 In agriculture , a catch crop is a fast growing agriculture crop that is grown simultaneously with, or between successive plantings of a main crop. For example, radish es that mature from seed in 25 30 days can be grown between rows of most vegetable s, and harvest ed long before the main crop matures. Or, a catch crop can be planted between the spring harvest and autumn fall planting of some crops. Catch cropping is a type of succession planting . It makes more efficient use of growing space. Catch crops are also crops that are sown to prevent minerals being flushed away from the soil. By using catch crops, such as grain millet , ... one can keep certain minerals not attached to the humous clay connection such as carbon C and other positively charged elements in the soil for many years. References reflist DEFAULTSORT Catch Crop Category Crops Agri stub cs Meziplodiny de Zwischenfrucht pl Mi dzyplon ... more details
Encyclopedia
top
