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| | Crop rotation - Wikipedia, the free encyclopedia |
 | | Crop rotation is widely practiced in vegetable production, where it is possible to grow a cool-season crop (such as lettuce) in the spring, follow with a warm-season crop (such as tomatoes) in the summer, and then grow a winter crop (such as mache) harvested in early spring. | | | Crop rotation avoids a decrease in soil fertility, as growing the same crop repeatedly in the same place eventually depletes the soil of various nutrients. | | | A crop that leaches the soil of one kind of nutrient is followed during the next growing season by a crop that returns that nutrient to the soil, for example, rice followed by wheat, or rice followed by cotton. |
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http://www.wikipedia.org/wiki/Crop_rotation
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| | Crop Rotation Important Part of Farming |
| | What makes a rotation work from the insect standpoint is that, by and large, it changes the type of plant, for example, from a grass (corn and wheat) to a legume (soybeans). | | | Crop rotation is most beneficial in controlling disease organisms that survive in crop residue, said Don Hershman, UK plant pathologist. | | | Crop rotation and its benefits were a large part of the discussions at the annual wheat conference recently at the UK Research and Education Center in Princeton. |
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http://www.ca.uky.edu/agc/news/2001/Jan/croprotate.htm
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| | Crop rotation and intercropping strategies for weed management. (SA Summer 1993 (v5n4)) |
| | Effect of summer-fallowing and rotation on yield of wheat, barley, and flax. | | | In intercropping systems where a main crop was intersown with a "smother" crop species, weed biomass in the intercrop was lower in 47 cases and higher in 4 cases than in the main crop grown alone (as a sole crop); a variable response was observed in 3 cases. | | | In 12 cases where weed seed density was reported, seed density in crop rotation was lower in 9 cases and equivalent in 3 cases when compared to monocultures of the component crops. |
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http://www.sarep.ucdavis.edu/NEWSLTR/v5n4/sa-13.htm
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| | AY-230 |
| | Crop rotations that included grass-legume sod used to be a common agricultural practice in the Midwest. | | | Rotating crops can reduce the potential for serious insect and disease infestations associated with specific crop residues. | | | However, in the case of row crops, it would be difficult to separate the effects of plant disease from that of residue toxicity. |
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http://www.agcom.purdue.edu/AgCom/Pubs/AY/AY-230.html
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| | Influence of crop rotation and tillage on production of apothecia by Sclerotinia sclerotiorum |
| | Crop rotation had a significant effect on the production of apothecia in all years at both sites (except for Arkell in 1998) and, in general, lower mean numbers of apothecia and (or) clumps of apothecia were recorded in plots planted with corn or winter wheat than with soybean. | | | Treatments included five 2-year crop rotations of continuous soybean, corn–soybean, soybean–corn, winter wheat &; soybean, and soybean – winter wheat in combination with minimum tillage, no tillage with residue chopped after harvest, or no tillage with no disturbance of residue after harvest. | | | Interactions between crop rotation and tillage were only significant in 1996 and 1997 at Marden where apothecia production was greatest in minimum-tillage plots planted with soybean, regardless of the preceding crop. |
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http://www.nrc.ca/cisti/journals/tcjpp/k02-017.html
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| | Growing Flax - Crop Rotation |
| | Flax is predominantly a stubble-sown crop in Manitoba. | | | Crop sequence studies at Melfort, Saskatchewan, have shown that flax produced higher yields on wheat and barley stubble than it did on canola, flax or oat stubble. | | | With adequate weed control, the major factor influencing the yield of flax in a rotation for the Brown and Dark Brown soil zones is the availability of moisture. |
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http://www.flaxcouncil.ca/7.htm
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| | PlantUnd.html |
| | Crop 1 corn (maize) or sorghum (grain crop) | | | In the rotation you may have a fallow when you grow no crop, or a green manure fallow when you grow a legume crop and dig it into the soil to rot before the next crop is planted. |
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http://www.uq.edu.au/_School_Science_Lessons/PlantUnd.html
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| | Crop Rotation in the Vegetable Garden |
| | Vegetable crops in the same botanical family are often susceptible to the same diseases and insects. | | | For crop rotation to be effective, gardeners should not plant vegetables belonging to the same plant family in the same location for two or three years. | | | Obviously, crop rotation in a small garden may be difficult. |
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http://www.ipm.iastate.edu/ipm/hortnews/1998/3-27-1998/rotateg.html
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| | A to Z's of Gardening : Crop Rotation |
| | Crop Rotation is a farming practice where different crops are planted in a certain section of the farm or garden each year. | | | So a crop of corn planted this year is not planted in the same field for the next two or three years. | | | If the same crop is planted each and every year, over time the soil is depleted of the minerals essential for plant growth and health. |
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http://www.gardenersnet.com/atoz/rotate.htm
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| | Organic Farming Is a Winner for Sustainability / November 26, 2004 / News from the USDA Agricultural Research Service |
| | An organic crop rotation is at least as sustainable as no-till farming or chisel tillage in terms of nitrogen loss and corn yields, according to an Agricultural Research Service (ARS) study. | | | Hairy vetch is a key cover crop in a rotation of organic corn, soybeans and wheat now being studied by ARS scientists in Beltsville, Maryland. | | | The five-year study showed that a three-year rotation of organic corn, soybeans, wheat and a legume cover crop had nitrogen losses and corn yields similar to those on land where either chisel-tillage or no-till farming had been used. |
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http://www.ars.usda.gov/is/pr/2004/041126.htm
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| | Crop rotation may help wait out soil pathogen deadly to pumpkins |
| | The 22 vegetable crop seedlings that became infected and developed symptoms of the disease in the study are: beet, carrot, eggplant, green bean, lima bean, radish, snow pea, spinach, Swiss-chard, tomato, turnip, onion, pepper and a long list of vine vegetables including pumpkin, cantaloupe, cucumber, gourd, honeydew melon, muskmelon, squash, watermelon and zucchini. | | | In a recent study, 45 species of crop and weed plants were screened for their susceptibility to P. capsici. | | | Although 22 crop species succumbed to the disease, 14 did not. |
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http://www.eurekalert.org/pub_releases/2004-05/uoia-crm051004.php
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| | Disease resistance and crop rotation |
| | Crop rotation is effective for most diseases, but a few diseases (rust, Stewarts wilt of corn, yellow dwarf of wheat and oats) do not survive this way, so crop rotation will not affect them. | | | Therefore, their populations and the risk of disease can be decreased by crop rotation. | | | Decisions made this winter on crop rotation and variety selection are very important for 1996 disease management. |
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http://www.ipm.iastate.edu/ipm/icm/1996/1-26-1996/disres.html
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| | Choosing Crops for a Crop Rotation |
| | Green manures play a valuable role in the crop rotation for their ability to rebuild the soilÕs structure, conserve moisture, control erosion, and reduce the leaching of nutrients off the farm (see Section 1.6.). | | | small grains) should be seperated by a crop of a different type - a legume or broadleaf crop such as oil radish or buckwheat.nic crops. | | | An organic farmerÕs priority is to prevent loss of nutrients from the farm, and to improve the native soil fertility. |
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http://eap.mcgill.ca/MagRack/COG/COGHandbook/COGHandbook_2_2.htm
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| | " Herbicide Carry-Over Impacts Crop Rotation Options" |
| | Crops differ in their tolerance of herbicides, and it may be safe to grow one crop but not another. | | | KALISPELL -- Crop rotations in Montana typically have consisted of grain - fallow - grain. | | | A more diversified crop rotation may reduce crop pests, improve soil health and hopefully improve economic returns. |
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http://www.montana.edu/wwwpb/ag/caryover.html
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| | Crop Rotation for Improved Wheat |
| | Wheat also serves as an excellent rotation crop for corn and soybeans, allowing populations of pathogens (like soybean cyst nematode and Sclerotinia) to decline before host crops are again planted in the field. | | | A three-year rotation of corn-soybean-wheat appears to be optimum for sustained yield of all three crops. | | | Planting wheat into corn residues greatly increases the risk of a severe outbreak of scab in the wheat crop. |
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http://ohioline.osu.edu/iwy/croprota.html
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| | Vegetable Crop Rotation Chart |
| | Crop rotation now is commonly used by gardeners to control diseases and insects in the vegetable garden. | | | Crop rotation has been used by farmers for many years. | | | The other crops rotate in the same direction, helping to keep your soil makeup balanced, and your garden healthy. |
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http://www.yankeegardener.com/resource/croprotate.html
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| | Around the State for May 14, 1998 |
| | Any rotational crop may be planted following an in-crop application of less than 0.25 pt/A and a normal wheat, barley, or oat harvest. | | | Oats, sorghum, and annual or perennial grass crops may be planted at least 12 MAA in areas that received 20 inches or more of precipitation during the growing season. | | | At least 75% of the small grain, canola, field pea, and grain corn is planted. |
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http://www.ag.ndsu.nodak.edu/aginfo/entomology/ndsucpr/Years/1998/May/14/state_14may98.htm
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| | Safflower Production, Crop Rotation |
| | It is a good rotation crop for wheat, barley, tomatoes, corn, or sugarbeets in either a dry-farmed (non-irrigated) or irrigated crop rotation system. | | | Successive safflower crops should not be planted, however, because of the danger of serious damage from rust. | | | Safflower crops grown on soils previously planted to rice have been harmed by phosphorus deficiency. |
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http://agric.ucdavis.edu/crops/oilseed/saff7rotate.htm
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| | Crop Rotation |
| | Crop rotation can also break the cycles of pest and disease problems that build up in soils planted repeatedly to the same crop.The idea is to plan your rotation so that no two crops subject to similar diseases follow one another within the disease’s incubation period. | | | The aim of rotation is threefold: to balance nutrient demands, foil insect and disease attacks, and deter weeds. | | | A good crop rotation plan is a sort of seasonal dance in which the crops move from spot to spot, and it helps create a garden that is constantly new and intriguing. |
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http://www.care2.com/channels/solutions/outdoors/93
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| | Factsheet about crop rotation |
| | In a rotation, crops that require the same soil treatments are kept together as far as possible, the whole growing area receives the same overall treatment over the course of the rotation. | | | Related crops are prone to the same soil-living pests and diseases - and moving them around in an organised rotation helps to prevent the build up of problems in the soil. | | | If annual vegetable crops are grown in the same place year after year, there is a risk that soil borne pests and diseases will become a problem, and that plant health and vigour will decline. |
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http://www.hdra.org.uk/factsheets/gg19.htm
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| | New corn rootworm disrupts corn-soybean crop rotation |
| | This is bad news for some farmers in the Eastern Corn Belt, who use crop rotations between soybeans and corn to control the pest. | | | That is bad news for farmers in the Eastern Corn Belt, who use corn-soybean crop rotation to control the pest. | | | Because the new variant thrives in soybean fields, it increases the risk of economic injury to corn that is planted in a field that grew soybeans the year before. |
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http://www.purdue.edu/UNS/html4ever/9709.Stuart.rootworm.html
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| | Tending the land |
| | To prevent the land from becoming depleted, the farmer rotates the crop he plants in each of his fields, making certain that the demanding ones are not grown on the same parcel of land for several years running. | | | Farmers have almost always practiced some form of crop rotation, varying what is planted in a field from year to year to preserve the soil. | | | Besides conserving soil nutrients, crop rotation is an effective means of combating weeds. |
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http://collections.ic.gc.ca/chip/english/farming/tending.htm
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| | Crop_Rotation |
| | Flax is predominantly a stubble-sown crop in Manitoba. | | | Crop rotation is a major component of organic farming and gardening. | | | Crop rotation is one of the most powerful tools that a farmer has... |
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http://www.mtginsider.com/MTG1/MTGConcepts/30/Crop_Rotation.html
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| | 60 Ways - 42. Use Crop Rotation and Plant Diversity To Control Insects |
| | Crop rotations can work well for pests that are relatively nonmobile, that feed on specific crops, and that overwinter in the soil as eggs or partially grown larvae. | | | Crop rotations cannot solve all insect problems, but they help manage some of the worst pests, such as northern and western corn rootworm. | | | Use crop rotation and plant diversity to control insects |
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http://www.thisland.uiuc.edu/60ways/60ways_42.html
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| | UConn IPM:Vegetables:Diseases:Rotation |
| | The present crop and all related plants or alternate hosts for the disease must be kept out of the field. | | | Many diseases build up in the soil when the same crop is grown in the same field year after year. | | | Only those crops not susceptible to the disease should be grown there. |
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http://www.hort.uconn.edu/ipm/veg/htms/rotate.htm
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| | Rice in the Crop Rotation |
| | Since a sugarcane crop will normally last three years (one harvest per year), and two successive sugarcane crops are usually grown between rice crops, a total of two rice harvests (plant and ratoon) and six sugarcane harvests benefit from the laser leveling. | | | As with most grain crops, the profit margin from a typical rice crop is relatively small. | | | Tillage operations for most crops grown in the EAA are fairly similar and are done before every crop. |
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http://edis.ifas.ufl.edu/AG123
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| | [No title] |
| | The use of crop rotation has, and continues to be, the main pest management strategy for corn rootworms in Illinois and across the Corn Belt. | | | We believe that because of the intense crop rotation in east-central Illinois, corn producers may have selected inadvertently for a strain of western corn rootworm that lays eggs in soybean fields. | | | For many years, the practice of growing corn in rotation with soybeans, wheat, oats, or alfalfa provided excellent control of corn rootworms because their eggs are laid almost exclusively in cornfields, and larvae must feed on corn roots the following season to complete their life cycle. |
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http://www.inhs.uiuc.edu/chf/pub/surveyreports/may-jun96/rootworm.html
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| | Crop Rotation |
| | Rotations reduce pesticide use by naturally breaking the cycle of weeds, insects and disease. | | | Crop rotations in Wisconsin typically include corn, legumes, and small grains. | | | Reduce the potential for nitrate leaching to groundwater by rotating crops that provide nitrogen (alfalfa, clover, soybeans) with crops that use nitrogen (corn, wheat) |
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http://lwcd.org/croprotation.htm
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| | ECOFARMING: Selecting Corn and Grain Sorghum Hybrids, Planting Dates, and Planting Rates in a Winter Wheat--Row ... |
| | Because of limited moisture, ecofallow corn or sorghum is planted at lower plant populations than irrigationd crops, but the hybrids need to be able to respond when adequate moisture is present. | | | A farmer's past experience, soils, climates, herbicides used, time of herbicide application, equipment, and which crop works best in each farming system will be the primary factors in deciding which crop to grow. | | | The average yield of the two crops is relatively close, but the relationship varies from year to year for most areas. |
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http://www.ianr.unl.edu/pubs/FieldCrops/g884.htm
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| | [No title] |
| | Crop rotation can be a valuable tool to manage certain insect pests in field and vegetable crops. | | | When weather is favorable for FHB, and crops are in susceptible stages, an abundance of spores of F. graminearum assures a high levels of FHB, regardless of previous crop or tillage. | | | Rotation is particularly effective against some soil species that overwinter in immature stages. |
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http://www.uky.edu/Agriculture/kpn/kpn_00/pn001009.htm
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| | Crop Rotation |
| | To prevent the build up of pests and diseases in the soil and to help the vegetables in their nutrient needs, your crops need to be rotated. | | | Vegetables also have various mineral needs and continuous cropping of one particular crop can lead to the levels of nutrients in the soil becoming unbalanced. | | | Salad crops can be fitted in around the others as catch crops. |
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http://www.powen.freeserve.co.uk/advanced/CropRtn.htm
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| | Cornucopia Farm & Garden |
| | A cover crop is just that-- a crop sown to cover a fallow garden area. | | | Cover crops enhance nutrient cycling in your farming system by taking up nutrients that otherwise might leach out of the soil profile. | | | While growing, cover crops can slow soil erosion, outcompete weeds, provide cover over the ground so no light reaches it and so no weed seeds germinate, and to help air and water permeate the soil. |
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http://www.farm-garden.com/primers/2/crop-rotation.htm
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| | Royal Horticultural Society - Gardening Advice: Crop Rotation |
| | The principle of crop rotation is to grow specific groups of vegetables on a different piece of land each year. | | | Pest and disease control: Soil pests and diseases tend to attack specific plant families, so by rotating crops life-cycles are broken and build-up is reduced. | | | Changing crops from year to year minimises deficiencies and allows the soil to replenish. |
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http://www.rhs.org.uk/advice/profiles1200/crop_rotation.asp
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| | Crop rotation and polyculture |
| | is the cultivation of another crop in the spaces available between the main crop. | | | Traditional farmers till date follow the systems of crop rotation, multi-cropping, inter-cropping and polyculture to make maximum use of all inputs available to them, including soil, water and light, at a minimum cost to the environment. | | | Leaf fall and other crop residues in combination add more value to the soil or compost heap they become a part of, again because of the nutritional mix. |
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http://www.satavic.org/cropping_systems.htm
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| | Spiritual Sky Organic Gardening - organic crop rotation |
| | Crop rotation can be slightly different for every garden, due to space available, climate, choice of veges etc. The general rule can also be fairly vague because of it. | | | Plant groups are rotated according to their nutrient needs, and to avoid pest and disease problems, and it works well! | | | When you rotate the crops grown in each area, you will notice a balance in your garden, healthier soil and greater yields of harvest! |
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http://www.spiritualskyincense.com/crop-rotation.htm
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| | Effect of crop rotation and tillage system on sclerotinia stem rot on soybean |
| | A 3-year study was done to determine if crop rotation and tillage, moldboard plowing then mulch tillage (MP + MT), mulch tillage (MT), and no-till (NT), affected the population density of sclerotia and apothecia, incidence of SSR, and soybean yield. | | | Effect of crop rotation and tillage system on sclerotinia stem rot on soybean | | | Key words: sclerotinia stem rot, soybean, crop rotation, mulch tillage, moldboard plowing, no-till. |
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http://pubs.nrc-cnrc.gc.ca/tcjpp/k02-049.html
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| | [No title] |
| | Cotton, peanut, and pearl millet for grain are planted in the summer. | | | Voluminous literature is available to indicate the benefits of nutrients in broiler litter for certain crops, such as corn. | | | The goal of the research is to predict supplemental fertilizer needs in an intensive cropping system receiving variable rates of broiler litter and satisfy those needs with starter-, foliar-, and side dress-applications of fluid fertilizers. |
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http://www.griffin.peachnet.edu/caes/cotton/rer/pg06.htm
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| | Sustainable Agriculture Tour -- Crop Rotation |
| | Intensive cropping of potatoes, requiring heavy equipment, is a major cause of soil compaction. | | | In fact, some farmers are searching for other viable crops to increase the rotation to four or five years. | | | Rotations can break the cycle of pests, reducing the need for costly alternative control measures. |
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http://www.peisland.com/agrtour/cropro.html
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| | No. 26: Three-Field Crop Rotation |
| | This meant farmers had to break their holdings into three fields -- one to be planted with wheat or rye in the fall, for human consumption; a second to be used in the spring to raise peas, beans, and lentils for human use and oats and barley for the horses. | | | Then someone found that a field could be used two years out of three if it were planted with one crop in the fall and a different crop in the spring, a year and a half later. | | | But three-field crop rotation required people to rearrange real estate and to change their social order. |
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http://www.uh.edu/engines/epi26.htm
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| | Indy3 |
| | Therefore, the representation of all cultivated crops has to be the most important criteria when a sampling strategy for a landscape section has to be designed. | | | his slide underlines, that the temporal dynamics is mainly determined by the crop rotation, whereas the different soil conditions modify the absolute values and dynamics to a lesser extent. | | | Since this study was continued after the differentiation in landuse in fall 1992, we could evaluate the effects of site conditions and cultivated crops on the temporal variability and thus obtained also a database for the calibration of a N-turnover simulation model. |
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http://www.gsf.de/iboe/expertn/simulation/indy96/indy3.htm
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| | www.GovExec.com - Crop rotation (6/26/01) |
| | To rejuvenate the soil, farmers rotate their crops. | | | When farmers continually plant the same crop in the same field, the crop will diminish in quality and quantity over time. | | | They plant a crop with a lesser monetary value, but with long-term benefits that outweigh the short-term losses. |
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http://www.govexec.com/dailyfed/0601/062601coach.htm
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| | Agronomic Crops Team On-Farm Research Projects 2002 |
| | Comparison in Yield from the Two Sources of Nitrogen by Crop Rotation. | | | No significant differences in yield were noted with the two sources of nitrogen fertilizer in the soybean-corn plot or the corn-corn in 2002. | | | Comparing Sources, Rates, and Crop Rotation Effects on Corn Yield Response to Nitrogen on Lakebed Soils |
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http://ohioline.osu.edu/sc190/008.html
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| | The effects of tillage, crop rotation, and Roundup Ready crops on arthropod populations |
| | The effects of tillage, crop rotation, and Roundup Ready crops on arthropod populations | | | Kansas State University, Department of Entomology, 123 Waters Hall, Manhattan, KS The effect of various tillage and herbicide practices on arthropod populations occurring on various field crops and the possible effects of Herbicide Resistant Crops (HRC's) on target and nontarget organisms are an area receiving widespread interest and concern. | | | These interactions were evaluated by assessing arthropod populations in three target areas (above ground, soil surface, and ground dwelling) within a Roundup Ready corn and soybean system. |
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http://esa.confex.com/esa/2002/techprogram/paper_6300.htm
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| | Organic Eprints - 247: Plant protection in an organic crop rotation experiment for grain production |
| | While mechanical weed control can be carried out in systems without catch crops, it is not possible to do so in systems with catch crops without affecting the establishment of the catch crop. | | | Since the results are only from the two first years of the experiments, it is not possible to conclude anything about the crop rotations as such. | | | The plant protection carried out in the Danish crop rotation experiment is described. |
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http://www.orgprints.org/00000247
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