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Topic: Crop rotation

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	Crop rotation - Information from Reference.com
		Crop rotation or Crop sequencing is the practice of growing a series of dissimilar types of crops in the same space in sequential seasons for various benefits such as to avoid the build up of pathogens and pests that often occurs when one species is continuously cropped.
		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.
		The choice and sequence of rotation crops depends on the nature of the soil, the climate, and precipitation which together determine the type of plants that may be cultivated.
	www.reference.com /search?q=Crop+rotation (0 words)

	Highbeam Encyclopedia - Search Results for Crop rotation
		crop rotation The practice of growing different crops in different years on the same land, in order to prevent the soil's nutrients from being exhausted and to reduce the risk of a build-up of diseases and pests specific to one crop.
		Residual effects of cotton-based crop rotations on soil properties of irrigated Vertosols in central-western and north-western New South Wales.
		Effect of Crop Rotation and Cultivar Resistance on Seed Yield and the Soybean Cyst Nematode in Full-Season and Double-Cropped Soybean.
	www.encyclopedia.com /SearchResults.aspx?Q=Crop+rotation (0 words)

	Crop Rotation for Improved Wheat
		A three-year rotation of corn-soybean-wheat appears to be optimum for sustained yield of all three crops.
		Crop rotation is the most effective method to reduce pathogen populations that affect the three crops in the sequence.
		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.
	ohioline.osu.edu /iwy/croprota.html (179 words)

	Search Results for "Crop rotation"
		...to restore prosperity by redistricting and by appointing undertakers to supervise fixed crop rotation and to maintain a mounted militia.
		The biennial beet is often used in crop rotation.
		At the turn of the century, much of Norwegian land was farmed without crop rotation, and Norway did not represent a major exporter of foodstuffs....
	www.bartleby.com /cgi-bin/texis/webinator/sitesearch?FILTER=&query=Crop+rotation (0 words)

	Crop Rotations for Increased Productivity
		Crop rotation is a planned order of specific crops planted on the same field.
		Crop rotation also means that succeeding crops are of a different genus, species, subspecies, or variety than the previous crop.
		Crop rotation, in combination with cultural practices plus necessary fungicides, is the most desirable method of disease control.
	www.ag.ndsu.edu /pubs/plantsci/crops/eb48-1.htm (1821 words)

	Sustainable Cycles of Policies: Crop Rotation as a Metaphor
		The rotation of agricultural crops is an interesting "earthy" practice to explore in the light of the mind-set which it has required of farmers for several thousand years.
		Crop rotation is the alternation of different crops in the same field in some (more or less) regular sequence.
		Given the widespread sense of increasing impoverishment of the quality-of-life, consideration of crop rotation may clarify ways of thinking about what is being depleted, how to counteract this process, and the nature of the resources that are so vainly (and expensively) used as "fertilizer" and "pesticide" to keep the system going in the short-term.
	www.laetusinpraesens.org /docs/metcrop.php (878 words)

	Crop rotation Summary
		Crop rotation is the practice of growing a series of dissimilar type of crops in the same space in sequential seasons to avoid the buildup of pathogens and pests that often occurs when one species is continuously cropped.
		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.
		The choice and sequence of rotation crops depends on the nature of the soil, the climate, and precipitation which together determine the type of plants that may be cultivated.
	www.bookrags.com /Crop_rotation (2976 words)

	Crop Rotation Important Part of Farming
		Trimble said farmers need to consider the benefits of crop rotation versus monoculture as they look at their enterprise budgets to determine what is best for their operations.
		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.
		Crop rotation is most beneficial in controlling disease organisms that survive in crop residue, said Don Hershman, UK plant pathologist.
	www.ca.uky.edu /agc/news/2001/Jan/croprotate.htm (667 words)

	Sustainable Cycles of Policies: Crop Rotation as a Metaphor
		The rotation of agricultural crops is an interesting "earthy" practice to explore in the light of the mind-set which it has required of farmers for several thousand years.
		Crop rotation is the alternation of different crops in the same field in some (more or less) regular sequence.
		Given the widespread sense of increasing impoverishment of the quality-of-life, consideration of crop rotation may clarify ways of thinking about what is being depleted, how to counteract this process, and the nature of the resources that are so vainly (and expensively) used as "fertilizer" and "pesticide" to keep the system going in the short-term.
	laetusinpraesens.org /docs/metcrop.php (878 words)

	The Gardener's Network - A to Z's of Home 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.
		In reverse, a different crop will sometimes return missing minerals to the soil as the plant dies and decomposes, or is turned into the soil.
		So a crop of corn planted this year is not planted in the same field for the next two or three years.
	www.gardenersnet.com /atoz/rotate.htm (0 words)

	Crop rotation key to healthy garden: Home & Garden: The Seattle Times
		By rotating your crops — that is, planting leafy vegetables one season, followed by root vegetables, then flowering, then fruit — you're making your soil healthier, reducing insect and disease problems and giving your plants the nutrients they need.
		If other crops not bothered by the disease are planted in that soil for a couple of years, it should not build up.
		Growing legumes as cover crops, then digging the roots and chopped plants into the soil, releases that extra nitrogen, where it is available for the next crop.
	seattletimes.nwsource.com /html/homegarden/2003592160_gardencrop281.html (880 words)

	Choosing Crops for a Crop Rotation
		In this way field crops can be contracted for in advance which means that the farmer shares the risk with the distributor on what tonnage is eventually taken off the field.
		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.).
		A considerable percentage of nitrogen fertilizer never reaches the crop; it is lost to the atmosphere as nitrogen gas, nitrous oxide, or ammonia, or to the groundwater as nitrate.
	www.eap.mcgill.ca /MagRack/COG/COGHandbook/COGHandbook_2_2.htm (1531 words)

	Soil Management and Fertilizer Use: Crop Rotation
		Table 2-4, Corn Yield Response to Rotation, provides an example of the type of response to crop rotation that is possible.
		Cover crops in the rotation may also have an impact on diseases and pests, either positive or negative (refer to the section Cover Crops, for potential impacts of various cover crops).
		Table 2-5, Various Crop Rotations and Their Potential Negative Impacts, displays various crop rotations that are recommended, cautioned against or not recommended depending on their impact on the crop production system.
	www.omafra.gov.on.ca /english/crops/pub811/2croprot.htm (911 words)

	Can crop-rotation produce higher yield?
		In practice, generally the main crop is sowed in abundance, and the seeds of companion crop is sowed lesser.For example, if you sow vetches, you use more seeds of vetches, and less seeds of barley, if you choose barley as companion crop.
		Crop rotation as a means to control to insect pests is most effective when the pests are present before the crop is planted have no wide range of host crops; attack only annual/biennial crops; and do not have the ability to fly from one field to another.
		Know the family where your crops belong to make sure that you plant on the next cropping a crop that belongs to a different family than the previous one.
	resources.alibaba.com /topic/40646/Can_crop_rotation_produce_higher_yield_.htm (874 words)

	Crop Rotations for Increased Productivity
		Crop rotation is a planned order of specific crops planted on the same field.
		Crop rotation also means that succeeding crops are of a different genus, species, subspecies, or variety than the previous crop.
		Rotating to a different crop such as wheat on barley ground usually results in higher grain yields when compared to continuous cropping of wheat.
	www.ext.nodak.edu /extpubs/plantsci/crops/eb48-1.htm (1821 words)

	AY-230
		Crop rotations that included grass-legume sod used to be a common agricultural practice in the Midwest.
		Crop rotation, on the other hand, reduces the potential for serious infestations of pests associated with a specific crop residue.
		Changing crop species usually breaks the cycle of a disease organism, which is a major reason why yields are normally higher in rotations than in monocultures.
	www.ces.purdue.edu /extmedia/AY/AY-230.html (2981 words)

	Crop Rotation in Organic Gardens: Maximize your success in your organic garden with crop rotation based on your records.
		Crop Rotation in Organic Gardens: Maximize your success in your organic garden with crop rotation based on your records.
		Crop rotation is a cultural practice that requires record keeping.
		As you plan crop rotation, vegetables are classified by three groups; root crops such as beets, carrots and turnips; cabbage family also known as (brassicas) such as broccoli, Brussels sprouts and cabbage; and legumes and salad crops such as beans, peas, sweet peppers, tomatoes, lettuces and other leafy greens.
	organicgardens.suite101.com /article.cfm/crop_rotation_from_your_organic_ga (476 words)

	Crop rotation and intercropping strategies for weed management. (SA Summer 1993 (v5n4)) (Site not responding. Last check: )
		Crop rotation resulted in emerged weed densities in test crops that were lower in 21 cases, higher in 1 case, and equivalent in 5 cases in comparison to monoculture systems [see Table 1].
		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.
		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.
	www.sarep.ucdavis.edu /NEWSLTR/v5n4/sa-13.htm (852 words)

	Crop Rotation \| Farm & Garden (Site not responding. Last check: )
		Crop rotation is the practice of growing a different crop each year on the same piece of ground.
		Rotating crops increases the biodiversity of the farm both within and on top of the soil.
		Crop rotation breaks many weed and other pest life cycles, improves nutrient availability and utilization, and helps build healthy soil especially where sod crops are grown.
	www.farm-garden.com /backyardgardener/crop_rotation (1144 words)

	Putting the Right Spin on the Value of Crop Rotation \| Pioneer Hi-Bred Limited
		A crop production system is composed of all of the choices a producer makes to grow a crop and ensure a profit … such as tillage method, soil fertility levels, variety selection, crop rotation, and disease, insect and weed management strategies.
		Soybean crops throughout Ontario are also facing a rising problem with white mold – due in part, again, to the increasing frequency of soybeans in rotations.
		Crop rotation is one such tool because it reduces the potential for serious reinfestations due to one specific crop residue.
	www.pioneer.com /canada/crop_management/crop_rotation_ca.htm (1963 words)

	Crop Rotation
		If crops are grown in the same place every year there is a risk that soil borne pests will increase and that plants will lose their vigor.
		It is best to have a system of rotating crops so that particular nutrients required by a specific are not used up and pests do not have a chance to multiply.
		The pragmatic approach is to try to rotate crops if possible and to avoid growing the same crop in the same place year after year.
	www.organicgarden.org.uk /starthere/rotation.htm (211 words)

	Can We Rotate Our Way to Higher Crop Yields?
		Is a 3–Crop Rotation of Corn, Soybean, and Wheat Viable in Illinois?
		While the 2–year corn–soybean rotation is minimal in terms of complexity, it provides a considerable boost to corn yields compared to continuous corn, and we do not know how to eliminate this difference in continuous corn, though we can manage to reduce it to some extent.
		What changes in rotation individual producers might make in their own fields will depend on how well individual fields can support continuous corn compared to rotations, and also to management changes that producers are willing and able to make.
	www.cropsci.uiuc.edu /classic/2005/Article1 (1398 words)

	Agriculture, Fisheries and Aquaculture: Crop Rotation
		Crop rotation is the foundation on which other conservation practices, such as strip cropping, residue management and mulching are based.
		Crop rotation is also a key component in any strategy to improve product quality and lower production costs.
		Intensive cropping of potatoes, requiring heavy equipment, is a major cause of soil compaction.
	www.gov.pe.ca /af/agweb/index.php3?number=71763 (0 words)

	Crop rotation adds value to irrigation, study says
		As the demand for water grows and available supplies are used, crop producers face increasing competition to share their common, finite water resource with residential, manufacturing and livestock sectors of the economy.
		The rotations utilized two varieties of cotton and one variety of grain sorghum planted on 40-inch rows.
		In the harshest year, 2003, their cotton-grain sorghum rotation yields were 26 percent higher than continuous cotton yields, used 19 percent less water and required less tillage to prevent blowing sand.
	www.txfb.org /TexasAgriculture/2006/031706/031706croprotation.htm (805 words)

	Crop Rotation Options Program (CROP)
		The Crop Rotation Options Program (CROP) is a computerized spreadsheet intended for use by farm advisors and educators as a tool for whole farm planning on cash grain and dairy operations.
		The predicted rate of soil loss for the corn-soybean-wheat rotation on land with slopes of 6 to 12% averaged 5.4 tons per acre when the land was chisel plowed.
		In January of 1998 a beta testing version of CROP and its user manual were released to a group of extension agents, county land conservation staff, and crop consultants, who attended a one-day training workshop.
	www.cias.wisc.edu /wicst/pubs/crop.htm (652 words)

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