corn planting Articles
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Hairy Vetch management for no-till organic corn production
Rolling-crimping to control hairy vetch (Vicia villosa Roth) may make organic no-till corn (Zea mays L.) possible. This study investigated how rolling-crimping date and growth stage of the cover crop affected hairy vetch control and if a rolled-crimped hairy vetch cover crop could supply weed control for no-till corn. Hairy vetch was planted in late August and was rolled and crimped and planted ...
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Planting date and cultivar effects on grain yield in dryland corn production
Corn (Zea mays L.) production is gradually spreading into the Sudan savanna zone of West Africa where production is limited by erratic and inadequate rainfall. To increase corn production, production practices should be properly designed to minimize the effects of low precipitation and high temperatures that characterize the zone. A study, to determine the performance of late (120 d), early (90 ...
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An analysis of Bt corn's benefits and risks for national and regional policymakers considering Bt corn adoption
This paper examines important factors for policymakers to consider when making a decision to adopt Bt corn planting and commercialisation, by analysing the market, environmental, and health benefits and risks of Bt corn as well as current regulatory policies that may affect trade. Bt corn, genetically modified to produce a pesticidal protein, has benefits that include improved yield, decreased ...
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Volunteer corn presents new challenges for insect resistance management
Genetically-modified (GM) corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] dominate the North American agricultural landscape and are becoming increasingly important as biofuels. However, as herbicide-tolerance and insecticidal traits are often simultaneously expressed by individual plants, glyphosate [N-(phosphonomethyl) glycine]-resistant (GR) volunteer corn is becoming a widespread ...
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Uptake of point source depleted 15n fertilizer by neighboring corn plants
Ground-based active (self-illuminating) sensors make it possible to collect canopy data that are useful for making on-the-go N fertilizer application decisions. These technologies raise questions about plant-to-plant competition for targeted fertilizer N applications. This study evaluated the extent to which fertilizer N applied to an individual corn (Zea mays L.) plant might be intercepted by ...
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Corn morphology, mass, and grain yield as affected by early-season red: far-red light environments
The spatial arrangement among plants affects both vegetative and reproductive meristem development. More axillary meristems develop at lower plant densities, which are associated with relatively high red:far-red light ratios (R:FRs; 645:735 nm). However, little is known about the effect of R:FR on corn (Zea mays L.) productivity. We conducted field research to determine the effect of early-season ...
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No evidence that Bacillus Thuringiensis genes and their products influence the susceptibility of corn residue to decomposition
The possibility that Bacillus thuringiensis (Bt) corn (Zea mays L.) residues resist decomposition compared to non-Bt residues would present direct (soil carbon turnover times) and indirect (changes in tillage practices) effects on carbon budgets in agricultural systems. We evaluated the relative decomposition of residue from two pairs of Bt and non-Bt corn hybrids from different seed ...
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Evaluation of in-season Nitrogen management strategies for corn production
Nitrogen is an important and costly input for corn (Zea mays L.) production. With rising prices and environmental concerns, producers are looking for ways to better manage N fertilization. A project designed to evaluate in-season N management strategies for adjusting N rate was conducted in 30 Iowa cornfields from 2004 to 2006. Nitrogen rates applied preplant or early sidedress (PRE-N) and corn ...
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Drip Irrigation for Corn
Corn Farming Made Easy with Drip Irrigation for Corn: Water Management Ultimate Solution Corn farming, with its golden ears swaying in the breeze, has long been a symbol of abundance and sustenance. However, the road to a thriving corn harvest is not without its challenges. Traditional irrigation methods, such as flood irrigation, can waste a significant amount of water and lead to environmental ...
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Top 5 Methods to Protect Corn From Crows
Keep seedlings safe Establish visual bird deterrents Implement sound machines Set up netting Repel birds with liquid bird repellent Tired of crows making a meal out of your corn? Find the best way to keep your corn safe from crows and other pest birds. Here are the top five methods to protect your corn from pest crows with Avian Control. 1. Keep Seedlings Safe Crows are known to get ...
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Self-seeded cereal cover crop effects on interspecific competition with corn
Perpetuating cereal cover crops through self-seeding may increase adoption by reducing risk and cost. Winter rye (Secale cereale L.), wheat (Triticum aestivum L.), and triticale (x Triticosecale Wittmack) were used to develop self-seeding cover crop systems in a soybean [Glycine max (L.) Merr.]–corn (Zea mays L.) rotation. Cereal cover crops were planted in varying row spacing configurations and ...
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Corn stover using as a fuel in america
In the world, US, Mexico, Brazil, Argentina, South Africa, Egypt, Kenya, Ghana, Zimbabwe, and so on, many countries grow corn, Case Study of Mozambique. Mozambique's main food crops are corn, rice, sorghum and cassava, corn is the staple food of Africans across the country are producing. Both of Corn stover and Corncob can be biomass fuel like straw, Corn stover biomass fuel boiler and corncob ...
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Benefits of vetch and rye cover crops to sweet corn under no-tillage
Leguminous cover crops (CCs) may reduce N fertilizer requirements by fixing N biologically and storing leftover N-fertilizer applied in the previous year. The objective of this study was to determine the contribution of CCs [rye (Secale cereal L.) and hairy vetch (Vicia villosa Roth)] on plant N nutrition and weed suppression to the following sweet corn (Zea mays L.). The CCs were planted in the ...
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Rising Temperature, Rising Food Prices
Agriculture as it exists today developed over 11,000 years of rather remarkable climate stability. It has evolved to maximize production within that climate system. Now, suddenly, the climate is changing. With each passing year, the agricultural system is becoming more out of sync with the climate system. In generations past, when there was an extreme weather event, such as a monsoon failure in ...
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Response of bt and near-isoline corn hybrids to plant density
Transgenic Bt (Bacillus thuringiensis) corn (Zea mays L.) hybrids with resistance to corn rootworm (CRW; Diabrotica spp.) or European corn borer [ECB; Ostrinia nubilalis (Hübner)] can have greater tolerance to water and nutrient stress, and thus may have higher optimum plant densities. Experiments were conducted following soybean [Glycine max (L.) Merr.] over nine site-years in Illinois to ...
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The sanitation and urban agriculture nexus: urine collection and application as fertilizer in São Paulo, Brazil
Separately collected urine is an attractive potential fertilizer because of its high nutrient content, low cost, and inherent linkage of urban wastewater management and peri-urban agriculture. Urine from waterless urinals was applied to corn and lettuce plants to examine the impact of urine application rates and frequency on plant growth and soil parameters. In both corn and lettuce ...
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Effect of tillage and nitrogen rate on corn yield and nitrogen and phosphorus uptake in a corn-soybean rotation
Understanding tillage, N, and P interactions can contribute to improved N and P utilization and crop response. This study examined the interaction effects of tillage and N rate of two N sources on N and P uptake by corn (Zea mays L.). The study was conducted on Kenyon loam (fine loamy, mixed, mesic Typic Hapludolls) soil at the Iowa State University Northeast Research and Demonstration Farm near ...
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No-till corn after Bromegrass: Effect on soil carbon and soil aggregates
Grasslands in the Conservation Reserve Program (CRP) in the USA may be converted to grain crops for bioenergy. The effect of no-till conversion of a smooth bromegrass (Bromus inermis Leyss) grassland to no-till corn (Zea mays L.) production on soil organic carbon (SOC) in the western Corn Belt was monitored for over 6 yr. A different 13C/12C isotope signature is imparted to SOC by C4 plants ...
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A closer look at AMCO’s versatile Ditcher cutter heads
Standing water can kill crops in a hurry. That’s why a well-built drainage system is essential, especially if you: Live in a flat area or region with a lot of precipitation Plant corn, soybeans, cotton, rice, or other crops that are sensitive to waterlogging AMCO’s Vertical and Offset Rotary Ditchers are affordable tools that easily clean roadside ditches and reshape waterways. ...
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Contribution of planting date trends to increased maize yields in the central united states
Early planting of maize (Zea mays L.) allows for longer-season hybrids to be used in cool temperate regions. Given that a multidecadal trend toward earlier planting has been occurring across the Corn Belt, it was hypothesized that this shift has supported a portion of recent yield increases. The objectives were to quantify relationships among state level monthly climate variables, maize yields, ...
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