News tagged with agronomy journal
Manure provides higher returns than chemical fertilizers: study
No significant differences in corn yield were found between organic and chemical sources of nutrients, but a Texas AgriLife Research economist said manure generates higher economic returns than anhydrous ammonia.
Jun 28, 2010 |
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Reducing fossil energy use on the farm
Conventional agriculture production relies heavily on fossil fuels, particularly in its ability to provide energy at a low cost. However, the uncertain future of fossil fuel availability and prices point to ...
May 03, 2010 |
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Can organic cropping systems be as profitable as conventional systems?
Which is a better strategy, specializing in one crop or diversified cropping? Is conventional cropping more profitable than organic farming? Is it less risky?
Apr 06, 2009 |
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Can one-time tillage improve no-till?
A one-time tillage has no adverse effects on yield or soil properties on no-till land, according to field research conducted at the University of Nebraska-Lincoln. Although tillage is another expense for farmers and generally ...
Jun 28, 2010 |
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Finding the right time for rolling rye
(PhysOrg.com) -- U.S. Department of Agriculture (USDA) scientists are helping growers adopt an environmentally friendly practice that is catching on nationwide: "rolling" their rye when they use it as a cover ...
Nov 17, 2010 |
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Yield projections for switchgrass as a biofuel crop
While scientists have conducted numerous studies on production of biomass from biofuel crops, such as switchgrass, no one has yet compiled this information to evaluate the response of biomass yield to soils, ...
Jul 12, 2010 |
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Dairy farmer finds unusual forage grass
A U.S. Department of Agriculture (USDA) grass breeder has rediscovered a forage grass that seems just right for today's intensive rotational grazing.
Mar 15, 2011 |
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Preventing soil erosion in continuous corn
With recent increase in the cost of energy and subsequent explorations into alternative energy sources, the increased harvest of corn residue for cellulosic ethanol production is likely in the future. This may be especially ...
Jan 12, 2009 |
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Plant soybean early to increase yield
Over the past decade, two-thirds of Indiana growers have shifted to planting their soybean crop earlier because they believe that earlier planting increases yield. Planting date is probably one of the most important yet least ...
Feb 02, 2009 |
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Straw residue helps keep nitrogen on the farm
Scientists are exploring ways to reduce non-point pollution from agriculture. A new study finds that using straw residue in conjunction with legume cover crops reduces leaching of nitrogen into waterways, ...
May 24, 2010 |
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The effect of landscape position on biomass crop yield
The emergence of biofuels into agricultural systems presents new opportunities for farmers to improve economic return while providing critical ecosystem services. Integrating perennial crops can help meet food, fuel and fiber ...
Mar 16, 2010 |
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Iron deficiency in soil threatens soybean production
An expansion of soybean production into areas where soybean has seldom, if ever, been grown can be problematic for some farmers. Soils having high pH values and large amounts of calcium and/or magnesium carbonate are notoriously ...
Dec 06, 2010 |
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GPS helps locate soil erosion pathways
Grassed waterways are placed in agricultural fields where runoff water tends to concentrate because they can substantially reduce soil erosion. Mapping techniques that help identify where erosion channels will likely form ...
Aug 13, 2009 |
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No-till, rotation can limit greenhouse gas emissions from farm fields
Using no-till and corn-soybean rotation practices in farm fields can significantly reduce field emissions of the greenhouse gas nitrous oxide, according to a Purdue University study.
Dec 21, 2010 |
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