News from ScienceDaily
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Saturday, 04 September 2010 18:00 |
Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life.
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Thursday, 02 September 2010 06:00 |
Side-by-side comparisons of organic and conventional strawberry farms and their fruit found the organic farms produced more flavorful and nutritious berries while leaving the soil healthier and more genetically diverse. The study is among the most comprehensive of its kind, analyzing 31 chemical and biological soil properties, soil DNA, and the taste, nutrition and quality of three strawberry varieties on more than two dozen commercial fields -- 13 conventional and 13 organic.
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Monday, 02 August 2010 19:00 |
Scientists have found that over several months, biochar applied to soil can significantly reduce emissions of nitrous oxide and leaching of nitrates.
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Thursday, 15 July 2010 22:00 |
The nitrogen cycle is the natural process that makes nitrogen available to all organisms on earth. Scientists have discovered that one of the world's most common and ecologically important groups of fungi plays an unsuspected role in this key natural cycle.
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Thursday, 01 July 2010 03:00 |
A team of researchers has found that organic farming increases biodiversity among beneficial, pest-killing predators and pathogens. In potato crops, this led to fewer insect pests and larger potato plants.
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Tuesday, 29 June 2010 01:00 |
No significant differences in corn yield were found between organic and chemical sources of nutrients, but a new study suggests that manure generates higher economic returns than anhydrous ammonia.
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Tuesday, 29 June 2010 00:00 |
Researchers test whether a one-time tillage of no-till could help manage certain perennial weeds, and reduce phosphorus stratification and runoff. They also wanted to determine if a one-time tillage, could improve soil structure and the distribution of soil nutrients.
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Wednesday, 23 June 2010 22:00 |
Chicken litter is much more valuable as a fertilizer than previously thought, according to an Agricultural Research Service study showing its newfound advantages over conventional fertilizers.
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Wednesday, 23 June 2010 03:00 |
A new study reveals some organic pesticides can have a higher environmental impact than conventional pesticides. Researchers investigated the effectiveness and environmental impact of organic pesticides to those of conventional and novel reduced-risk synthetic products on soybean crops. The researchers found the organic pesticides required larger doses and were more harmful to pests that help protect the crop compared to the synthetic pesticides.
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Wednesday, 16 June 2010 21:00 |
Researchers are testing between-row cover grasses as part of research looking at ways to reduce soil runoff and keep vital nutrients in the soils while crop residue, called stover, is removed from farm fields to produce biofuels. Two years into a study, research is showing that yield can be maintained at high levels using environmentally friendly practices.
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Friday, 11 June 2010 14:03 |
The ongoing search for evidence of past or present life on Mars includes efforts to identify organic compounds such as proteins in Martian soil, but their absence to date remains a mystery. A new theory to explain what happens to these carbon-based molecules is presented in a new article.
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