Nitrogen losses from perennial grass species
نویسندگان
چکیده
منابع مشابه
Soil Nutrient Heterogeneity Alters Competition between Two Perennial Grass Species
Differences in root foraging behavior between species have been well documented, but the effects of these differences on belowground competitive ability are only beginning to be studied. Here we report the results of a competition experiment in homogeneous and heterogeneous soils between two species that differ in their ability to acquire nutrients from patchy environments. The perennial grasse...
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Nitrogen (N) fertilization can greatly improve plant productivity but needs to be carefully managed to avoid harmful environmental impacts. Nutrient management guidelines aimed at reducing harmful forms of N loss such as nitrous oxide (N2O) emissions and nitrate (NO3(-)) leaching have been tailored for many cropping systems. The developing bioenergy industry is likely to make use of novel cropp...
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While many small dairy farms have shut down milk production, the livestock density and number of livestock farms have increased in certain regions in western and central Finland during recent decades. At present, most dairy farms prefer almost continuous grass cultivation to crop rotation with cereals and grasses. Consequently, slurry is spread onto fields of silage grass instead of using earli...
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Establishment and growth of three perennial herbs and a small tussock grass were studied in an experiment that provided simulated rainfall of 6 mm week 1 or 25 mm once per month and nitrogen fertilization in combination with the different simulated rainfall regimes. Wild onion, Allium macropetalum, failed to establish in plots receiving 25 mm month 1 simulated rainfall. The perennial composite,...
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Current biofuel feedstock crops such as corn lead to large environmental losses of N through nitrate leaching and NO emissions; second-generation cellulosic crops have the potential to reduce these N losses. We measured N losses and cycling in establishing miscanthus (), switchgrass ( L. fertilized with 56 kg N ha yr), and mixed prairie, along with a corn ( L.)-corn-soybean [ (L.) Merr.] rotati...
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ژورنال
عنوان ژورنال: Oecologia
سال: 1996
ISSN: 0029-8549,1432-1939
DOI: 10.1007/bf00328592