ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Tilman et al. reply An important question that arises from Hafner's comment is why global crop production should appear to be a linear function of global nitrogen fertilization, even though crop production has consistently shown diminishing returns from increased fertilization ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/422398a
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