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Although dissolved iron concentrations vary directly with plant production , iron availability in itself does not appear to limit production , since iron plays only a secondary role in nutrition even at the levels commonly found in the ...
Although dissolved iron concentrations vary directly with plant production , iron availability in itself does not appear to limit production , since iron plays only a secondary role in nutrition even at the levels commonly found in the ...
Стр. 672
Debris from chert production was concentrated near elaborate houses , but utilized pieces , including imported cherts , were more evenly distributed . Wright suggests that the ubiquity of imported cherts indicates that all households ...
Debris from chert production was concentrated near elaborate houses , but utilized pieces , including imported cherts , were more evenly distributed . Wright suggests that the ubiquity of imported cherts indicates that all households ...
Стр. 847
SCIENCE 26 November 1982 , Volume 218 , Number 4575 Role of Chemicals in the Green Revolution i Chemistry and World Food Supplies The remarkable progress in food production in the developing countries over the past 20 years is due ...
SCIENCE 26 November 1982 , Volume 218 , Number 4575 Role of Chemicals in the Green Revolution i Chemistry and World Food Supplies The remarkable progress in food production in the developing countries over the past 20 years is due ...
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BOOK REVIEWS | 113 |
REPORTS | 127 |
Reversal of Morphine Disruption of Maternal Behavior by Concurrent Treatment | 166 |
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acid Action activity addition analysis animals applications areas associated behavior biology candidates cells Center changes channel chemical chemistry chromatography concentrations containing culture curriculum vitae Department effect electron element Employer energy Equal example expected experience females field gene genetic given glucose human illus important increase indicated individual injected Institute interest Laboratory less letters major males mass measurements mechanisms Medical ment methods Michigan molecular natural observed obtained occur Opportunity organic particles peak percent Ph.D plant position possible present Press production protein range rats recent recording references reported response ring sample School Science scientific selection Send sequence species strain structure suggest surface Table teaching techniques tion University York