The APS Journal Legacy Content is the corpus of 100 years of historical scientific research from the American Physiological Society research journals. This package goes back to the first issue of each of the APS journals including the American Journal of Physiology, first published in 1898. The full text scanned images of the printed pages are easily searchable. Downloads quickly in PDF format.
( availability and increased rainfall resulting in reduced aeration. Split N application was effective in reducing N 2 O emissions by minimizing the supply of NO 3 ( when demand for terminal electron acceptors was high. N 2 O emissions were higher in the potato hill relative to the furrow; however, denitrification rate was higher in the furrow. Nitrate intensity (NI) expresses the exposure of the soil microbial population to NO 3 ( and was calculated as the summation of daily soil nitrate concentration over the monitoring period. Cumulative N 2 O emissions were positively related to NI across year, N fertility treatment and row location. Denitrification was not related to NI, reflecting the primary role of NO 3 ( in influencing the N 2 O:N 2 ratio of denitrification rather than the magnitude of the overall process. Split N application was an effective strategy for reducing N 2 O emissions in years where there was significant rainfall during the period between planting and hilling. ( dans le sol combine´e a`des pre´cipitations plus abondantes, facteurs qui ont nui a`l'ae´ration du sol. L'application fractionne´e d'engrais N re´duit les de´gagements de N 2 O en abaissant la quantite´de NO 3 ( quand la demande d'accepteurs d'e´lectrons finaux est e´leve´e. Les e´missions de N 2 O sont plus importantes sur la butte que dans le sillon; cependant, c'est dans le sillon que la de´nitrification est la plus intense. La charge nitrique (CN) indique le degre´d'exposition de la microflore tellurique aux NO 3 ( et correspond a`la somme de la concentration quotidienne de nitrates dans le sol durant la pe´riode a`l'e´tude. Les e´missions cumulatives de N 2 O sont positivement corre´le´es a`la CN pendant l'anne´e, a`la fertilisation azote´e et a`l'emplacement du rang. La de´nitrification ne pre´sente aucun lien avec la CN, signe que le NO 3 ( joue un roˆle primordial en modifiant le ratio N 2 O:N 2 de la de´nitrification et non l'amplitude du phe´nome`ne. L'application fractionne´e d'engrais N est une bonne strate´gie pour re´duire les e´missions de N 2 O les anne´es ou`il pleut beaucoup durant la pe´riode qui se´pare la plantation du buttage. For personal use only.
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