@Article{phyton.2009.78.049,
AUTHOR = {Brevedan RE, MI Aveldaño, MN Fioretti, MA Varillas, SS Baioni, HR Mirassón, IR Palomo},
TITLE = {Phosphorus nutrition on nitrogen metabolism of non-nodulated soybean},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {78},
YEAR = {2009},
NUMBER = {all},
PAGES = {49--52},
URL = {http://www.techscience.com/phyton/v78nall/36920},
ISSN = {1851-5657},
ABSTRACT = {Two experiments were conducted under greenhouse conditions to study the influence of P deficiency on nitrogen nutrition of non-nodulated soybean. There was a reduction of N and P content in P deficient (P-) plants of almost 50% after 50 days. During this period, dry matter of these plants was reduced by 33%. Nitrate reductase activity and shoot nitrate content were lower in Pthan in P+ plants. Seventy five percent of nitrates in P- plants were in the roots. Nitrate accumulation in roots would be due to the lower nitrate reductase activity in this organ and a reduced water flux to shoots. Root nitrate concentration increases would cause a negative feedback which would reduce plant nitrate uptake.},
DOI = {10.32604/phyton.2009.78.049}
}