Premium
Phosphorus Redistribution in Maize Plants, Zea mays L., in Relation to the Nitrogen Supply
Author(s) -
Venekamp J. H.,
Penning F. W. T.,
Koot J. T. M.
Publication year - 1986
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1986.tb00068.x
Subject(s) - redistribution (election) , zea mays , nitrogen , phosphorus , agronomy , nutrient , phosphate , dry weight , nitrate , poaceae , biology , chemistry , botany , ecology , organic chemistry , politics , political science , law , biochemistry
The influence of different nutrition regimes on phosphorus (P) redistribution in maize plants, cv. LG 11, was studied. Nutrient solutions in four combinations of high and low nitrate concentrations and high and low phosphate concentrations were used to grow four different groups of plants. During the development of the plants dry weights and total P contents were measured. It was concluded that P redistribution into reproductive organs was dependent on N supply and was a consequence of N redistribution. The ratio of N and P concentrations was not equal in several parts of the plant, and was not constant during the development. In different parts of a young plant the ratio increased. As soon as redistribution of N and P started the N/P ratio decreased. The minimum N/P ratio of a mature maize plant was about 3 for leaves and 1 or 2 for roots and stems.