Plant, Soil and Environment, 2011 The experiment was carried out to observe the influence of the CULTAN method (controlled uptake long term ammonium nutrition) on grain yield and yield formation of spring barley cultivar Jersey.
O. Sedlář +4 more
doaj +1 more source
Effects of macrobenthos on sediment-water oxygen and ammonium fluxes. Final Report. [PDF]
, 1997 Sediments are an important location in determining the fate of nutrients entering the estuary. Role of sediments needs to be incorporated into water quality models.
Barnes, J.M. +3 more
core
CXXV.—The formation of polyiodides in nitrobenzene solution. Part III. The chemical dissociation of the polyiodides of the alkali metals and ammonium radicles [PDF]
, 1908 Harry Medforth Dawson
openalex +1 more source
Electronic Energy Singularities of Weakly H-bonded Ammonium Dimer [PDF]
arXivQuantum and molecular mechanics based electronic energy studies of weak H-bonded ammonium dimer show distinctive feature in energy profile when computed by different QM methods contrast to MM methods. MM based MMFF and SYBYL methods show smoothly varying dihedral energy profile for torsion angle variation around weak N1-H5 held by H-bond strength of ...
arxiv
Nitrogen compounds and enzyme activities in sorghum induced to water deficit during three stages
Plant, Soil and Environment, 2009 The aim of this study was to evaluate and explicate the changes in the nitrogen compounds and enzyme activities in Sorghum bicolor plants (cv. BR-700) submitted to water deficit during vegetative, reproductive and maturation stages.
C.F. Oliveira Neto +9 more
doaj +1 more source
Influence of pre-crop and root architecture on the mobilization of non-exchangeable NH4+
Plant, Soil and Environment, 2014 It is well established that non-exchangeable NH4+ is an important N source for plants. However, release from clay minerals only occurs when the NH4+ concentration of the mineral environment declines below a certain level.
P. Beuters, T. Eichert, H.W. Scherer
doaj +1 more source
EFFECTS OF RISK ON OPTIMAL NITROGEN FERTILIZATION DATES IN WINTER WHEAT PRODUCTION AS AFFECTED BY DISEASE AND NITROGEN SOURCE [PDF]
Optimal fertilization dates were found for two nitrogen sources in the presence of two diseases for wheat farmers with different risk preferences. Risk was independent of fertilization date.
English, Burton C. +4 more
core +1 more source
THE CONSTITUTION OF AMMONIUM AMALGAM. [PDF]
Journal of the American Chemical Society, 1907 n ...
openaire +2 more sources
The impact of nitrogen fertilizer injection on kernel yield and yield formation of maize
Plant, Soil and Environment, 2014 In field experiments over three vegetation periods (2010-2012) we studied impact of the CULTAN (controlled uptake long term ammonium nutrition) method on yield and yield parameters of kernel maize. The field experiments were conducted at three sites with
K. Kubešová +3 more
doaj +1 more source