Premium
Effects of nitrogen and potassium fertilisers on the mineral status of perennial ryegrass (lolium perenne). I.—mineral content
Author(s) -
Rahman H.,
McDonald P.,
Simpson K.
Publication year - 1960
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740110714
Subject(s) - lolium perenne , potassium , chemistry , nitrogen , agronomy , phosphorus , perennial plant , magnesium , sodium , chlorine , ammonium , biology , organic chemistry
Results are given for the effects of ammonium nitrate applied at two levels and potassium sulphate at one level on the nitrogen, calcium, magnesium, sodium, potassium, phosphorus, sulphur and chlorine content of perennial ryegrass grown pure and in the presence of clover. Three cuts were taken over two seasons and statistical analyses of the results are presented for each cut. Application of nitrogen fertilisers increased the N content of the ryegrass (chiefly the non‐protein nitrogen). Sodium contents were increased at all cuts and potassium in the second and third cuts, after application of nitrogen. Chlorine content was decreased and phosphorus increased (at second and third cuts). Variable magnesium contents were obtained, possibly due to rainfall conditions.