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THE EFFECT OF VARIOUS MANURING PRACTICES ON THE MAGNESIUM STATUS OF SPRING HERBAGE
Author(s) -
Hunt I. V.,
Alexander R. H.,
Rutherford A. A.
Publication year - 1964
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1964.tb01166.x
Subject(s) - potash , acre , magnesium , spring (device) , agronomy , potassium , chemistry , fertilizer , metallurgy , materials science , biology , mechanical engineering , engineering
When light dressings of 0·75, 1·50 and 2·25 cwt muriate of potash per acre (60% K 2 O) were applied in autumn and spring to swards receiving two levels of sulphate of ammonia, 30 or 60 lb N/acre, and kieserite (29% MgO) at 0, 4 or 12 cwt/acre, magnesium content was reduced as the level of muriate of potash increased. Autumn application resulted in a higher magnesium content, at the expense of the amount of the potash absorbed in the spring herbage. The effects at the lowest levels of application of muriate of potash were slight and became insignificant in later herbage samples.