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The combined use of fertilizer nitrogen and white clover on grazed ryegrass swards
Author(s) -
REID D.
Publication year - 1985
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.1365-2494.1985.tb01766.x
Subject(s) - grazing , perennial plant , agronomy , yield (engineering) , nitrogen fertilizer , fertilizer , nitrogen , trifolium repens , biology , red clover , zoology , chemistry , materials science , organic chemistry , metallurgy
A 1‐year grazing experiment with dairy cows is described in which the milk yield and herbage intake from a sward of S23 perennial ryegrass alone receiving fertilizer N at an annual rate of 360 kg ha −1 were compared with those from a ryegrass‐white clover var. Blanca sward given a total N application of 180 kg ha −1 . Both treatments gave virtually the same total milk yield of about 12500 kg ha −1 over a 20‐week grazing season.