Predicting nitrogen requirement in perennial ryegrass seed crops.
作者： R.J. Chynoweth , B.L. Mccloy , M.P. Rolston
DOI: 10.33584/RPS.14.2008.3190
关键词:
摘要: Results from 17 nitrogen (N) rate response trials using current best management including the plant growth regulator trinexapac-ethyl (Moddus) were used to predict optimum applied N rates for perennial ryegrass. The average was 145 kg/ha. A simple model late winter soil mineral (0-30 cm) and a total requirement (mineral + N) of 185 kg N/ha is recommended growers spring rate. Keywords: nitrogen, rate, Lolium perenne, seed yield
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