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Modification of the Step‐Point Method for Evaluating Species Yield Changes in Fertilizer Trials on Annual Grasslands 1
Author(s) -
Jones Milton B.,
Evans Raymond A.
Publication year - 1959
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1959.00021962005100080007x
Subject(s) - yield (engineering) , clipping (morphology) , fertilizer , agronomy , zoology , mathematics , environmental science , biology , physics , linguistics , philosophy , thermodynamics
Synopsis Average species height times percentage of the ground covered by the species (H x G) was found to be correlated with the species yield determined by clipping, separating, and weighing. The H x G factor for each species showed more significant differences between treatments and had lower coefficients of variation than the yield data for that species. Much less time was required to obtain the H x G measurement than to get species yields, and the precision of H x G was greater.