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The Response of Four Varieties of Alfalfa to Spring Clipping, Intervals Between Clippings, and Fall Clipping in the Yakima Valley 1
Author(s) -
Jackobs J. A.,
Oldemeyer Donald L.
Publication year - 1955
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/agronj1955.00021962004700040005x
Subject(s) - clipping (morphology) , irrigation , spring (device) , agronomy , linguistics , philosophy , biology , engineering , mechanical engineering
EVERAL investigators (1, 2, 4 ) have shown springS clipping, frequent cutting, and cutting at certain critical periods in the fall to be detrimental to alfalfa in the Midwestern states. However, the results of a management study reported by Jackobs (3) indicated that such management practices have little or no effect on the vigor and productivity of irrigated alfalfa in the Yakima Valley in south central Washington. The climate in the Yakima Valley is characterized by low rainfall and high light intensities; the ability of alfalfa in that area to withstand management treatments that are detrimental in the Midwest may be due to differences in such climatic factors and differences in soils. Since Ladak was the only variety used in the initial study in the Yakima Valley, the question arose whether or not the results would be the same with other varieties. Results of such a study are reported here.