Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 September 1960
Published in Agron J 52:516-518 (1960)
© 1960 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Time of Applying Nitrogen Fertilizer on Yield of Hops1

S. N. Brooks and K. R. Keller2

Synopsis: Greater yield responses were obtained from early applications of nitrogen fertilizer to hops than from late applications. Supplying the fertilizer in split applications had no advantage over supplying a like total amount all at one time. Nitrogen fertilizer had no effect on the percentages of chemical quality components in the strobiles.


1 Published as Technical Paper No. 1272 with the approval of the Director of the Oregon Agricultural Experiment Station, Corvallis, Oregon, and the Director of the Crops Research Division, ARS, USDA. Contribution of the Department of Farm Crops of the Oregon Agricultural Experiment Station and the Crops Research Division, ARS, USDA.

2 Agronomist and former Agronomist (now Assistant Director, North Carolina Agricultural Experiment Station), Crops Research Division, ARS, USDA, respectively. The authors are indebted to S. T. Likens, Chemist, Crops Research Division, ARS, USDA, for supplying the data presented in Table 2.







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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education
Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality
The Plant Genome
Copyright © 1960 by the American Society of Agronomy.