Effect of N, P, and K Fertilization on Yield and Sugar Content of Sap of Sugar Maple Trees
- 1 March 1963
- journal article
- Published by Wiley in Soil Science Society of America Journal
- Vol. 27 (2) , 236-238
- https://doi.org/10.2136/sssaj1963.03615995002700020043x
Abstract
Sap yield, sap sugar concentration, and sugar yield data from sugar maple trees collected over 3 years revealed great intra‐ and interseasonal variations. The effect of N, P, and K fertilizers, applied singly and in combination, affected the yield of sugar by affecting sap yield and/or sap sugar concentration. The combination fertilizer depressed sugar yield the first sap flow season after treatment and increased this yield in the second season. The N or K fertilizer resulted in little change in sugar yield over the control trees while P fertilizer produced a significant effect on sap sugar concentration, thus affecting sugar yield.Keywords
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