Open AccessEffect of Time of Nitrogen Application on the Sucrose Content of Sugarcane Ratoons
Author(s) -
George Samuels,
S. Alers-Alers
Publication year - 1964
Publication title -
the journal of agriculture of the university of puerto rico/the journal of agriculture of the university of puerto rico
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.123
H-Index - 10
eISSN - 2308-1759
pISSN - 0041-994X
DOI - 10.46429/jaupr.v48i4.12998
Subject(s) - sucrose , nitrogen , potash , cane , acre , potassium , horticulture , zoology , chemistry , phosphate , agronomy , biology , sugar , food science , biochemistry , organic chemistry
Two ratoon crops of P.R. 980 sugarcane were grown on a Vega Baja silty clay at Río Piedras, P.R., with nitrogen applied at different times. The results indicated that: 1. The applications of nitrogen to ratoons 15 weeks or older significantly reduced the sucrose content of the sugarcane when harvested at 12 months of age. 2. Late applications of nitrogen to ratoons, 15 weeks or later, reduced sucrose-percent-cane even when phosphate and potash fertilizers were present. 3. High nitrogen rates, 250 pounds N per acre, caused significant lowering of sucrose in a 3-week-old ratoon.