How to Cite
Lozano, J., Vicente-Chandler, J., & Abruña, F. (1986). Effect of Straw Disposal Method and of Nitrogen Rates on Rice Yields and Recovery of Fertilizer Nitrogen. The Journal of Agriculture of the University of Puerto Rico, 70(2), 91–97. https://doi.org/10.46429/jaupr.v70i2.7080
Abstract
Burning, plowing or removing straw from the fields with eight successively planted rice crops did not significantly affect rice yields, N content of the straw or grain, recovery of fertilizer N or organic matter content of the soil. Yields increased with N applications up to over 100 kg/ha. N contents of the straw and grain also increased irrespective of method of straw disposal. Nitrogen applications did not affect N or organic matter content of the soil.
Downloads
Download data is not yet available.
Most read articles by the same author(s)
- Rubén Caro-Costas, José Vicente-Chandler, Effect of Three Grazing Intervals on Carrying Capacity and Weight Gains Produced by Star Grass Pastures , The Journal of Agriculture of the University of Puerto Rico: Vol. 65 No. 1 (1981): Vol. 65, No. 1, January 1981
- Ruben Caro-Costas, José Vicente-Chandler, Jacinto Figarella, The Yields and Composition of Five Grasses Growing in the Humid Mountains of Puerto Rico, as Affected by Nitrogen Fertilization, Season, and Harvest Procedures , The Journal of Agriculture of the University of Puerto Rico: Vol. 44 No. 3 (1960): Vol. 44, No. 3, July 1960
- José Lozano, Edmundo Rivera, Fernando Abruña, Effect of Season of the Year on Yields of Several Varieties of Dry Beans Growing in Two Ecological Regions of Puerto Rico , The Journal of Agriculture of the University of Puerto Rico: Vol. 67 No. 4 (1983): Vol. 67, No. 4, October 1983
- Servando Silva, José Vicente-Chandler, Fernando Abruña, Water Management Systems and Rice Yields Under Humid Tropical Conditions in Puerto Rico , The Journal of Agriculture of the University of Puerto Rico: Vol. 67 No. 4 (1983): Vol. 67, No. 4, October 1983
- Fernando Abruña, Miguel A. Lugo-López, Restoration of productivity in tropical eroded soils under appropriate management , The Journal of Agriculture of the University of Puerto Rico: Vol. 71 No. 1 (1987): Vol. 71, No. 1, January 1987
- Edmundo Rivera, Fernando Abruña, José Rodríguez, Crop Response to Soil Acidity Factors in Ultisols and Oxisols in Puerto Rico X1. Cassava , The Journal of Agriculture of the University of Puerto Rico: Vol. 69 No. 2 (1985): Vol. 69, No. 2, April 1985
- Rafael F. Olmeda, Fernando Abruña, Four Nitrogen Levels and Three Water Management Systems on Rice Yield and Nitrogen Recovery , The Journal of Agriculture of the University of Puerto Rico: Vol. 70 No. 3 (1986): Vol. 70, No. 3, July 1986
- José Vicente-Chandler, Jacinto Figarella, Effects of Five Nitrogen Sources on Yield and Composition of Napier Grass , The Journal of Agriculture of the University of Puerto Rico: Vol. 46 No. 2 (1962): Vol. 46, No. 2, April 1962
- Fernando Abruña, Jacinto Figarella, Some Effects of Calcium and Phosphorus Fertilization on the Yield and Composition of a Tropical Kudzu-Grass Pasture , The Journal of Agriculture of the University of Puerto Rico: Vol. 41 No. 4 (1957): Vol. 41, No. 4, October 1957
- José Vicente-Chandler, Servando Silva, Jacinto Figarella, Effects of Nitrogen Fertilization and Frequency of Cutting on the Yield and Composition of Guinea Grass in Puerto Rico , The Journal of Agriculture of the University of Puerto Rico: Vol. 43 No. 4 (1959): Vol. 43, No. 4, October 1959