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)
- Fernando Abruña, José Lozano, Productivity of 25 Varieties of Rice Grown Under Conditions of Limited Moisture , The Journal of Agriculture of the University of Puerto Rico: Vol. 61 No. 1 (1977): Vol. 61, No. 1, January 1977
- 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
- Ruben Caro-Costas, José Vicente-Chandler, Comparative Productivity of Merker Grass and of a Kudzu-Merker Grass Mixture as Affected by Season and Cutting Height , The Journal of Agriculture of the University of Puerto Rico: Vol. 40 No. 3 (1956): Vol. 40, No. 3, July 1956
- Rubén Caro-Costas, José Vicente-Chandler, Calwin Burleigh, Beef Production and Carrying Capacity of Heavily Fertilized, Irrigated Guinea, Napier, and Pangola Grass Pastures on the Semiarid South Coast of Puerto Rico , The Journal of Agriculture of the University of Puerto Rico: Vol. 45 No. 1 (1961): Vol. 45, No. 1, January 1961
- Rubén Caro-Costas, José Vicente-Chandler, Effects of Two Cutting Heights on Yields of Five Tropical Grasses , The Journal of Agriculture of the University of Puerto Rico: Vol. 45 No. 1 (1961): Vol. 45, No. 1, January 1961
- Rubén Caro-Costas, José Vicente-Chandler, Effect of Liming and Fertilization on Productivity and Species Balance of a Tropical Kudzu-Molassesgrass Pasture Under Grazing Management , The Journal of Agriculture of the University of Puerto Rico: Vol. 47 No. 4 (1963): Vol. 47, No. 4, October 1963
- José Vicente-Chandler, Servando Silva, Jacinto Figarella, Some Limitations in the Use of the Air Picnometer for Soil-Porosity, Soil-Moisture, and Particle-Density Determinations , The Journal of Agriculture of the University of Puerto Rico: Vol. 40 No. 3 (1956): Vol. 40, No. 3, July 1956
- Servando Silva, José Vicente-Chandler, Water Use by Flooded Rice in Puerto Rico , The Journal of Agriculture of the University of Puerto Rico: Vol. 66 No. 3 (1982): Vol. 66, No. 3, July 1982
- José Vicente-Chandler, Servando Silva, Jacinto Figarella, Effect of Frequency of Application on Response of Guinea Grass to Nitrogen Fertilization , The Journal of Agriculture of the University of Puerto Rico: Vol. 46 No. 4 (1962): Vol. 46, No. 4, October 1962
- Fernando Abruña, José Lozado, Effect of Season of the Year on Yields of 13 Varieties of Rice Growing in the Humid Region of Puerto Rico , The Journal of Agriculture of the University of Puerto Rico: Vol. 58 No. 1 (1974): Vol. 58, No. 1, January 1974