Authors : J.A. Toca-Ramirez, E. Salazar Sosa, M.P. Gallegos de la Holla, J.H. Martinez Guerrero, M.E. Pereda Solis, J. Toca-Ramirez, F.O. Carrete Carreon, J.L. De La Cruz Gamez and R. Ramirez- Necoechea
Abstract: In order to study, the effect of solarization of cattle and sheep manure on phosphorus capture by triticale forage, a factorial experiment 2x2x4 was developed with 2 types of cattle and sheep manure, two treatments, non-solarized and solarized and 4 levels of application 0, 80, 120 and 160 ton ha-1 with 3 replicates for this purpose, 1x1 m plots were used with a used plot of 0.5x0.5 m sown with triticale. Manure was solarized for a period of 90 days, using manure from dairy cattle fed pastures, alfalfa and concentrate and manure of pasture-fed sheep. For solarization, a 1 mm thick transparent rubber was used to cover manure. Forage samples were taken at the time that the grain was in a milky pasty stage to analyze the content of phosphorus in seed, stem and leaf. The results show a positive effect of manure solarization on phosphorus capture by the different parts of the plant, similarly a higher effect of sheep on cattle manure was observed. In the case of seeds when manure is provided solarized at a rate of 80 kg ha-1, mean values are obtained of extra gain of 4.3 kg ha-1 of phosphorus attributable to solarization. For solarized sheep manure at equivalent rates of 120 ton ha-1 it was found extra mean values of 6.8 kg ha-1 of phosphorus attributable to sheep manure solarization at equivalent rates of 120 kg ha-1. In the case of phosphorus in the stems, bovine manure, solarization negatively affects phosphorus capture by the triticale plant. In the sheep manure, at equivalent rates of 120 ton ha-1 of solarized and non-solarized manure, values of 10.6 and 8.9 kg ha-1 of phosphorus are obtained, respectively with a difference of 1.7 kg ha-1 of captured phosphorus attributable to solarization. In the case of capture of phosphorus by leaves, treatment with solarized sheep manure mean values were obtained from 22.1 kg ha-1 of phosphorus, against 14.1 kg ha-1 of phosphorus when solarized and non-solarized manure was provided, respectively with a difference of 8 kg ha-1 attributable to solarization when solarized manure is provided at rates equivalent to 160 ton ha-1.
J.A. Toca-Ramirez, E. Salazar Sosa, M.P. Gallegos de la Holla, J.H. Martinez Guerrero, M.E. Pereda Solis, J. Toca-Ramirez, F.O. Carrete Carreon, J.L. De La Cruz Gamez and R. Ramirez- Necoechea, 2012. Phosphorus Capture by Triticale (X Triticosecale Wittmack) Forage Fertilized with Solarized Cattle or Sheep Manure. Agricultural Journal, 7: 139-145.