ChileanJAR

Two experiments were carried out at La Platina Experiment Station (INIA), Santiago, during 1975/76 and 1976/7 7, to determine the effects of N and P on the productivity and bulb quality of garlic, cv. Valenciano Rosado (AlIium sativum L.). The soil (Santiago series) analysis indicated that the initial leveis were 36 ppm for N, 17 ppm for P, and 16 ppm for K. In Experiment 1, phosphorus was applied at 0, 15.7, 31 .4, 47.0, 62.8, 78.5 and 94.2 kg of P/ha. There was no effect on yield or quality. Also, the different rates of P did not affect the quality of the stored bulbs, up to 271 days after harvesting. In Experiment 2, 16 combinations of nitrogen and phosphorus were studied. Nitrogen was used at 0,75, 150, and 225 kg/ha; phosphorus at 0, 58.9, 98.1 and 137.4 kg/ha. No interaction was shown, and when the effects of these fertilizers were analyzed independently, it was concluded that P had no effect and that N increased the yield and quality of the bulbs, up to 150kg of N/ha.