Canavalia ensiformis AS A GREEN FERTILIZER IN THE ESTABLISHMENT OF Brachiaria brizantha cv. TOLEDO
In order to evaluate the effect of Canavalia ensiformis green fertilizer on biomass yield and dry matter of Brachiaria brizantha CIA-26110 cv. Toledo, a trial was conducted under conditions of prolonged drought and the uncommon practice of pasture fertilization. The study was stablished at the experimental station in El Ejido, Los Santos, Panama. It was used a completely randomized experimental design with six treatments and three repetitions. It was used an experimental plot of 25 m2, were Canavalia biomass was incorporated into the soil 75 days after planting and Toledo grass was planted 30 days later. The treatments were: T1 = Canavalia, T2 = Canavalia + 40 kg N/ha, T3 = Canavalia + 80 kg N/ha, T4 = 40 kg N/ha, T5 = 80 kg N/ha and T6 = witness. Toledo cutting was performed 90 dds. Management practice with and without Canavalia and nitrogen levels (0, 40 and 80 kg/ha) were included in the statistical analysis; also, interactions and differentiation of means by Duncan were analyzed. Dry matter content of T2 and T3 (7,64 t/ha and 7,53 t/ha) were similar and between then but difference from control treatment (4,13 t/ha). It was concluded that the highest yield of Toledo, dry matter was found when Canavalia more synthetic nitrogen was included. The contribution of nitrogen per Canavalia ensiformis, replaced the maximum recommended level of synthetic nitrogen for pasture establishment, reflecting savings of 48% of the cost of production/ha/year.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto de Innovación Agropecuaria de Panamá
2016
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| Online Access: | http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/117 |
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