Nitrogen fertilization on the establishment of Arachis pintoi cv. Belmonte

Revista Brasileira de Zootecnia

Rita Manuele Porto Sales²  Daniela Deitos Fries¹  Aureliano José Vieira Pires¹  Paulo Bonomo¹  Sérgio Adorno De Santana²  Iasminy Silva Santos²  Aline Viana Rocha²  Daiane Maria Pinto Ladeia Sobral² 

[1] ,UESBItapetinga BA ,Brazil

关键词: biomass partitioning;    forage peanut;    legume;    morphogenesis;   

DOI  :  10.1590/S1516-35982012001100001

来源: SciELO

【 摘 要 】

The objective was to evaluate the effect of nitrogen fertilization on the establishment of forage peanut (Arachis pintoi cv. Belmonte) propagated vegetatively. The experiment was conducted in a greenhouse in a completely randomized design with treatments arranged in a 2 × 4 factorial design - two ages (70 and 85 days after planting) and four nitrogen doses (0, 40, 80 and 120 kg/ha) - with four replications. Morphogenetic and structural characteristics and production were evaluated. The nitrogen accelerated the establishment of the forage peanut with an increase in dry weight of green leaves and stolons. The greatest length of stolons (48.0 cm) was obtained with a dose equivalent to 86 kg N/ha and higher density of stolons (20 stolons/vase) between 78 and 82 kg N/ha. Nitrogen fertilization also reduced the phyllochron from 6.7 to 4.6 days/leaf. These data were more intense at 85 days, suggesting greater photosynthetic contribution during this period related to the large number of leaves after 70 days. Therefore, nitrogen can be an important tool to accelerate the establishment of pure stands of forage peanut.

【 授权许可】

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