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| Magolbo,Luis Augusto; Carmo,Ezequiel Lopes do; Garcia,Emerson Loli; Fernandes,Adalton Mazetti; Leonel,Magali. |
| Abstract:The objective of this work was to evaluate the effect of nitrogen fertilization on the growth and yield of arracacha (Arracacia xanthorrhiza), as well as on the plant's nutrient uptake, distribution, and removal. The experiment was carried out in a typical Oxisol, with sandy texture. A randomized complete block design was used, with four replicates. The treatments consisted of five N rates: 0, 50, 100, 200, and 400 kg ha-1. The plots were composed of three 8-m-length rows, spaced at 0.60 m between rows and 0.40 m between plants. The plants were harvested after an 8-month cycle. Nitrogen fertilization significantly increased the proportion of N and S accumulated in stems, and of Ca, Mg, Fe, and Mn in leaves. N supply increased Zn distribution to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arracacia xanthorrhiza; Dry matter allocation; Nutrient accumulation; Nutrient concentration; Storage root. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000800669 |
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| Bertol,Ildegardis; Mello,Eloy Lemos; Guadagnin,Jean Cláudio; Zaparolli,Almir Luis Vedana; Carrafa,Marcos Roberto. |
| Water erosion causes soil degradation, which is closely related to nutrient losses either in, the soluble form or adsorbed to soil particles, depending mainly on the adopted soil management system. This study was carried out in São José do Cerrito, SC, Brazil, between March 2000 and June 2001. The objective was to quantify available nitrogen, phosphorus, potassium, calcium and magnesium losses in water erosion obtained with simulated rainfall in the following soil management systems: conventional tillage with no-crop (bare soil) (BS), conventional tillage with soybean (CT), reduced tillage with soybean (RT), no tillage with soybean on a desiccated and burned natural pasture (DBNP), and no tillage with soybean on a desiccated natural pasture (DNP). A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutrient concentration; Water loss; Simulated rainfall. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300025 |
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| Oliveira,João Ricardo Gonçalves de; Silva,Eliene Matos e; Teixeira-Rios,Thaís; Melo,Natoniel Franklin de; Yano-Melo,Adriana Mayumi. |
| Schinopsis brasiliensis is an endangered tree species found in the Caatinga biome. It presents a characteristic slow development and difficult propagation, although it has been traditionally exploited in the region. Application of arbuscular mycorrhizal fungi (AMF) and phosphorus (P) fertilization may be beneficial to S. brasiliensis development at the seedling stage, which at the same time may help species conservation and the recovery of degraded areas in the Caatinga biome. We assessed the response of S. brasiliensis to AMF inoculation (Claroideoglomus etunicatum and Acaulospora longula) and P fertilization (0, 12, 24, and 48 mg dm−3 addition of P2O5). S. brasiliensis responded positively to both AMF inoculation and P fertilization. At low P... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhizal fungi; Native plants; Nutrient concentration; Seedling production; Semiarid area. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000100094 |
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