Produção de alface (Lactuca sativa L.), em função de diferentes concentrações e tipos de biofertilizantes

• Main Authors: Thiago Pereira de Sousa, Eduardo Pereira de Sousa Neto, Luana Raposo de Sá Silveira, Elias Francisco dos Santos Filho, Patrício Borges Maracajá
• Format: Article
• Language: English
• Published: Grupo Verde de Agroecologia e Abelhas (GVAA) 2014-12-01
• Series: Revista Verde de Agroecologia e Desenvolvimento Sustentável
• Subjects: Hortaliça folhosa, adubação orgânica, urina de vaca.
• Online Access: http://www.gvaa.com.br/revista/index.php/RVADS/article/view/2886

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Objetivou-se com este trabalho, estudar o efeito de diferentes concentrações de urina de vaca e biofertilizante aplicados via foliar na cultura da alface em condições edafoclimáticas do município de Catolé do Rocha-PB. O experimento foi conduzido em condições de campo na estação experimental agroecológica do Campus IV da UEPB. O delineamento experimental utilizado foi em blocos casualisados com 12 tratamentos, no esquema fatorial 6x2, com 4 repetições. Testou-se 06 concentrações de biofertilizante: (C₁= 0,0; C₂= 10; C₃= 20; C₄= 30; C₅= 40 e C₆= 50 m/L planta/vez, respectivamente) e aplicação do biofertilizante (T₁) e da urina de vaca (T₂), na produção da alface. Utilizou-se sementes da cultivar Elba (grupo crespo). Avaliou-se: <span style="mso-no-proof: yes;">número de folhas (NF), peso verde da folha </span>(PVF) <span style="mso-no-proof: yes;">e peso verde da parte aérea </span>(PVPA). As concentrações de biofertilizante se comportaram de maneira semelhante dentro dos tipos de biofertilizante e vice-versa<span style="mso-no-proof: yes;">. </span>As plantas de alface Elba submetidas á concentração C₃= 20 ml/L planta/vez, na presença de urina de vaca (T₂) proporcionaram maiores taxas de desenvolvimento foliar.</span></p><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" DefUnhideWhenUsed="true" DefSemiHidden="true" DefQFormat="false" DefPriority="99" LatentStyleCount="267"> <w:LsdException Locked="false" Priority="0" SemiHidden="false" UnhideWhenUsed="false" QFormat="true" Name="Normal" /> <w:LsdException Locked="false" Priority="9" SemiHidden="false" UnhideWhenUsed="false" QFormat="true" Name="heading 1" /> <w:LsdException Locked="false" Priority="9" QFormat="true" Name="heading 2" /> <w:LsdException Locked="false" Priority="9" QFormat="true" Name="heading 3" /> <w:LsdException Locked="false" Priority="9" QFormat="true" Name="heading 4" /> <w:LsdException 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