10 documents found, page 1 of 1
Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado e...
Simão,Eduardo de Paula; Resende,Álvaro Vilela de; Gontijo Neto,Miguel Marques; Silva,Alexandre Ferreira da; Godinho,Vicente de Paulo CamposAbstract: The objective of this work was to assess the grain yield and the economic response of off-season corn (Zea mays) crop subjected to different combinations of starter and topdressing nitrogen fertilization, in the Brazilian Cerrado region. The experiment was carried out in a randomized complete block design in a 3×4 factorial arrangement (0, 45, and 90 kg ha-1 N at sowing and 0, 22.5, 45, and 90 kg ha-1...
Soil physical quality in response to intensification of grain production systems
Mota,Paula K.; Silva,Bruno M.; Borghi,Emerson; Viana,João H. M.; Resende,Álvaro V. de; Moura,Maíse S. deABSTRACT The Brazilian Cerrado stands out in relation to grain production, however, in this region the occurrence of summer and irregular rainfall, drastically harm the non-irrigated production. Conservationist managements favor the soil physical quality and, consequently, the efficiency of soil water consumption. The objective of this study was to evaluate the soil physical quality, as a function of the conser...
Production efficiency and agronomic attributes of corn in an integrated crop-li...
Moreira,Elwira Daphinn Silva; Gontijo Neto,Miguel Marques; Lana,Ângela Maria Quintão; Borghi,Emerson; Santos,Claudinei Alves dos; Alvarenga,Ramon CostaAbstract: The objective of this work was to evaluate the agronomic attributes and production efficiency of corn silage and grains in an integrated crop-livestock-forestry (ICLF) system, with intercropping of eucalyptus, corn, and Urochloa cultivars during three crop years. The experimental design was completely randomized, in 2x5x3 split-split plots with four replicates. The plots consisted of corn cropped betw...
Macronutrient uptake and export in transgenic corn under two levels of fertiliz...
Silva,Carine Gregório Machado; Resende,Álvaro Vilela de; Gutiérrez,Aarón Martínez; Moreira,Silvino Guimarães; Borghi,Emerson; Almeida,Gabriela OliveiraAbstract: The objective of this work was to evaluate macronutrient uptake and export by transgenic corn hybrids under medium and high fertilization levels. For each fertilization level, a randomized complete block design was carried out in the summer crop season, under no-tillage and supplementary irrigation, with four cultivars and four replicates. Plants were sampled throughout the entire cycle and separated ...
Economic analysis of sorghum consortia with forages or with dwarf pigeon pea su...
Pascoaloto,Isabô Melina; Andreotti,Marcelo; Cruz,Sanderley Simões da; Sabbag,Omar Jorge; Borghi,Emerson; Lima,Gilmar Cotrin de; Modesto,Viviane CristinaAbstract: The objective of this work was to determine the most economically viable integrated no-tillage crop-livestock system by intercropping sorghum with tropical forages or dwarf pigeon pea, succeeded by soybean or corn, over a two-year period. The experiment was carried out in a randomized complete block design with four replicates. The treatments consisted of forage sorghum intercropped with: 'Marandu' gr...
Straw production and agronomic performance of soybean intercropped with forage ...
Andrade,Carlos Augusto Oliveira de; Borghi,Emerson; Bortolon,Leandro; Bortolon,Elisandra Solange Oliveira; Camargo,Francelino Peteno deAbstract: The objective of this work was to evaluate the straw production and the agronomic performance of soybean intercropped with oversown forage species, in no-tillage system. A randomized complete block design was carried out with four replicates, in a 5×2+2 factorial arrangement, as follows: five forage species - Urochloa brizantha 'Marandu', Urochloa ruziziensis, Panicum maximum 'Mombaça', Panicum maximu...
Nitrogen fertilization (15NH4NO3) of palisadegrass and residual effect on subse...
Borghi,Emerson; Crusciol,Carlos Alexandre Costa; Trivelin,Paulo Cesar Ocheuze; Nascente,Adriano Stephan; Costa,Ciniro; Mateus,Gustavo PavanNitrogen is required in large amounts by plants and their dinamics in corn and perennial forages intercropped is little known. This study analyzed the efficiency of nitrogen fertilization (15NH4NO3) applied after corn grain harvest to palisadegrass (Brachiaria brizantha cv. Marandu) in intercrops sown at two times, as well as the N residual effect on the subsequent corn crop. The field experiment was performed ...
Épocas de aplicação de nitrogênio em feijoeiro cultivado após milho solteiro ou...
Soratto,Rogério Peres; Fernandes,Adalton Mazetti; Pilon,Cristiane; Crusciol,Carlos Alexandre Costa; Borghi,EmersonO objetivo deste trabalho foi avaliar a resposta do feijoeiro a épocas de aplicação de N, em sistema plantio direto, após cultivo de milho solteiro ou consorciado com braquiária. O delineamento experimental utilizado foi em blocos ao acaso, com arranjo de parcelas subdivididas e quatro repetições. As parcelas consistiram de: cultivo de milho solteiro ou milho consorciado com braquiária, nas duas safras de verão...
Intervalo hídrico ótimo e compactação do solo com cultivo consorciado de milho ...
Calonego,Juliano Carlos; Borghi,Emerson; Crusciol,Carlos Alexandre CostaO cultivo consorciado entre a espécie forrageira e a cultura produtora de grãos garante a produção de forragem no outono-inverno, além de palha para cobertura do solo em sistema semeadura direta. O aporte de matéria seca radicular no perfil do solo possibilita a melhoria da qualidade estrutural do solo. Objetivou-se com este experimento verificar as alterações nos atributos físicos e físico-hídricos do solo com...
Produtividade de milho, espaçamento e modalidade de consorciação com Brachiaria...
Borghi,Emerson; Crusciol,Carlos Alexandre CostaO objetivo deste trabalho foi avaliar a influência, sobre a produtividade de grãos, da modalidade de consorciação da Brachiaria brizantha cultivar Marandu com a cultura do milho, em dois espaçamentos de semeadura, em sistema plantio direto. O experimento foi instalado em campo, em 2002/2003 e 2003/2004, na Fazenda Experimental Lageado (Unesp), Botucatu, SP. O delineamento experimental foi o de blocos ao acaso, ...