3121728 documents found, page 14014 of 312173
Paleoturfa associada à evolução da drenagem/paisagem em uma vertente de vereda ...
Melo Júnior, Heliomar Baleeiro deCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; This study was based on a sequence soil/paleosoil exposed by a profile cut on the side of a gully on the right side of creek Beija Flor, near its spring (19° 21 29,8 S e 47° 58 47,8 W), in the county of Uberaba, MG. The soil is classified as a Ustept, presenting Acric character and, at the 4th level, it is Plinthic, (Plinthic Acrustept ). The paleosoi...
Fonte alternativa de potássio para adubação da cana-de-açúcar
Duarte, Ivaniele NahasFundação de Amparo a Pesquisa do Estado de Minas Gerais; Sugarcane yield, technological parameters, soil chemical properties an leaf absorption of nutrients in plant and ratoon cane were analyzed to compare three application of thermopotash with three different granule sizes. Five experiments were done: three at sugar mills Vale do São Simão, Aroeira and Guaíra, applying potash in the cane planting furrows (K-f...
Aplicação de fertilizantes com diferentes tecnologias: volatilização de NH3
Machado, Vanessa JúniaFundação de Amparo a Pesquisa do Estado de Minas Gerais; Agricultural activity becomes more sustainable when production costs decrease, which is opposite to fertilizer use efficacy, where the sector still faces nutrient losses. Several studies have shown that losses occur differently due to lack of fertilizer quality or to management employed on fertilizer distribution. Thus, mixing urea with other nitrogen fer...
Deriva e análise de risco das aplicações de fungicidas, herbicidas e inseticida...
Bueno, Mariana RodriguesFundação de Amparo a Pesquisa do Estado de Minas Gerais; The use of pesticides in management of dry beans and soybeans is fundamental to maintain healthy crops. However, inadequate use of these products represent risks of contamination of the fauna, flora and humans through drift during spraying. Thus, this study quantified deposited drift after boom spraying with different nozzles to determine drift curves for...
Tecnologia de aplicação de produtos fitossanitários na cafeicultura
Gitirana Neto, JeffersonCoffee crop is an important agricultural activity in Brazil that faces great technological challenges, especially for pesticide application. This study was done to determine the effect of different spray nozzles, mixture volumes and side sprayer bar, as well as deposition of mixture on biological efficacy of control of leaf miner Leucoptera coffeella (Guérin-Méneville). Also, the performance of hydropneumatic e...
Caracterização in vitro e in planta de uma proteína quimérica com atividade ant...
Morais, Tâmara Prado deConselho Nacional de Desenvolvimento Científico e Tecnológico; The phytobacterium Ralstonia solanacearum [(SMITH, 1896) YABUUCHI et al. 1996], causative agent of bacterial wilt and Moko disease, is considered one of the world s most destructive plant pathogen. In Brazil this xylem-restricted bacterium reduces yields of agriculturally important crops and calls for effective disease management strategies, so far ...
Adubação de cobertura com nitrogênio, potássio e cálcio na producão de cenoura
Rodrigues, Wélisson LucasCarrot is the major vegetable with a commercial root. This study evaluated root yield, number and quality of carrot cultivar Brasília - RL, under different top-dressing fertilizations. The experiment was done on a Red-Yellow Latosol (Latossolo Vermelho- Amarelo), at Fazenda Olhos D Água, in São Gotardo - MG, from January to April 2006. The experimental design was randomized blocks with nine treatments (T0 = no ...
Desenvolvimento de mudas de tamarindeiro: tamanhos de recipiente, substratos, p...
Almeida, Marcelo Sales deThis study expanded the knowledge on tamarind (Tamarindus indica L.) seedling production by analyzing the effects of different container sizes and vermiculite doses in a commercial substrate and seed size and different sowing depths in a nursery seedling production. The experiments were done at the experimental farm Água Limpa in the sector of Fruit Crops, in a nursery with anti-aphid screens, with 0.38 mm2 ope...
Dorstenia cayapia: aspectos agronômicos
Carvalho, Andre FurtadoConselho Nacional de Desenvolvimento Científico e Tecnológico; Dorstenia cayapia Vellozo (Carapiá) is a native, shade living and medicinal grass. It belongs to the category "threatened" due to drastic habitat reduction and population decline to a critical level. This work was carried through in glasshouse at Laboratory of Seed Analysis and Experimental Farm of Glória, Uberlândia MG, pertaining to the Center of ...
Caracterização de tipo e raça de populações do nematóide de cisto da soja detec...
Figueiredo, AdrianaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior; The soybean is the most important oleaginous in production under extensive cultivation in Brazil occupying the second position of world production. Alongside the expansion of soybeans culture in Brazil, there was also an increase in plant health problems, including that of the soybean cyst nematode, (NCS), Heterodera glycines Ichinohe, 1952. The class...