Grass Roots
Mostrando 13-24 de 79 artigos, teses e dissertações.
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13. Productive, nutritional and metabolic characteristics of marandu palisadegrass grown with nitrogen and magnesium rates / Características produtivas, nutricionais e metabólicas do capim-marandu submetido a doses de nitrogênio e magnésio
Productive, nutritional and metabolic characteristics of the forage plants may be changed by the nitrogen and magnesium availability. The objective was to study the effects of nitrogen and magnesium rates on marandu palisadegrass growth, by evaluating the shoot and root yield, leaf and root concentrations of nutrients and leaf concentration of inorganic form
Publicado em: 2010
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14. NEMATÓIDES ENTOMOPATOGÊNICOS COMO CONTROLADORES BIOLÓGICOS DE CIGARRINHAS DO GÊNERO Mahanarva (HEMIPTERA: CERCOPIDAE)
The spittlebugs belonging to the genus Mahanarva cause damage to the Poaceae family cultures, like signal grass, elephant grass and sugar cane, by the sap feeding on roots (immature phase) and leaves (adult phase). With the increase demand to reduce use of chemical insecticides for the insect pests control, comes the need to develop new control methods. In t
Publicado em: 2010
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15. Doses de nitrogênio e de enxofre para a recuperação de pastagem com capim-braquiária: atributos de parte aérea, raízes e fertilidade do solo / Nitrogen and sulfur rates for a Signal grass pasture recovery: forage aboveground and roots, and soil fertility attributes
Fertilizer application has been essential to pastures establishment, maintenance and recovery, whereas sulfur supply may be inadequate for grasses receiving high nitrogen rates. The objectives were to study the effects of combined nitrogen and sulfur rates in a degrading Signal grass (Brachiaria decumbens) pasture, by evaluating productive, morphological, ph
Publicado em: 2009
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16. Suprimento de nitrogênio e de potássio e características morfogênicas, nutricionais e produtivas do capim-Marandu / Nitrogen and potassium supply and the morphogenetic, nutritional and productive characteristics of Marandu palisadegrass
Nitrogen and potassium are essentials for plant development, are extracted by plants in high amounts and their availabilities may change the morphogenetic, productive and nutritional characteristics of plants. The objectives of this research were: a) to assess fertilization with nitrogen and potassium rates on morphogenetic and shoot and root dry matter prod
Publicado em: 2009
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17. Avaliação do sistema estomatognático e de sincrânios de lobo-guará (Chrysocyon brachyurus) em vida livre e cativeiro / Oral and skull evaluation of captive and wildlife maned wolves (Chrysocyon brachyurus)
The maned wolf, Chrysocyon brachyurus, is the largest wild canid inhabiting South America, specially areas with tall grass, fence and bush forest. They are omnivorous and their most important dietary components are small mammals, reptiles, insects, forage plants and fruits. There are few studies about oral diseases in free-ranging and captive maned wolves. T
Publicado em: 2009
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18. QUANTIFICAÇÃO DAS RAÍZES FINAS EM UM POVOAMENTO DE Pinus taeda L., NA REGIÃO DOS CAMPOS DE CIMA DA SERRA, RS / QUANTIFICATION OF FINE ROOTS IN A Pinus taeda L. STAND IN CAMPOS DE CIMA DA SERRA REGION, RS
O presente estudo foi realizado no município de Cambará do Sul, RS, Brasil. Os objetivos do trabalho foram: quantificar comparativamente, o comprimento e a biomassa de raízes finas (≤ 2,0 mm) no solo e na serapilheira e relacionar comparativamente, variáveis químicas e físicas do solo em um povoamento de Pinus taeda L., com 15 anos de idade, e um
Publicado em: 2009
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19. Xaraés palisadegrass under grazing: agronomic, morphological, and physiological responses, and adapting the CROPGRO model for predicting forage growth / Capim Xaraés sob pastejo: respostas agronômicas e morfofisiológicas, e adaptação do modelo CROPGRO para a predição de crescimento
On optimization of the animal production systems using models, morphological and physiological aspects of forage plants is required. Moreover, is necessary to understand grazing effects on regrowth, and consequently, on forage mass accumulation. The objective of this research was to evaluate the morphological and physiological responses, and adapting the CRO
Publicado em: 2009
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20. Investigação do potencial alelopático de Pittosporum undulatum Vent / Assesment of allelopathic potential in cheesewood (Pittosporum undulatum Vent)
Pittosporum undulatum Vent., an Australian tree implicated in supression of tree recruiment in many ecosystems, is found invading secondary Araucaria forests in subtropical Brazil. The first chapter of this study aimed to investigate the role of allelopathy in the invasive proccess, accessing germination and growth of Bauhinia forficata Link. in presence of
Publicado em: 2009
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21. Associative diazotrophic bacteria in grass roots and soils from heavy metal contaminated sites
Objetivou-se avaliar a densidade de populações de bactérias diazotróficas associativas em amostras de solos e de raízes de gramíneas oriundas de sítios contaminados com metais pesados, e caracterizar isolados destas populações através da análise fenotípica (tolerância aos metais pesados zinco e cádmio e à NaCl in vitro, perfis protéicos), e g
Anais da Academia Brasileira de Ciências. Publicado em: 2008-12
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22. Seed treatments with insecticides, mixture of fertilizers and sowing depths on the emergence and growth of Brachiaria grasses / Tratamento de sementes com inseticidas, mistura com fertilizantes e profundidades de semeadura na emergência e crescimento de braquiária
The mixture of seeds of forage species to fertilizers at sowing time can reduce operational costs and favour the associate cultivation of crops such as corn and beans, specially when the crop-cattle Integration System (ILP) is employed. However, the contact of the fertilizer with the seed can impair the germination, the emergence and the establishment of the
Publicado em: 2008
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23. Understanding the revival and survival of grass-roots associations in China: the perspective of four categories of legitimacy
Os grupos de base chineses têm tido uma relação complicada com a ordem social durante os últimos 30 anos. Este artigo tem como objetivo, usando uma série de conceitos práticos sobre legitimidade, de Weber a Habermas, analisar o reavivamento e o funcionamento presente desses grupos, especialmente as associações de base sobre religião e folclore. Como
Horizontes Antropológicos. Publicado em: 2007-06
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24. Suprimento combinado de fósforo e magnésio para a produção e nutrição do capim-Tanzânia / Combined supply of phosphorus and magnesium for Tanzania grass production and mineral nutrition
Due to the potential for high yield and nutritional value, Tanzania grass stands out as an excellent option cultivar of the Panicum maximum specie to the Brazilian livestock production. It is known that this grass usually need high soil fertility. The objective was to evaluate the response of Tanzania grass to combinations of phosphorus and magnesium rates,
Publicado em: 2007