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| Registros recuperados: 68 | |
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| Nosse, Tânia Oshiro; UNESP; Aquino, Sueli da Silva; UNESP; Cazetta, Disnei Amélio; UNESP; Arf, Orivaldo; UNESP; Cassiolato, Ana Maria Rodrigues; UNESP. |
| O objetivo deste trabalho foi verificar a influência de restos vegetais e da adubação nitrogenada em cobertura na micorrização (colonização, número de esporos dos fungos micorrízicos arbusculares) e produtividade de grãos de arroz de terras altas em plantio direto. O experimento foi conduzido na Fazenda Experimental da Unesp/Campus de Ilha Solteira, município de Selvíria (Estado do Mato Grosso do Sul). Nas parcelas principais foram testadas as leguminosas: crotalária (Crotalaria juncea L.), guandu (Cajanus cajan L.) e a mucuna-preta (Stizolobium aterrimum Piper & Tracy) e as gramíneas: milho (Zea mays L.), milheto (Pennisetum americanum L.) e sorgo-granífero (Sorghum bicolor L.), mais o pousio (vegetação espontânea), como cobertura de solo. Nas... |
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Palavras-chave: 5.01.00.00-9 Agronomia Oryza sativa L.; Adubos verdes; Micorrizas arbusculares; Cerrado. Oryza sativa L.; Green manure; Arbusculars mycorrhizal; Cerrado. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5316 |
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| Moura-Silva,Aline Gomes; Aguiar,Alana das Chagas Ferreira; Jorge,Neuza; Agostini-Costa,Tânia da Silveira; Moura,Emanoel Gomes. |
| ABSTRACT The aim of this study was to test the hypothesis that the quality and quantity of biofortified cassava root in a humid tropical environment can be modified with the application of a combination of low- and high-quality residues of leguminous tree species. The experiment was designed as a 6 × 2 factorial (a combination of 4 legume species versus 2 levels of nitrogen) with 4 replications in a randomized block design and the following treatments: Gliricidia + Acacia, Gliricidia + Leucaena, Gliricidia + Clitoria, Leucaena + Acacia, Leucaena + Clitoria, and a control without legumes. We analyzed the shoot weight, number of roots/plant, root weight, root production, proximate composition, as well as the mineral, carotenoid, and pro-vitamin A contents.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofortification; Food security; Green manure; Nutrients. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000300406 |
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| Ferreira,Enderson Petrônio de Brito; Wendland,Adriane; Didonet,Agostinho Dirceu. |
| Aiming to evaluate the effects of soil management and cover crops on microbial indicators of soil quality, an experiment was carried out under field conditions in which common bean and corn were cropped under no-tillage (NT) and conventional tillage (CT) after sunnhemp, velvet bean, pigeon pea, jack bean, sorghum and fallow (weeds). The basal soil respiration (BSR), C and N of the microbial biomass (Cmic and Nmic), metabolic quotient (qCO2), total enzymatic activity (TEA), β-glycosidase (β-GA) activity and acid phosphatase activity (APA) were evaluated in samples collected in 0-0.10 m depth. Cmic, qCO2, TEA, β-GA and APA were more sensitive in determining the effects caused by tillage and cover crops. Although the cover crops had not provided a remarkably... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green manure; Cover crops; Soil quality; Sustainability. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400024 |
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| Balota,Elcio Liborio; Chaves,Julio César Dias. |
| A field experiment was conducted for ten years in a sandy soil in the north part of the Paraná State, Brazil. The soil samples were collected at 0-10 cm depth, both under the coffee canopy and in the inter row space between the coffee plants, in the following treatments: Control, Leucaena leucocephala, Crotalaria spectabilis, Crotalaria breviflora, Mucuna pruriens, Mucuna deeringiana, Arachis hypogaea and Vigna unguiculata. The legume crops influenced the microbial activity, both under the coffee canopy and in the inter row space. The cultivation of Leucaena leucocephala increased the microbial biomass C, N and P. Although L. leucocephala and Arachis hypogaea provided higher microbial biomass, the qCO2 decreased by up to 50% under the coffee canopy and by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial biomass; Mulching; Green manure; Soil fertility. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100005 |
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| Franchini,Júlio C.; Pavan,Marcos A.; Miyazawa,Mário. |
| The objective of this study was to evaluate if cover crops can absorb P from the upper layers and transport it in their roots to subsoil layers. Samples of an Oxisol were placed in PVC columns. Super phosphate fertilizer was applied to the 0-10 cm soil surface layers. The cover crops tested were: Avena strigosa, Avena sativa, Secale cereale, Pisum sativum subsp arvense, Pisum sativum, Vicia villosa, Vicia sativa, Lupinus angustifoliu, Lupinus albus, and Triticum aestivum. After a growth period of 80 days the cover crop shoots were cut off and the soil was divided into 10cm layers and the roots of each layer were washed out. The roots and shoots were analyzed separated for total P contribution to the soil. Considerable amount of P was present in the roots... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphorus nutrition; Soil phosphorus; Green manure; No-tillage. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000300007 |
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| Ziglio,Cláudio M.; Miyazawa,Mario; Pavan,Marcos A.. |
| A falta de Ca e a presença de Al na subsuperfície do solo restringem o crescimento das raízes. A eficiência da calagem aplicada na superfície do solo na neutralização da acidez subsuperficial é limitada. Foram conduzidos experimentos de laboratório com colunas de PVC para avaliar técnicas orgânicas e inorgânicas na mobilidade do Ca em solo com carga variável. Foram conduzidos dois experimentos com sais de Ca: CaCO3, CaSO4, Ca(NO3)2, Ca-acetato e Ca-citrato, e outro com CaCO3 associado com resíduos de aveia preta, trigo e leucena. Avaliaram-se os teores de Ca trocável em solucão de KCl 1M nas profundidades de 0 a 5, 5 a 10, 10 a 20, 20 a 30, 30 a 40 e 40 a 50cm. A eficiência dos sais na mobilidade de Ca seguiu a ordem: NO3 > Acetado > Citrato > SO4... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ca-leaching; Subsoil acidity; Green manure; Plant residue. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200016 |
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| Miyazawa,Mário; Pavan,Marcos A.; Franchini,Júlio C.. |
| A baixa mobilidade do calcário aplicado na superfície do solo diminui sua eficiência na redução da acidez subsuperficial. Foram estudados os efeitos de alguns resíduos orgânicos sobre a mobilidade do calcário calcítico aplicado na superfície do solo em colunas de PVC (60 cm de altura por 15 cm de diâmetro). Avaliaram-se resíduos de aveia preta, trigo, centeio, mucuna cinza e leucena na dose equivalente a 40 Mg ha-1. Adicionaram-se os resíduos vegetais e o calcário na superfície do solo e, após um programa de irrigação equivalente a 1500 mm de chuva por ano, avaliaram-se o pH e os teores de Ca, Mg, K e Al trocáveis no solo e solúveis na água efluente. O efeito do calcário sem resíduos vegetais limitou-se aos primeiros 10 cm de profundidade. Os resíduos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Subsoil acidity; Ca leaching; Green manure. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300001 |
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| Toledo,Débora S; Costa,Cândido A; Bacci,Leandro; Fernandes,Luiz A; Souza,Manoel F. |
| Information about the production and quality of tomato cultivars under organic management and the conditions of climate and soil from the north region of Minas Gerais State, Brasil, are scarce. Thus, this research was carried out to evaluate the production and quality of tomato cultivars under organic management, in this region. The treatments consisted of four open pollination tomato cultivars (Chadwick Cherry, Pitanga vermelha, Santa Clara and Santa Cruz Kada) and five hybrid cultivars (Marguerita, Nicolas, Ellen, Magestade and Dominador). The experimental design was of randomized blocks with three replications. The experiment was carried out using organic fertilization in the initial preparation of the area, compost and rock phosphate and sprays with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Organic cropping; Green manure. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000200022 |
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| Diniz,Ellen R; Vargas,Thiago O; Pereira,Wander D; Santos,Ricardo HS; Urquiaga,Segundo; Modolo,Alcir J. |
| ABSTRACT The recommendation for green manure (GM) in cropping systems still has little scientific support, with few studies addressing the effects of nutrient amounts from green manure on the growth and production of the crop. Our aim was to evaluate the effect of levels of Crotalaria juncea green manure on the growth, production, and efficiency of the use as well as the apparent recovery of N in broccoli crop. Seven treatments were established; the main with four doses of green manure: 0, 3, 6, and 9 t/ha on a dry matter (DM) basis, applied with 12 t/ha compost. The control treatments consisted of mineral fertilization, the treatment with 25 t/ha compost, and another as the absolute control. Comparatively, production under the absolute control was less... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica oleracea var. italica; Green manure; Nitrogen.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000300395 |
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| MOITINHO, M. R.; CARNEIRO, L. F.; MOTTA, I. de S.; SALOMÃO, G. de B.; OLIVEIRA, F. L.; LA SCALA JR, N.; PADOVAN, M. P.. |
| Publicado também no Cadernos de Agroecologia, v. 7, n.2, 2012. |
| Tipo: Artigo em anais e proceedings |
Palavras-chave: Cowpea; Green manure. |
| Ano: 2012 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/938311 |
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| Registros recuperados: 68 | |
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