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| Registros recuperados: 24 | |
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| Mirnezami, Seyed Vahid; Chegini, Gholamreza. |
| Residual straw status on the field after harvesting was one of the important obstacles in using stripper header in Iran. In this work, combine performance studied with two type headers, conventional and stripper in wheat farm. Residual stems after harvesting collected, baled, and two methods were compared. The results showed that fuel consumption in the stripper header was 5.68 L/ha less than the conventional header. Combines with stripper header harvested 1500 m2 more than the conventional header in each hour. Stripper header in comparison with the conventional had 21% harvesting efficiency and 840 kg/h field performance which harvested more wheat. Harvesting time and fuel consumption for straw harvesting operation in the harvested field with stripper... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Straw; Stripper header; Combine performance. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3206 |
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| Andrade,Meire Cristina Nogueira de; Zied,Diego Cunha; Minhoni,Marli Teixeira de Almeida; Kopytowski Filho,João. |
| Three compost formulations, consisting of two varieties of Cynodom dactylon (L.) Pers. (Coast-cross and Tyfton) and oat (Avena sativa) straw were tested for the cultivation of A. bisporus strains ABI-01/01, ABI-04/02, ABI-05/03, and ABI-06/04. A completely randomized experimental design in a factorial scheme was adopted, with 12 treatments (4 A. bisporus strains × 3 types of compost) and 8 replicates. Each experimental unit corresponded to one box containing 12 12.5 kg fresh wet compost. The data were submitted to analysis of variance and the means were compared by Tukey test. According to the results, productivity of mushrooms was influenced by strain and/or compost type. It was also verified that crude protein, ash, and crude fiber contents in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agaricus bisporus; Strains; Straw; Nutritional composition; Productivity. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300034 |
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| Cervi,Walter R.; Lamparelli,Rubens; Berni,Mauro; Rocha,Jansle. |
| ABSTRACT The present study aims to present the main concepts of the sugarcane straw to energy planning. Throughout the study, the subject is contextualized highlighting broader aspects of sustainability, which is considered the main driver towards agro-energy modernization. Concerning sugarcane straw, we first evaluated its availability regarding technical and economic aspects, and then it summarized the straw production chain for energy supply purposes. As a proposal to support agro-energy planning, it is presented some spatial tools that have been barely used in the Brazilian energy planning context so far. Therefore, working on straw to electricity associated with supply chain basis, we developed a conceptual model to spatially assess this bioenergy... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugarcane; Straw; Agro-energy planning; Geographic information system. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000601210 |
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| GARCIA, R. A.; SUTIER, G. A. da S.. |
| Os resíduos do sorgo-sacarino, pela liberação de substâncias alelopáticas, podem afetar negativamente o desenvolvimento da cultura em sucessão. Nesse contexto, objetivou-se avaliar os efeitos dos resíduos de duas cultivares de sorgo-sacarino na soja Semeada em sucessão, em função de intervalos para semeadura após o manejo do sorgo. O experimento foi conduzido em casa de vegetação na Embrapa Agropecuária Oeste, em Dourados, MS, em vasos com capacidade de 14 litros. O delineamento utilizado foi inteiramente casualizado, em esquema fatorial 2x4, com quatro repetições. Os tratamentos foram constituídos por duas cultivares de sorgo (BRS 506 e BRS 511) e quatro intervalos para semeadura da soja após manejo da gramínea (0, 3, 6 e 9 dias). As plantas de sorgo... |
| Tipo: Folhetos |
Palavras-chave: Crescimento radicular; Agroenergia; Sorgoleone; Root; Growth; Palhada; Bioenergy; Straw. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1054658 |
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| Tonieto,T.A.P.; Regitano,J.B.. |
| Green sugarcane harvesting may promote great changes in the dynamics of herbicides in the environment. Our goal was to evaluate the influence of straw decomposition degree on leaching and weed (Ipomoea grandifolia) control efficacy by (14C) tebuthiuron and hexazinone. The presence of straw on the soil surface affected leaching, mainly for hexazinone (leaching reduced from 37 to 5% of the applied amount in the presence of straw). Overall, tebuthiuron showed more efficient control of Ipomoea than hexazinone. The straw decomposition degree affected only hexazinone efficacy that was lowest for the least decomposed straw. Further studies are needed to evaluate the effects of sugarcane straw on herbicides dissipation, particularly on volatilization and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tebuthiuron; Hexazinone; Straw; Decomposition; Sugarcane; Ipomoea spp. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000400016 |
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| Nascente,A.S.; Guimarães,C.M.; Cobucci,T.; Crusciol,C.A.C.. |
| The correct management of cover crops in no-tillage aims to obtain greater benefits with its introduction in agricultural systems. The use of forage species such as Brachiaria, due to the large amount of biomass and for persisting longer on the ground, has become a good option. In this sense, an important point is the time interval between the cover desiccation with glyphosate and planting of rice in order to obtain higher operating income in the sowing, greater availability of nutrients, greater presence of straw on the soil surface, and lower release of possible allelopathic substances. The objective of this study was to assess the effect of the management of B. ruziziensis, with or without herbicide, preceding the crop planting, in the yield components... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil management; Straw; Cover crops; No tillage system; Glyphosate. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000400006 |
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| VARGAS,L.A.; PASSOS,A.M.A.; KARAM,D.. |
| ABSTRACT: Searching for alternatives to deal with weeds without the exclusive use of herbicides can increase the sustainability of agricultural production in the Amazon region. This study aimed to evaluate the allelopathic potential of cover crops on the weed shrubby false buttonweed (Spermacoce verticillata L.). Three straw levels (1; 2.5 and 5 mg cm-2) of thirteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, C. ochroleuca, C. spectabilis, Mucuna aterrima, M. cinereum, Pennisetum glaucum, Sorghum bicolor, S. sudanense, Urochloa brizanha cv. Xaraés, U. brizantha cv. Piatã and U. ruziziensis) were assessed on germination and initial growth of weed and lettuce. We carried out two experiments (weed and lettuce) in a factorial scheme... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allelopathy; Crop control; Leguminous; Sandwich method; Straw. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100253 |
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| TROPALDI,L.; BRITO,I.P.F.S.; DIAS,R.C.; TRINDADE,M.L.B.; CARBONARI,C.A.; VELINI,E.D.. |
| ABSTRACT: Maintenance of straw on the soil surface in sugarcane production areas can influence weed occurrence and herbicide dynamics. After application, considerable losses of clomazone can occur as a result of its physicochemical characteristics. For this reason, novel formulations have been developed. In addition to the conventional formulation, microencapsulated formulations are currently available. Thus, the aim of this study was to observe and compare the effect of clomazone formulations under different application conditions. For this purpose, the experiment was carried with 12 treatments in a completely randomized design, with four replications, using clomazone formulations (1,200 g a.i. ha-1), on soils with different moisture levels, in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Straw; Herbicide; Volatilization; Ipomoea nil (L.) Roth; Urochloa decumbens (Stapf.) R.D.Webster; Panicum maximum Jacq. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100274 |
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| Favarato,L.F.; Galvão,J.C.C.; Souza,J.L.; Guarçoni,R.C.; Souza,C.M.; Cunha,D.N.. |
| Currently, one of the biggest challenges faced by organic no-tillage farming is weed control. Thus, the use of cropping practices that help in the control of weeds is extremely important. The objective of this study was to evaluate population density and level of weed infestation in an organic no-tillage corn cropping system under different soil covers. The experiment was conducted in a randomized block design with six repetitions and five treatments, consisting of three soil covers in an organic no-tillage system, and an organic and a conventional system, both without soil cover. The treatments with soil cover used a grass species represented by the black oat, a leguminous species represented by the white lupine, and intercropping between both species.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena strigosa; Lupinus albus; Straw; Organic farming. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000400008 |
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| Yang, Li-sha. |
| On the basis of expounding the status quo and using developmental trend of China’s straw, 4 indices are selected: straw yield, planting area, using amount of fertilizer and effective irrigation area. According to the relevant data of China Statistical Yearbook from 1991 to 2008, by using linear regression model, we calculate China’s rural straw yield, analyze the factors impacting straw yield, and point out that the using amount of fertilizer is the important factor impacting straw yield. Based on these, in the perspective of low-carbon agricultural economy, we put forward suggestions of using straw comprehensively from 4 perspectives in order to provide theoretical reference for decision-makers: improve fertilizer dependence; develop straw reuse... |
| Tipo: Journal Article |
Palavras-chave: Village; Straw; Low-carbon agriculture; Measuring; China; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/108472 |
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| Tavares,Rose Luiza Moraes; Souza,Zigomar Menezes de; Scala Jr,Newton La; Castioni,Guilherme Adalberto Ferreira; Souza,Gustavo Soares de; Torres,José Luiz Rodrigues. |
| ABSTRACT The sugarcane green harvest system, characterized by mechanized harvesting and the absence of crop burning, affects soil quality by increasing crop residue on the soil surface after harvest; thus, it contributes to improving the physical, chemical, and microbiological properties and influences the soil carbon content and CO2 flux (FCO2). This study aimed to evaluate the spatial and temporal variability of soil FCO2 in sugarcane green harvest systems. The experiment was conducted in two areas of sugarcane in São Paulo, Brazil: the first had a 5-year history of sugarcane green harvest (SG-5) and the second had a longer history of 10 years (SG-10). The temporal FCO2 were evaluated in the dry and rainy periods, and spatial variability in the dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CO2 emission; Soil respiration; Straw; Mechanized harvest; Physical properties. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100524 |
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| Castagnara,Deise Dalazen; Neres,Marcela Abbado; Oliveira,Paulo Sérgio Rabello de; Meinerz,Cristiane Claudia; Mesquita,Eduardo Eustáquio. |
| The study was conducted to estimate the dehydration curves, chemical composition, and occurrence of fungi in white oat hay (Avena sativa L. cv. Guapa BRS) and black oat hay (Avena strigosa Schreb cv. Common) at two cutting heights. Dehydration curves were studied under a randomized block design with a 2 × 2 factorial arrangement using split plots in time, considering two types of oats (white and black), two cutting heights (10 and 20 cm), and 17 sampling times (0, 4, 19, 24, 28, 43, 47, 52, 67, 71, 76, 91, 95, 100, 115, 129, and 124 hours after harvesting) with five replicates. For the chemical composition and occurrence of fungi, the experimental design comprised randomized blocks in a factorial 2 × 2 split-plot in time with two types of oats, two cutting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena spp; Crude protein; Dehydration curves; Storage fungi; Straw. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500002 |
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| Registros recuperados: 24 | |
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