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| Registros recuperados: 10 | |
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| ABBAS,A.; KHALIQ,A.; SAQIB,M.; MAJEED,M.Z.; ULLAH,S.; HAROON,M.. |
| ABSTRACT: Weeds cause considerable damage to rice crop. To ascertain the influence of different weed management practices under different tillage systems, a field experiment was conducted during 2014-15. Experimental design was RCB with split-plot arrangement and with a net plot size of 6 x 2 m. Three tillage systems viz; zero tillage with glyphosate application and conventional tillage with and without stale seed bed, and seven weed management treatments viz; weedy check, manual weeding, oxadiargyl as pre-emergence, pyrazosulfuron as pre-emergence, pyrazosulfuron as post-emergence, fenoxaprop-ethyle + sodium fluoride as post-emergence and fenoxaprop-ethyle + sodium fluoride as post-emergence. Results revealed that all treatments including tillage systems... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L.; Direct-seeded rice; Tillage systems; Herbicides; Integrated weed management. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100280 |
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| Serrano, Arturo; Suarez de Cepeda, M.; Sanchez-Giron, V.. |
| RESUMEN: El objetivo de este trabajo es evaluar, desde un punto de vista económico, el efecto que supone pasar de un sistema de laboreo tradicional a uno de laboreo reducido en explotaciones cerealistas de la meseta castellana. Se utilizan datos experimentales de campo para estimar las producciones, así como un sistema de decisión experto para seleccionar el parque de maquinaria que conlleva el menor coste de utilización. La rotación de cultivos que se ha considerado ha sido trigo/leguminosa. No se encontraron diferencias significativas entre los rendimientos obtenidos en los tres sistemas de laboreo comparados. Los resultados económicos se muestran condicionados por el sistema de laboreo empleado y el tamaño de la explotación. |
| Tipo: Journal Article |
Palavras-chave: Economic analyses; Farm size; Rainfed crops; Tillage systems; Agricultural and Food Policy; Q12. |
| Ano: 2008 |
URL: http://purl.umn.edu/57234 |
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| Álvarez,Carina Rosa; Costantini,Alejandro Oscar; Bono,Alfredo; Taboada,Miguel Ángel; Boem,Flavio Hernán Gutiérrez; Fernández,Patricia Lilia; Prystupa,Pablo. |
| One of the expected benefits of no-tillage systems is a higher rate of soil C sequestration. However, higher C retention in soil is not always apparent when no-tillage is applied, due e.g., to substantial differences in soil type and initial C content. The main purpose of this study was to evaluate the potential of no-tillage management to increase the stock of total organic C in soils of the Pampas region in Argentina. Forty crop fields under no-tillage and conventional tillage systems and seven undisturbed soils were sampled. Total organic C, total N, their fractions and stratification ratios and the C storage capacity of the soils under different managements were assessed in samples to a depth of 30 cm, in three layers (0-5, 5-15 and 15-30 cm). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: No-tillage; Soil organic matter fractions; Tillage systems; Carbon stratification; C and N stocks. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000600015 |
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| Hosseini,Seyed Z.; Firouzi,Saeed; Aminpanah,Hashem; Sadeghnejhad,Hamid R.. |
| Field experiment was conducted at Agricultural and Natural Resources Research Center of Golestan Province, Iran, to determine the effects of tillage system and weed management regime on yield and weed populations in soybean ( Glycin max L.). The experimental design was a split plot where the whole plot portion was a randomized complete block with three replicates. Main plots were tillage system: 1- No-till row crop seeding, 2- No-till seed drilling, 3- Tillage with disc harrow and drill planting, 4- Tillage with chisel packer and drill planting. The subplots were weed management regimes: 1-Weed control with herbicide application, 2- Hand weeding, 3- Herbicide application plus hand weeding, and 4- Non-weeding. Results indicated that the main effects of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soybean; Tillage systems; Weed management regimes; Yield; Yield components. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100377 |
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| Dias,Adriana Cristina; Silva,Marx Leandro Naves; Freitas,Diego Antonio França de; Batista,Pedro Velloso Gomes; Curi,Nilton; Carvalho,Gabriel José de. |
| Water erosion is responsible for soil, water, carbon and nutrient losses, turning into the most important type of degradation of Brazilian soils. This study aimed to evaluate the influence of three cover plants under two tillage systems on water erosion control in an Argisol at south of Minas Gerais state, Brazil. The cover plants utilized in the study were pigeon pea, jack bean and millet, under contour seeding and downslope tillage. Experimental plots of 4 x 12 m, with 9% slope, under natural rainfall were used for the quantification of losses of soil, water, nutrients, and organic matter. One experimental plot was kept without plant cover (reference). Higher erosivity was observed in December and January, although a great quantity of erosive rainfall... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Tillage systems; Vegetal cover; Erosivity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500004 |
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| Registros recuperados: 10 | |
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