Soybeans
Mostrando 37-48 de 587 artigos, teses e dissertações.
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37. INFLUENCE OF THE PLOTS FORMAT ON THE PERFORMANCE INDEX OF THE SOYBEAN COMBINE HARVESTER
ABSTRACT: The intensive mechanization during the harvest operation and success of this operation depends on several factors, one of which is the length and format of the plots. The aim of this study was to evaluate the operating performance of a soybean harvester in different geometric plots shape, using as quality indicators performance parameters by means
Eng. Agríc.. Publicado em: 2017-09
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38. Morning glory species interference on the development and yield of soybeans
ABSTRACT Plants from the genus ipomoea are among the most important weeds in Brazil. The objective of this study was to determine the impact of different densities of 2 species of Ipomoea (I. grandifolia and I. purpurea) under different environments (counties of Pato Branco and Renascença, Paraná state, Brazil) on soybean biometric variables, yield compone
Bragantia. Publicado em: 14/08/2017
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39. SPRAY DRIFT AND PEST CONTROL FROM AERIAL APPLICATIONS ON SOYBEANS
ABSTRACT Pesticide drift is an issue in modern farming, mainly for crops under constant spraying as soybeans. This study aimed at assessing drift and pest control for aerial applications in soybean crops. Hydraulic nozzles and rotary atomizers, regulated to a wide spectrum of droplet sizes, sprayed thiamethoxam plus lambda-cyhalothrin using an agricultural a
Eng. Agríc.. Publicado em: 2017-06
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40. Mechanisms of Endothelial Protection by Natural Bioactive Compounds from Fruit and Vegetables
ABSTRACT The endothelium is fundamental for the regulation of vascular tone and structure. Under disease conditions, including the presence of cardiovascular disease risk factors, the endothelium loses its protective role and becomes a proatherosclerotic structure. In this article we searched for strategies from PUBMED and Science Direct databases using the
An. Acad. Bras. Ciênc.. Publicado em: 22/05/2017
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41. Surface Integrity Characterization of Hardened AISI 4340 Steel in Grinding Process with Biodegradable Formulations of Cutting Fluids
Surface integrity has significant effect on service performance of a component. The surface integrity of workpieces submitted to grinding process depends on the conditions of cooling produced by cutting fluids, which are used to avoid microstructural damage in the process. However, cutting fluids are harmful to the environment and human health, and appear as
Mat. Res.. Publicado em: 20/02/2017
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42. AGRONOMICAL ATTRIBUTES OF SOYBEANS AND SOIL RESISTANCE TO PENETRATION IN NO-TILLAGE AND CHISELED SURFACES
ABSTRACT Farming systems may affect soil properties and crop production of components, decreasing yields. This study aimed to assess penetration resistance (PR) and agronomic traits of soybeans under no-tillage (NT) and chiseling (CP). The experiment was carried out in a randomized block with two treatments (tillage and scarification) with 12 repetitions; ye
Eng. Agríc.. Publicado em: 2017-02
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43. MULTICRITERIA DECISION AID TO IMPLEMENT AN ON-FARM STORAGE SYSTEM FOR SOYBEANS
ABSTRACT: Implementing an on-farm storage system for agricultural products becomes a complex decision problem when considering risks, benefits, uncertainties and alternatives. This study aimed at applying the multicriteria decision aid (MCDA) approach to select the infrastructure to be implemented, taking into account variables and farmer's goals. As a resul
Eng. Agríc.. Publicado em: 2016-12
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44. Comparison of beat cloth and entomological net methods for determining faunistic indices of soybean in Rio Grande do Sul, Brazil
ABSTRACT Estimates of diversity indices provide information on distribution, richness and abundance of species within a community. The aim of the current study was to estimate faunistic indices (richness, constancy, dominance and abundance) of the species collected by beat cloth and entomological net sampling methods in different soybean crops and to determi
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-12
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45. Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources
ABSTRACT The objective of this study was to evaluate the effect of lipid sources on voluntary intake, digestibility, performance, and CH4 emission of Nellore steers grazing Brachiaria brizantha cv. Xaraés forage in the dry season. Forty-five Nellore steers with average weight of 442±34 kg were alloted into one of the five treatments: without additional fat
R. Bras. Zootec.. Publicado em: 2016-12
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46. Effects of Different Numbers of Fungicide Application on the Proximate Composition of Soybean
This study aimed to evaluate the effect of strobilurin (pyraclostrobin) + triazole (epoxiconazole) fungicides application on the proximate composition of soybeans. Six treatments of varying numbers of fungicide applications following soybean germination, termed T1 (control), T2, T3, T4, T5, and T6, were assessed for this experiment. Based on the results, the
J. Braz. Chem. Soc.. Publicado em: 2016-10
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47. Brachiaria as a Cover Crop to Improve Phosphorus Use Efficiency in a No-till Oxisol
ABSTRACT Oxidic soils are phosphorus drains in soil; hence, P availability is a limiting factor in tropical, weathered Oxidic soils. It has been shown that some brachiarias grown as cover crops may increase soil available P to subsequent crops. The objective of this study was to evaluate soil P cycling and availability, as well as the response of soybean to
Rev. Bras. Ciênc. Solo. Publicado em: 19/09/2016
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48. RNAi-mediated resistance to SMV and BYMV in transgenic tobacco
Abstract Soybean mosaic virus (SMV) and bean yellow mosaic virus (BYMV) are two typical types of viruses that cause mosaic in soybean plants. Multiple viral infections at the same site can lead to 66% to 80% yield reduction. We have aimed to improve SMV and BYMV resistance in Vietnamese soybeans using gene transfer techniques under the mechanism of RNAi. In
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-09