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| Registros recuperados: 2.199 | |
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| Men, Ke-pei; Zhao, Kai. |
| In order to analyze the relation between agricultural input factors and economic growth in Anhui Province, the evaluation index system of agricultural input is built from the perspectives of subject, object and tools based on grey system theory. The government investment in agricultural science and technology is selected as the index of labor subject, that is labor-related index（X1）, the total sown area of crops is selected as the index of labor object（X2）, the investment in rural water and electricity construction is chosen as the index of tools（X3）, and the GDP of Anhui Province is denoted by X0. According to the relevant data, the improved model of grey correlation analysis is adopted... |
| Tipo: Journal Article |
Palavras-chave: Anhui Province; Agricultural input factors; Grey correlation; GDP; China; Agribusiness. |
| Ano: 2010 |
URL: http://purl.umn.edu/93664 |
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| Liu, Yang; Liu, Huijun. |
| Characteristics of interest subjects in land circulation market of rural China are introduced, which are land supplier (peasant household) and requester (large household). It is pointed out that due to the poor management capacity and market adaptability, peasant household may rent some or all the contracted land in the form of subcontract if someone is willing to offer a higher rent. Having high comprehensive quality, large households may introduce new agricultural technology on time. They are good at operating efficient agriculture and scale agriculture and have strong market adaptability and business decision-making skill. Through establishing the cost-benefit function, cost benefit of rural land circulation subject is... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Cultivated land circulation; Economic reason; Interest subject; Cost benefit; China; Land Economics/Use. |
| Ano: 2009 |
URL: http://purl.umn.edu/58453 |
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| Mao, Ping; Song, Jiao; Pan, Qiang. |
| The thesis combs the existing legal provisions about rural housing land from the perspectives of use restriction, means restriction, subject restriction and mortgage prohibition, and finds out their defects, namely, weakening real right, confused knowledge about the integration of house property and land property, the loophole in Land Administration Law, the bans on the rural residents’ purchase of housing land and so on. Then the thesis expounds the harms of restricting the circulation of housing land, for example, it will result in underground transaction of housing lands; lead to untenanted lands and waste of resources; bring about financing difficulty for peasants; do harm to the interest of land owners (rural... |
| Tipo: Journal Article |
Palavras-chave: Circulation of housing lands; Legal lease; Protection of the peasant’s interests; China; Agribusiness. |
| Ano: 2010 |
URL: http://purl.umn.edu/96053 |
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| Maitah, Mansoor; der Ali, A.. |
| The subject of the relationship between state budget and trade balance is important as economic subject, not only at the level of developing countries, but also at of advanced ones, too. Such importance emerged clearly when 1980s witnessed in United States of America a deficit in both state budget and trade balance, which was called at that time as the twin or dual deficit. We can say that the analysis of relationship between state budget and trade balance states the extent of mutual effect between financial and trade policies of any economy, namely; any change in the outcome of either one may affect the other in the same degree. To put in other words, the instruments of financial policy... |
| Tipo: Journal Article |
Palavras-chave: State budget; Trade balance; Libya; Trade policy; Fiscal policy; Financial Economics; International Relations/Trade; GA; IN. |
| Ano: 2010 |
URL: http://purl.umn.edu/99221 |
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| Claassen, Roger; Breneman, Vincent E.; Bucholtz, Shawn; Cattaneo, Andrea; Johansson, Robert C.; Morehart, Mitchell J.. |
| Since 1985, U.S. agricultural producers have been required to practice soil conservation on highly erodible cropland and conserve wetlands as a condition of farm program eligibility. This report discusses the general characteristics of compliance incentives, evaluates their effectiveness in reducing erosion in the program's current form, and explores the potential for expanding the compliance approach to address nutrient runoff from crop production. While soil erosion has, in fact, been reduced on land subject to Conservation Compliance, erosion is also down on land not subject to Conservation Compliance, indicating the influence of other factors. Analysis to isolate the influence of... |
| Tipo: Report |
Palavras-chave: Conservation compliance; Sodbuster; Swampbuster; Conservation policy; Agri-environmental policy; Nutrient management; Buffer practices; Agricultural and Food Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/34033 |
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| Maciel,Thely A.; Juncá,Flora A.. |
| The capacity of tadpoles to reduce their metamorphosis time and body size in response to fluctuations in environmental variables of temporary ponds has been recorded in field and laboratory studies. The main alterations in this habitat are related to the decrease of the water level and increase in temperature. However, few studies tried to dissociate the effect of these two variables. The aim of the present study was to analyze simultaneously the effects of water volume reduction and temperature on the development and growth in tadpoles of Pleurodema diplolister (Peters, 1870) and Rhinella granulosa (Spix, 1824) - species that use temporary ponds for reproduction. The tadpoles of these two species were subject to four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bufonidae; Leiuperidae; Temporary ponds. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300005 |
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| Goodlass, G.; Halberg, N.; Verschuur, G.. |
| Input Output Accountingsystems (IOAs) can be used to identify farming practices which are not ‘environmentally neutral’ and thus unlikely to be sustainable in the long term. In an EU sponsored project, European countries were surveyed and over 50 farm level IOAs identified. The subjects covered by the IOAs included nutrients, pesticides, energy, soil/habitat, conservation, wastes (e.g.packagingandtyres)and other items such as veterinary products. Nearly half the IOAs covered more than one subject and nutrient budgets were the most commonly included(91% of the IOAs studied). Looking at the 30 single subject systems, most (26)were nutrients with only three pesticide and one energy based... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects. |
| Ano: 2003 |
URL: http://orgprints.org/15566/1/15566.pdf |
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| Jales, Mario; Josling, Timothy E.; Nassar, Andre Meloni; Tutwiler, M. Ann. |
| The negotiation of improved market access in agriculture is crucial to the success of the Doha Round. The depth of tariff cuts will be the main indication of the level of ambition of the agricultural talks and hence the Round as a whole. Agricultural tariffs remain five times higher than tariffs in industrial goods, and account for the bulk of the distortions in agricultural trade. Recent analysis indicates that 92 percent of the global gains from trade liberalization in agriculture result from removing market access barriers. The July Framework reaffirmed the objective of substantial improvements in market access. This is to be accomplished by a single approach, a tiered (or banded) formula for tariff cuts, with the higher tariff rates being |
| Tipo: Report |
Palavras-chave: International Relations/Trade. |
| Ano: 2005 |
URL: http://purl.umn.edu/14570 |
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| Brinkmann,W.L.F.; Santos,A. dos. |
| Abstract The hypothesis was tested, whether hydrogen — ion concentration and electric conductivity in river water samples of the Tertiary region of central Amazonia were subject to changes in time and due to nature of storage. Over a period of about two months only changes in pH and conductivity of Rio Negro water samples were found to be significant. The total deviation of both parameters in rain forest stream samples was considered negligible for at least a period of 30 days, independant of the nature of storage (laboratory or icebox). The latter results may be generalized more or less unconditionally for the entire Tertiary formations of Amazonia. |
| Ano: 1971 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671971000200057 |
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| Brinkmann,W.L.F.; Santos,A. dos. |
| Abstract The hypothesis was tested, whether hydrogen — ion concentration and electric conductivity in river water samples of the Tertiary region of central Amazonia were subject to changes in time and due to nature of storag. Over a period of about two months only changes in pH and conductivity of Rio Negro water samples were found to be significant. The total deviation of both parameters in rain forest stream samples v/as considered negligible for at least a period of 30 days, independant of the nature of storage (laboratory or icebox). The latter results may be generalized more or less unconditionally for the entire Tertiary formations of Amazonia. |
| Ano: 1971 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671971000100077 |
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| Pires,João Murça; Rodrigues,William A.. |
| Summary This paper is a contribution to elucidate an obscure problem which involves relationship of a group of plants containing the genera Anisophyllea, Polygonanthus, Combretocarpus and Poga. Genus Anisophyllea is native in both the Old and New Worlds; Polygonanthus is exclusively Amazonian; and Combretocarpus and Poga are confined to the Old World. It is a very interesting subject relating to the problems of evolution, speciation and distribution of plants, and supports the theories which endeavour to explain the centuries-old story that South America and Africa were, at one time, connected geographically. Taxonomic position of genera Anisophyllea and Polygonanthus is discussed. A new species of genus Anisophyllea is... |
| Ano: 1971 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671971000200007 |
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| Saravia,A. M.; Neptune,A. M. Louis. |
| The organic and inorganic forms of soil nitrogen and how they participate in the process of fixation, immobilization and mineralization of ammonium in soils were evaluated, after different periods of incubaton, utilizing two soils, a Lithic Haplustoll and a Typic Eutrorthox. The results obtained permit to suggest that : 1) The method for determination of the ammonium fixing capacity based on the extraction with 2N KC1, is considered to be subject to interferences of other soil fractions capable of retaining ammonium. 2) The increase in exchangeable ammonium content is related to the decrease in amino acids and hydrolyzable ammonium. 3) The immobilization and mineralization processes are still held under mil microbial. The... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1976 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761976000100058 |
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