Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 11
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A Strategic Approach to the Implementation of Precision Agriculture Principles in Cash Crop Farming AgEcon
Maine, Ntsikane; Nell, Wilhelm T..
Precision agriculture is one of the important agricultural technologies that can assist farmers and managers in promoting long-term success. Precision agriculture can help farm managers increase their management capacity, which is of utmost importance in the highly competitive modern agriculture. Increased yields and/or efficient input use can also be achieved with precision agriculture. Precision agriculture also involve a large capital outlay and requires skills in interpreting the masses of generated data. Modern farmers have to engage in pro-active thinking with regard to suitable agricultural systems that can enhance sustainable success of their farming businesses. Farm managers who are contemplating on getting involved in precision agriculture need...
Tipo: Conference Paper or Presentation Palavras-chave: Precision agriculture; Strategic approach; Farming; Farming success; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2005 URL: http://purl.umn.edu/24259
Imagem não selecionada

Imprime registro no formato completo
ADOPTION OF VETERINARY SURGEON SERVICES BY SHEEP AND GOAT FARMERS IN QWAQWA AgEcon
Nell, Wilhelm T.; van Schalkwyk, Herman D.; Sanders, John H.; Schwalbach, L.; Beste, C.J..
A number of technology transfer (diffusion) programmes involving amongst others veterinary surgeon services subsidised by the government, were launched in the former homelands of South Africa between 1980 and 1993. Many of these programmes were discontinued after the general election of 1994. In order to evaluate the adoption of technology in Qwaqwa, a former Sotho speaking homeland, two Logit models were fit using the conventional definition of an adopter and an adapted definition, which included potential adopters with the adopters. Where the conventional definition of adoption was estimated, livestock income per LSU, ram technology, roads and suppliers of livestock inputs are significant variables contributing to adoption. The results of the adapted...
Tipo: Journal Article Palavras-chave: Livestock Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/54887
Imagem não selecionada

Imprime registro no formato completo
Adoption of Veterinary Technologies Amongst Sheep and Goat Farmers in Qwawqa, South Africa AgEcon
Nell, Wilhelm T.; Schwalbach, L..
Technological breakthroughs in agriculture after the Second World War mainly concentrated on crop production (wheat, rice, and later maize). In the livestock production sector, besides the substantial improvements in the poultry and dairy production systems, the development of the other livestock technologies was neglected, due to lower returns when compared to those on crop technology. Nevertheless, the usage of livestock veterinary technologies such as veterinary services and medicines remains important for livestock production as animal diseases are a major cause of poor productivity and high mortality rates, which are major constraints to improve food security. The reasons for poor adoption of livestock veterinary technologies amongst livestock farmers...
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management; Livestock Production/Industries.
Ano: 2002 URL: http://purl.umn.edu/6974
Imagem não selecionada

Imprime registro no formato completo
Best fit model selection for spatial differences (regression) in the profitability analysis of precision phosphate (P) application to winter cereals in Precision Agriculture (PA) AgEcon
Hough, Ella Christina; Nell, Wilhelm T.; Maine, Ntsikane; Groenewald, Jan A.; van der Rijst, M..
Phosphates (P) are an important nutrient required by every living plant and animal cell, and deficiencies in soils could cause limited crop production, thereby reducing profitability. Phosphates are also a primary nutrient essential for root development and crop production, and are needed in the tissues of a plant where cells rapidly divide and enlarge. Precision agriculture (PA) could assist the farmer in applying the correct amount of P to the part of the field where it is required most. Variable rate technology (VRT) is a potential tool that can help with the development of strategies for phosphate fertilizer management. On-field trials were conducted on a commercial farm in the Western Cape Province; As many as five soil types occur on each field...
Tipo: Journal Article Palavras-chave: Precision agriculture; Variable-rate phosphate application; Single rate phosphate application; Profitability; Spatial differences; Restricted maximum-likelihood model (RELM); Spatial regression; Best fit model selection; South Africa; Crop Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/96642
Imagem não selecionada

Imprime registro no formato completo
Economic Analysis of Phosphorus Applications under Variable and Single-Rate Applications in the Bothaville District AgEcon
Maine, Ntsikane; Nell, Wilhelm T.; Lowenberg-DeBoer, James; Alemu, Zerihun Gudeta.
Variable-rate (VR) application of inputs in South African cash crop production is mainly concerned with fertilizer and lime, and this indicates the importance of these inputs in cash crop production. However, the profitability of VR application of inputs has not yet been investigated under South African conditions. This paper studies the maize yield response to variable-rate application of phosphorus (P) and the profitability thereof in South Africa, on the basis of data collected on a 104-hectare experimental field on a farm in the Bothaville district. The strip-plot design of 180 strips was used for this on-farm research experiment. This design involved treatments that run in the same direction across the field as planting and harvesting. The objective...
Tipo: Journal Article Palavras-chave: Precision agriculture; Precision farming; Site-specific phosphorus management; Variable-rate application; Fertilizer; Yield response; South Africa; Crop Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/7047
Imagem não selecionada

Imprime registro no formato completo
Maize prices in South Africa: Can the producer increase his revenue by marketing grain through cattle? AgEcon
Mare, Frikkie A.; Nell, Wilhelm T.; Willemse, B.J..
Since the decline in the price of maize from the beginning of 2010, meat has become the new buzzword under maize producers as they are desperately looking for alternatives to increase the value of their crops. It seems as if the price of maize may stay low at levels equal to export parity prices for the next year or two due to very large yields and an increasing level of ending stocks each year. On the other hand, there is the meat sector which is doing extremely well and had even shown positive growth during the worldwide financial crisis. A substantial decrease in the price of beef therefore seems unlikely and makes it a very attractive alternative market for maize. The question, however, is whether the value of maize can be increased by marketing it...
Tipo: Journal Article Palavras-chave: Livestock Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/96646
Imagem não selecionada

Imprime registro no formato completo
Possible Predictors Determining the Adoption of Potatoes (Solanum Tuberosum) into a Wheat- (Triticum Aestivum) Based Cropping System in Mokhotlong, Lesotho AgEcon
Serage, K.L.; Nell, Wilhelm T.; Makula, M.; Tolmay, J.P.C..
The main objective of the study was to identify possible predictors of adoption of potatoes into a wheat-based cropping system. In this study nine explanatory variables were tested against two dependent variables (p= 0,15). The explanatory variables were gender, age, training, land ownership, soil type, household size, number of household members below the age of six (< 6) years, number of household members between 6 and 18 years of age and farming experience. The dependent variables tested were: crops adopted by farmers and household knowledge on soil fertility. Of all the nine explanatory variables tested against crops adopted, only two categorical variables, namely training (p=0,11) and land ownership (p=0,09), and one continuous variable, farming...
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management.
Ano: 2002 URL: http://purl.umn.edu/6998
Imagem não selecionada

Imprime registro no formato completo
Precision Irrigation in South Africa AgEcon
Dennis, H.J.; Nell, Wilhelm T..
The Republic of South Africa covers an area of 122 million hectare of which 18 million hectare is potential land for cultivation. Eight percent of the potential arable land are under irrigation, which accounts for nearly half of the water requirement in South Africa. With a population of 42 million and an estimated annual population growth of 1,7%, urbanisation and industrialisation will increase the pressure on the availability of water resources and the allocation thereof in South Africa. The purpose of the National Water Act, Act 36 of 1998, is to ensure that the nation's water resources are protected, developed, conserved, managed and controlled. Agricultural production under irrigation in South Africa retrieves water from water resources such as...
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management; Land Economics/Use.
Ano: 2002 URL: http://purl.umn.edu/7023
Imagem não selecionada

Imprime registro no formato completo
Strategic Approach to Farming Success AgEcon
Nell, Wilhelm T.; Napier, Robert John.
This paper is an abstract of a new book for farmers launched on April 8, 2005 (Nell & Napier, 2005). The two authors, Wim Nell of South Africa and Rob Napier of Australia, have respectively 28 and 37 years national and international experience in strategic agricultural management. The book is written for farmers across the world and is dedicated to all farmers. The book takes the reader on a strategic journey to farming success, which consists of 11 stages. At the end of each stage the reader has the opportunity to answer some questions that will guide the process of compiling a strategic plan for a specific farming business. The book opens new horizons for the modern farmer to manage the farming business more successfully.
Tipo: Conference Paper or Presentation Palavras-chave: Farming success; Strategic approach; Strategic farming; Scenarios; Holistic management.; Farm Management.
Ano: 2005 URL: http://purl.umn.edu/24237
Imagem não selecionada

Imprime registro no formato completo
Strategies for Successfully Settling Farmers in South Africa AgEcon
Mokhatla, P.Z.; Nell, Wilhelm T..
The South African government initiated the land reform program in 1994, which is facilitated by the Department of Land Affairs. The land reform programme has three divisions, namely redistribution, restitution and land tenure. The main objectives of land reform since its inception are poverty alleviation, justice, food security, rural transformation, economic growth and to readdress the landless, the poor, women, the disposed and the previously disadvantaged to acquire land. The question can be asked: Has land reform achieved its goals in the past 10 years since its inception? This paper outlines the concept of a strategic approach as described by Nell and. Napier (2005) to help successfully establish farmers in South Africa and also other strategies that...
Tipo: Conference Paper or Presentation Palavras-chave: Land reform; Strategic approach; Emerging farmers; Agricultural and Food Policy; International Development; Land Economics/Use.
Ano: 2005 URL: http://purl.umn.edu/24261
Imagem não selecionada

Imprime registro no formato completo
The Financial Aspect of Growing Organic Wine Grapes in the Vredendal District AgEcon
Hough, Ella Christina; Nell, Wilhelm T..
Confusion still exists regarding the meaning of the organic production system. It can be defined as a holistic production system which enhances the agricultural eco-system by prohibiting the use of synthetic production mediums. It focuses on the improvement of soil fertility and the protection of the environment. The environmental advantages by themselves are not reason enough for farmers to adopt organic practices. The financial implication of organic agriculture in comparison with conventional practices is very important. It does not matter how ecologically advantegeous organic farming is, if a farming system does not show sufficient profit for the farmer to stay in business in a free market, an organic system will not be adopted. Ecological agriculture...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/24306
Registros recuperados: 11
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional