نتایج جستجو برای: distance from agriculture

تعداد نتایج: 5743838  

2017
Svend Rasmussen Thomas Heckelei

This paper presents the results of an analysis that predicts the scale efficiency of individual farms and analyses the differences in scale efficiency over time and between farms. Representative farm account data for 1985–2006 are used, and the study applies stochastic frontier analysis using an input distance–function approach. The results show that pig farms have improved their input scale ef...

2010
Wen Lei Hong Zhang Lecai Cai

A network platform scheme targets the Zigong City’s characteristic agriculture is designed, which is according to the actuality of characteristic agriculture, the requirements of Comprehensive Information sharing ,and the status of city’s network topology. In the scheme, many solutions are given out, such as the network architecture, distributed data storage, remote diagnosing, expert decision-...

2008
Shahidur Rashid Ashok Gulati Ralph Cummings

2015
Saikou E. Sanyang

Agriculture has two ways to increase its output, expanding the land area under cultivation and improving the yields on cultivated land. If agricultural growth and performance taken to increase the farming incomes of rural families, then a third way can be added, i.e. shifting the product composition to higher value products. For decades, it has been commented that, globally the possibilities fo...

Land use change is certainly the most important factor that affects the conservation of natural ecosystems, resulting the conversion of natural lands such as forests and pastures into agricultural, industrial and urban areas. Despite numerous studies investigating landscape patterns due to land use change, the driving forces of landscape change has been less studied in Iran. In this study, Arti...

Journal: :ACM Transactions on Sensor Networks 2021

Precision agriculture has become a promising paradigm to transform modern agriculture. The recent revolution in big data and Internet-of-Things (IoT) provides unprecedented benefits including optimizing yield, minimizing environmental impact, reducing cost. However, the mass collection of farm IoT applications raises serious concerns about potential privacy leakage that may harm farmers’ welfar...

Journal: :Journal of Multimedia 2013
Jian Chen Deqin Xiao Dongmin Liu Xiaoqing Jiang

To solve the problem of the high cost in the GPRS communication and the limit transmission distance of WiFi, a transmission scheme for distant agriculture image acquisition was designed based on digital transmission radio in this paper. However, the majority of current digital transmission radio was designed for a small amount of data transmission. It could get a greater transmission distance w...

2005
STEPHANIE K. MOORE IAIN M. SUTHERS

The nitrogen and carbon stable isotope ratios (dN and dC) of the pygmy mussel, Xenostrobus securis, were determined for three estuaries with varying levels of catchment disturbance in northern New South Wales, Australia. The lower Manning River catchment supported the highest human population densities and 3% residential development with some livestock agriculture (41%); the Wallamba River catc...

Soil salinity is considered as one of the major challenges in coastal agriculture in Bangladesh yet geographical extent of soil salinity and nutrients status have received little or no attention. This study investigated the patterns of soil salinity, total nitrogen, phosphorous, potassium and sulfur between agricultural and fallow land along a 90 km distance from the coastline in Noakhali, Bang...

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