نتایج جستجو برای: size of farm land

تعداد نتایج: 21206024  

A. Abass B. Alenkhe B. Bachwenkizi B. C. Okoye, G. Asumugha I Ralimanana N. Rabemanantsoa R. Ranaivoson

Labour productivity affects food security, but quantifying this relationship has been scarce with respect to empirical literature. The Central Madagascar dataset explores the influence of labour productivity and related variables on the food security status of cassava farmers. Drawing on both theory and empirical evidence, this paper argues that fundamental effects of links between labour produ...

2012
Michael J. Tildesley Sadie J. Ryan

The availability of epidemiological data in the early stages of an outbreak of an infectious disease is vital for modelers to make accurate predictions regarding the likely spread of disease and preferred intervention strategies. However, in some countries, the necessary demographic data are only available at an aggregate scale. We investigated the ability of models of livestock infectious dise...

2004
M. Rivington G. Bellocchi K. B. Matthews K. Buchan

Climate change impact studies on whole-farm systems require a holistic approach due to the complexities of biophysical processes, management and inter-relationships of land use within a single farm. This paper details the process of utilising a multiple-objective, strategic land use planning tool to conduct multi-factorial analyses on the impacts of climate change at the farm scale. Two example...

2017
Samiul Haque

Haque, Samiul. Ph.D., Purdue University, December 2014. US Commodity Support Payments: On Allocation of Resources and Fairness, Post 1996. Major Professor: Kenneth Foster This dissertation investigates the effect of US commodity support payment on agricultural producer decisions during the “decoupled” regime. Particular attention is paid to the national optimal output mix, input proportions, an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

پایان نامه :0 1371

the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...

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