31 research outputs found
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A bibliography on post-harvest losses in cereals and pulses with particular reference to tropical and subtropical countries: Supplement to G110 (G197)
Bibliography G110 listed some 265 references which the author had to hand in July 1976. The list was not exhaustive and it was recognised that an updating volume would be needed in due course. This supplement includes a further 249 references but once more it cannot be claimed to be an exhaustive list. The supplement, like the original bibliography, encompasses the losses which occur throughout the whole post-harvest system but with special attention to storage. Certain references in relation to grain processing have been omitted since they are included in a companion volume G117 - Grain processing losses bibliography, and its supplement G168 (see references R42 and R43 in the Review section of this bibliography)
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Post harvest loss reduction programmes: A decade of activities - what consequences?
Major activities and projects undertaken in developing countries, during the past decade, in connection with postharvest grain loss assessment and reduction programmes are considered. Initiatives taken under the main multilateral and bilateral aid programmes are described. Examples of country loss assessment and reduction projects are given and from the results some general conclusions are drawn. The relevance of the described work and the overall level of activity is appraised in relation to current post-harvest problems. It is concluded that the prescribed methodology has worked adequately for the assessment of on-farm storage and processing losses particularly in relation to weight loss. There is a lack of proven guidelines for the commercial sector (procurement, marketing, storage and distribution). Such guidelines are needed and should embrace a wider approach which is more concerned with reducing insufficiencies in the total system
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Farm level storage losses in Eastern Nepal (G157)
A study of farm level storage losses was undertaken in the Eastern Hills of Nepal between May 1979 and June 1980. The project was a collaborative one involving the Gurkha Reintegration Scheme and the Kosi Hill Area Rural Development Programme, both of which are supported by the UK Overseas Development Administration. Technical support and advice to the project was provided by the Tropical Products Institute during three consultancy visits. The project began with a study of the minor wheat crop which provided the opportunity for field staff to gain essential experience and to develop a methodology for assessing storage losses. The main study of maize losses was undertaken between July 1979 and June 1980 and a limited study of losses occurring during the storage of paddy was conducted between November 1979 and June 1980. The published methodology for post-harvest loss assessment had to be adapted to the difficult field situation in the hills of Nepal and a simple method of estimating weight loss from observations of the percentage of damaged grains in a sample was used in the assessment of maize losses. The method, when compared with the preferred bulk density method of estimating weight losses, proved to be adequate. Modified bulk density methods were used to determine losses in wheat and paddy. The results of the survey demonstrated that farm level storage losses were lower (approximately 5%) than previously reported (10-30%) and in consequence tentative proposals for a programme to reduce losses by introducing new storage structures and pesticides, even if practical to implement, were shown to be unjustifiable
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Farm level storage losses in Eastern Nepal
A study of farm level storage losses in the Eastern Hills of Nepal, between May 1979 and June 1980, in a year affected by drought, showed that farm level storage losses (approximately 5%) were lower than previously reported (10-30%). In these circumstances, programmes to reduce losses by introducing new storage structures and pesticides, even if practicable, were shown to be unjustifiable but the need for further studies with particular regard to possible increases in production is indicated
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The prevention of farm level food grain storage losses in India: A social cost benefit analysis
A report of a study of farm level food grain losses carried out in Andhra Pradesh, India, from 1976 to 1978 is summarised. The object of the project was to provide a social cost benefit analysis of farm level storage improvements. The study concentrated on the storage of paddy (rice) as the staple crop. Eighteen villages provided approximately twenty sample stores each during the two year period of the project. Samples were subjected to laboratory analysis with emphasis on physical dry weight loss. The final estimate of loss was 4.26 per cent± 1.33 per cent. In the second year various improved storage practices were tested, including improvements to traditional stores, use of metal bins, and pesticides. Analysis of the data suggested a positive cost-benefit from these measures and support for the expansion of India's storage extension service, the Save Grain Campaign
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A critical review of the methodology for assessing farm-level grain losses after harvest (G191)
In 1976, the American Association of Cereal Chemists, with a grant from the US Agency for International Development to the League for International Food Education, began to assemble a methodology for assessing post-harvest grain losses. As a result of this initiative, a manual (Post-harvest Grain Loss Assessment Methods, by K. L. Harris and C. J. Lindblad) was published in 1978, detailing the techniques available for the measurement and interpretation of losses which occur after harvest at the farm level. A major difficulty experienced in compiling the methodology was that the authors necessarily drew heavily upon experiences gained from developed countries and limited specific examples from some developing countries. Nevertheless, the manual served usefully to provide guidelines to meet a wide variety of requirements. Experience from the many field studies of post-harvest losses conducted since 1978, has confirmed that the techniques are not universally applicable and that frequently some modification is required. This report examines the current state of knowledge on aspects of post-harvest loss assessment and offers guidance to those concerned with measuring losses at the farm level
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Post harvest losses of rice in the Dominican Republic
A national survey of post-harvest losses of rice was conducted in the Dominican Republic during the period March· November 1979. Quantitative and qualitative losses during harvesting, milling and storage of rice were studied and an attempt was made to assess their economic value. Recorded losses due to inefficient harvesting and threshing practices totalled 18.1 per cent. At the rice mills significant breakage of grains occurred when sun dried rice was milled. lt was estimated that millers using this drying method were losing, on average, 9.75 per cent of the value of the product because of the lower grade obtained. The milling process itself appeared to cause no significant losses of quantity or quality. An average weight loss of 0.35 per cent, recorded during storage at government warehouses, was attributable mainly to spillage and handling. No insect losses were observed. The loss during storage is small, but the total annual loss is estimated to be 680 metric tons
Human Resource Flexibility as a Mediating Variable Between High Performance Work Systems and Performance
Much of the human resource management literature has demonstrated the impact of high performance
work systems (HPWS) on organizational performance. A new generation of studies is
emerging in this literature that recommends the inclusion of mediating variables between HPWS
and organizational performance. The increasing rate of dynamism in competitive environments
suggests that measures of employee adaptability should be included as a mechanism that may
explain the relevance of HPWS to firm competitiveness. On a sample of 226 Spanish firms, the
study’s results confirm that HPWS influences performance through its impact on the firm’s
human resource (HR) flexibility
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Damage and loss caused by the Larger Grain Borer Prostephanus truncatus
An overview of information on damage caused by the larger grain borer is provided, including details of early studies examining commodities that might be attacked and the importance of LGB field infestations in relation to storage losses. In addition, examples are given from published information on the weight losses that can result from LGB infestation in maize and cassava, with case studies. Problems in applying conventional methods of loss assessment to commodities attacked by LGB are highlighted, to suggest the need to develop alternative techniques. Experiences in developing and applying novel approaches to loss assessment for LGB are repmted. Examples are also given to show how loss and damage estimates have been used to describe the impact of the pest on farmers, and on local, regional and international grain trading
A bibliography on post-harvest losses in cereals and pulses with particular reference to tropical and subtropical countries
6.00; Supplement to TDRI-G--110SIGLEAvailable from British Library Document Supply Centre- DSC:9055.9(TDRI-G--197) / BLDSC - British Library Document Supply CentreGBUnited Kingdo