Open AccessPosted Content
Changes in Management Can Improve Returns from Cambodian Upland Crops
Robert J. Farquharson,Chea Sareth,Chapho Somrangchittra,Robert J. Martin,Bruce M Haigh,J. Fiona Scott,Ung Sopheap +6 more
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In this article, the authors evaluated new crop technologies which relate to soil and crop fertility management interacting with climatic factors, and evaluated the likely appeal of these technologies to Cambodian farmers in a return-on-investment context.Abstract:
Farming systems research for wet-season non-rice upland crops in Cambodia is being conducted with the overall aim of poverty reduction and food security for farmers in the Provinces of Battambang and Kampong Cham. Some of these cash crops exhibit low and variable incomes, especially when grown in the early wet season. Cambodian farmers may borrow money to buy crop inputs and often sell their produce to companies and traders from neighbouring countries, hence they are price takers. Some new crop technologies are evaluated which relate to soil and crop fertility management interacting with climatic factors. The DSSAT crop simulation model is used to predict outcomes from alternative management strategies. Bio-economic analyses are conducted to assess the likely appeal of these technologies to Cambodian farmers in a return-on-investment context. The results show that management to adjust the nitrogen fertility available to corn, the use of rhizobium in soybean, and a delay in planting early-wet-season corn may all show substantial financial benefits. Further research and an associated farmer demonstration program involving local extension officers are recommended.read more
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Journal ArticleDOI
Risk, uncertainty and learning in adoption of a crop innovation
TL;DR: In this paper, a new crop type, chickpeas, was adopted in Western Australia to gather empirical evidence for poor adoption of rural innovations, and two riskrelated factors with greatest impact on the adoption decision were risk aversion and relative riskiness of the innovation.
Characteristics of an Agricultural Innovation and Incentives for Adoption: Rhizobium in Cambodia
Robert J. Farquharson,Robert J. Martin,Bruce Mccorkell,J. Fiona Scott,Chan Phaloeun,Heng Sophors +5 more
TL;DR: In this article, the authors consider whether the processes of farm-level change and adoption of new technologies in Cambodia can be related to the adoptability characteristics of a technology in terms of relative advantage, compatibility, complexity, trialability and observability.
Whole farm modeling of precision agriculture technologies
TL;DR: In this paper, a dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the College of Agriculture at the University of Kentucky was described, which was later published in the journal "DissERTATION".
Posted ContentDOI
Upland crop technologies in Cambodia: economic evaluations and some adoption issues
TL;DR: In this article, a literature review identifies two important technology characteristics, "relative advantage" and "trialability" for successful adoption of new crop technologies, and proposes a participatory learning process in which economic and social issues are highlighted.
Crop Profit Groups and Farmer Participation in Research: Some Experiences from Cambodian Upland Regions
TL;DR: In this paper, the authors investigated and demonstrated new agricultural methods (or technologies) in a farming systems context, through developing a network of farm trials and demonstrations, and added activity in contextual economic and social assessment of new versus old farming methods and management with the objective of farmer adoption of improved methods and associated increases in farm family incomes.
References
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Journal ArticleDOI
The DSSAT cropping system model
James W. Jones,Gerrit Hoogenboom,Cheryl H. Porter,Kenneth J. Boote,William D. Batchelor,L. A. Hunt,Paul W. Wilkens,Upendra Singh,Arjan J. Gijsman,Joe T. Ritchie +9 more
TL;DR: The benefits of the new, re-designed DSSAT-CSM will provide considerable opportunities to its developers and others in the scientific community for greater cooperation in interdisciplinary research and in the application of knowledge to solve problems at field, farm, and higher levels.
Posted Content
Agricultural Decision Analysis
TL;DR: In this article, the authors present a procedure for decision analysis with preferences unknown, based on the revision of probabilities of the probability of a product's future performance and the utility of the utility.
Book ChapterDOI
Decision support system for agrotechnology transfer: DSSAT v3
James W. Jones,Gordon Y. Tsuji,Gerrit Hoogenboom,L. A. Hunt,Philip K. Thornton,Paul W. Wilkens,D. T. Imamura,Walter Bowen,Upendra Singh +8 more
TL;DR: The decision support system for agrotechnology transfer (DSSAT) as discussed by the authors is a microcomputer software package that contains crop-soil simulation models, data bases for weather, soil, and crops, and strategy evaluation programs integrated with a ‘shell’ program which is the main user interface.
BookDOI
Understanding options for agricultural production.
TL;DR: In this paper, the use of a Crop Simulation Model for Planning Wheat Irrigation in Zimbabwe J.T. Bowen, W.J. Boote, and W.W. Wilkens.
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