Policies and institutions to enhance the impact of irrigation development in mixed crop-livestock systemsLength: pp.168-184

Irrigation managementInstitutional developmentPolicyCrop productionLivestockWater demandIrrigation waterSmall scale systemsInvestmentFarmer managed irrigation systemsPovertyFarmersGenderWater users’ associations

STRUCTURAL CHANGES IN U.S. AGRICULTURE: IMPLICATIONS FOR SMALL FARMS

A descriptive analysis and a survey of literature were used in this assessment of the transformation of the structure of production agriculture. The changes in production agriculture have important implications for resource use, population distribution in rural communities, and the survival of small farms. The shifting structural change in production agriculture as a response to economic and technological adjustments is not a temporary phenomenon. The economic and natural base of agriculture will change toward greater capital intensity and concentration of ownership, and will raise public policy questions in relation to the survival of a large farm population.Small farms, Structural changes, Production agriculture, Farm Management,

Stable Food Crops Turning Into Commercial Crops: Case Studies Of Teff, Wheat And Rice In Ethiopia

Teff, wheat and rice are becoming important market oriented crops in Ethiopia. This study aims at measuring the level of market orientation of households in these crops, identifying the important market places and market outlets used by producers, and analyzing the determinants of market orientation in these crops. Results are based on analysis of data collected from community (peasant association) and household surveys in three districts in three regional states of the country in 2005. Analysis of descriptive information and econometric analysis are used. About 65 - 77% of households produce these market oriented commodities in the study areas, on about 27 – 44% of the total cultivated land. About 47 – 60% of the produce of these market oriented commodities is sold. The important market places for producers of these commodities are the district town markets and markets located at the peasant associations within the district. Wholesalers and retailers are the most important buyers from producers. Average distance to market places for these commodities is about two walking hours. Econometric analyses show that market orientation of households is affected by a host of factors related to household demographics, household endowments of human and physical capital, access to institutional services, and village level factors. Size of cultivable land and traction power, and household labor supply are important factors that induce households to be market oriented. While household size tends to favor food security objectives, number of dependents is associated with market orientation. Population control measures could contribute to market orientation through their effect of reducing household subsistence requirements. Our results also imply that interventions to improvements markets operations in order to benefit producers need to consider the operation of district level markets. Improving the operations of factor markets of land, traction and farm labor could contribute to enhancing market orientation of farm households. Special attention is needed to female headed households in the process of commercial transformation of subsistence agriculture. The development and institutionalization of marketing extension warrants due consideration

A Farmer-based fruit seedling supply system in Dale Pilot Learning Woreda (PLW): experiences from IPMS

Dale Woreda is well known for its avocado (Persia americana) and to a lesser extent mango (Mangifera indica) production. These fruit trees are planted along with coffee (Coffee arabica), enset (Enset ventricosum) and other crops. They are important sources of income and food, playing a considerable role in the livelihood of thousands of smallholder farmers of Dale. However, the varieties found in the area have large canopies that reduce land availability for other crops. They are also tall (10-15 m) thus harvesting becomes a challenge, particularly for women. Market prices for these varieties are low and during collection, there is considerable fruit loss when they fall, causing cracks and bruises and hence their rejection. The trees also take 7- 10 years to bear fruit and farmers mention that the land can be used more productively and therefore want to replace fruit trees with other more profitable crops. The diagnostic survey carried out by Improving Productivity and Marketing Success (IPMS) of Ethiopian farmers’ project identified some of the above production constraints as the major area of intervention. Further study was conducted by the International Centre for Research on Agro Forestry (ICRAF) which confirmed the above problems and suggested introduction of improved variety through grafting as one of the best solution to improve the quality of seed, reduce size and height as well as improve productivity and marketability of these varieties. Taking the experience of Dale for coffee seedling production where farmer’s nurseries have taken over 95% of seedling production, the Dale partners decided to use farmers’ nurseries as the base to start production of grafted seedlings. Using participatory extension methods with the help of various partners, the number of private nursery operators increased from the initial six (3 females) to 20 (7 female) in 2009. The number of seedlings produced has now reached 12,000 annually and this can be easily expanded since scions can now be obtained from mother trees established earlier in each of the nursery sites. Currently, seedlings are sold at around Birr 15/seedling to neighboring farmers, some on credit provided by the nursery operators. Linkages with the Productive Safety Net program are made to facilitate the scaling out of the sale of seedlings to emerging commercial farmers. Nursery operators earned between Birr 4,000–7,000 per year from these operations. Further skills development can still be made to improve survival rates of grafted seedlings. Attention will also need to be paid to the marketing of these improved varieties as well as the development of a responsive support system providing fresh knowledge, building capacity and new technologies

Market-oriented beekeeping development to improve smallholder income: Results of development experiences in Atsbi-Womberta District, northern Ethiopia

Beekeeping is an important income-generating activity in the Atsbi-Womberta district of Tigray. Beekeeping can also be easily integrated into the on-going natural resources conservation developments in the district. However, beekeeping has traditionally been considered as a supplementary enterprise and its potential as a source of smallholder income has never been fully utilized. The Improving Productivity and Market Success (IPMS) of Ethiopian Farmers Project, in collaboration with the district Office of Agriculture and Rural Development (OoARD), the regional Bureau of ARD and other partners have introduced, tested and promoted improved beekeeping development practices based on the value chains framework. This paper presents results of this experience. The core of the experience is the transformation of a largely traditional system towards a more knowledge based and market-oriented beekeeping. Major interventions include introduction, testing and promotion of learning platforms on improved use of hive equipment, improved apiary and colony management, bee forages, harvesting and postharvest handling practices, and facilitation of access to market information and linkages. Qualitative and quantitative studies were conducted to assess developmental changes made due to the interventions. Results show that the honey productivity of adopters increased by about threefold (32 kg honey/hive per year) compared to the non-adopters (10 kg honey/hive per year) in 2008 despite the variation in rainfall distribution and amount. Interestingly, the honey productivity of adopters increased by 52% in 2008 (32 kg honey/hive per year) compared to those adopters in 2004 (21 kg honey/hive per year). Market-oriented improved beekeeping adopters had a threefold higher income from the sale of honey (Ethiopian birr, ETB1 1820/household per year) than non-adopters (ETB 614/household per year). Moreover, the gross annual income of smallholder beekeepers in the district increased from about ETB 2.7 million in 2004 to ETB 19.5 million in 2008. Similarly, the number of honeybee colonies has increased by about fourfold and that of beneficiaries increased by about threefold. About 36% of the beekeepers adopted improved beekeeping management which contributed to about 75% of the district gross annual income of smallholder beekeepers in 2008. The basis of transformation towards market-oriented beekeeping has been capacity building of beekeepers to acquire, share and use improved skills. Results show that marketoriented improved beekeeping appears to be a more resilient income generating business under the uncertain and variable rainfall conditions

Effects of interpregnancy interval on pregnancy complications: protocol for systematic review and meta-analysis

Introduction: Interpregnancy interval (IPI) is the length of time between a birth and conception of the next pregnancy. Evidence suggests that both short and long IPIs are at increased risk of adverse pregnancy and perinatal outcomes. Relatively less attention has been directed towards investigating the effect of IPI on pregnancy complications, and the studies that have been conducted have shown mixed results. This systematic review will aim to provide an update to the most recent available evidence on the effect of IPI on pregnancy complications. Method and Analysis: We will search electronic databases such as Ovid/MEDLINE, EMBASE, CINAHL, Scopus, Web of Science and PubMed to identify peer-reviewed articles on the effects of IPI on pregnancy complications. We will include articles published from start of indexing until 12 February 2018 without any restriction to geographic setting. We will limit the search to literature published in English language and human subjects. Two independent reviewers will screen titles and abstracts and select full-text articles that meet the eligibility criteria. The Newcastle-Ottawa tool will be used to assess quality of observational studies. Where data permit, meta-analyses will be performed for individual pregnancy complications. A subgroup analyses by country categories (high-income vs low and middle-income countries) based on World Bank income group will be performed. Where meta-analysis is not possible, we will provide a description of data without further attempt to quantitatively pool results. Ethics and Dissemination: Formal ethical approval is not required as primary data will not be collected. The results will be published in peer-reviewed journals and presented at national and international conferences. Prospero Registration Number: CRD42018088578

Characterizing the strength of wood truss joints

Probability density functions (normal, lognormal, and three-parameter Weibull) were used to characterize strength data for three different types of metal-plate-connected wood truss joints (web at the bottom chord, tension splice, and heel). Modulus of elasticity (MOE) of the lumber used to fabricate the joints was also characterized. A probability-plot technique, in conjunction with Kolmogorov-Smirnov and chi-square statistics, was used to determine which distribution best fit the data. Lumber MOE was best described by a lognormal distribution. No single distributional form fit the strength data for all three joint types with equal accuracy. Lumber MOE and joint strength were unrelated. Strength data for the web at the bottom chord and heel joints were best described by normal distributions; however, none of the distributions considered fit the data for the tension splice joints. The probability-plot technique provided a better visual inspection of fit than did a density function superimposed over a histogram. Fitted distributions are easy to work with and can be used in reliability analyses to simulate strength values of joints. The results presented here are for particular joint types and plates and should not be extrapolated to other truss joints