The Adoption of Agricultural Technology - Food Security Group

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A survey in Peru that examined the adoption of a new bean variety asked farmershow much of their farms they planted to the new variety in the first year that theyused it and in subsequent years. The results show a gradual increase in the use ofthe variety as farmers gain confidence.Use of bean variety Gloriabamba. by province, PeruFirst season 0.11 0.28 0.13Second season 0.24 0.40 0.40Third season 0.43 0.57 0.50Fourth season 0.43 1.06 0.83Source: Ruiz de Londono and Janssen (1990).-24
-25One valuable contribution to assessing adoption patterns is to compare theproportion of farmers who have ever USE'd a technology with the proportioncurrently using it. If the latter is much lower than the former, there is an indicationthat although farmers have tried the technology they have encountered difficultieswith it.The following example comes from Nepal and shows that different types offarmers have very different experiences with respect to improved maize varieties.The majority of large commercial farmers have tried these varieties and continueto use them. Almost half of small commercial farmers have also tried thesevarieties, but only a small proportion continue to use them. Some part-time andsubsistence farmers have also tried the varieties, but almost none currently usethem.Current and past use of improved maize varieties by type of farm, NepalLarge commercial 54 60Small commercial 13 45Part time 4 21Subsistence 3 26Source: Ashby (1982).
Page 9 and 10: I Chapter 1AdoptionStudiesWhy Study
Page 11 and 12: emphasis on participatory research
Page 13 and 14: of adoption study must be done with
Page 15 and 16: -7some idea of the degree to which
Page 17 and 18: 80 2. tudl Used to Assess Different
Page 19 and 20: Another issue in measuring adoption
Page 21 and 22: Yt and we can estimate K (the maxim
Page 23 and 24: Measuring ImpactEarlier sections di
Page 25 and 26: -17The Role of Adoption Studies in
Page 27 and 28: Bo 3. Variable and Criteria __'_."C
Page 29 and 30: Farmers in Bumbogo, Rwanda grow bea
Page 31: -23The following graph shows the ac
Page 35 and 36: 80 1A study of mechanical wheat har
Page 37 and 38: Chapter 3UnderstandingAdoptionThe F
Page 39 and 40: small test of farmers' skills (for
Page 41 and 42: Wealth. Wealthier farmers may be th
Page 43 and 44: degree of adoption may depend on th
Page 45 and 46: conditions of the preceding or foll
Page 47 and 48: equired inputs, then the technology
Page 49 and 50: help in analyzing the degree to whi
Page 51 and 52: Checklist (cont'd.).....FactorBiolo
Page 53 and 54: Box 14. Gender Analysis and Adoptio
Page 55 and 56: Box 16. Labor Availability and Adop
Page 57 and 58: 80 1 te Trade-offsFarmers must ofte
Page 59 and 60: -51The adoption of technology is in
Page 61 and 62: -53Box 22. Source of Purchased Inpu
Page 63 and 64: Box 24. Knowledge of Recommendation
Page 65 and 66: services, or markets, it is importa
Page 67 and 68: - SamplingforcomparisonsTn many ins
Page 69 and 70: chosen for the survey will determin
Page 71 and 72: B. Measurements for input use may b
Page 73 and 74: 2. Where did you acquire the seed?1
Page 75 and 76: Cha ter 5MethodsforAnalyzingAdoptio
Page 77 and 78: One of the simplest and most useful
Page 79 and 80: For instance, a survey may show tha
Page 81 and 82: -73Revised[Oxen ownership (A) --.t~
Page 83 and 84:
RevisedThe association is tested co
Page 85 and 86:
The following example is a simple l
Page 87 and 88:
where b o is the constant, b}' b 2,
Page 89 and 90:
variables. And a high significance
Page 91 and 92:
1Decision trees are a method of rep
Page 93 and 94:
ReferencesAcharya, M., and L. Benne
Page 95 and 96:
Jha, D., B. Hojjati, and 5. Vosti.
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The Adoption of Agricultural Technology - Food Security Group

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