The Adoption of Agricultural Technology - Food Security Group

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nee beitwe4m Ea Iy d ptlo andThe farmers who adopt a technology first are not always the ones who find It mostuseful. The following example from Nepal shows that although larger farmerswere the first to adopt improved (high yielding) vaneties (HYVs) of rice, it is thesmaller farmers who have the highest current usage.Adoption of improved rice varieties (HYVs) by farm type, NepalAverage years Percent ofalnceflrstrice land sownFarm type use of HYV rice toHYVrioeLarge commercial 8.3 31Small commercial 7.6 60Part-time 5.1 72Subsistence 5.8 66Source: Ashby (1982).-26
80 1A study of mechanical wheat harvesting in Pakistan examined the advantages of the new harvestingmethod for farm owners in terms of time saved, ability to plant the following crop earlier, and yields.Although mechanical harvesting was not a practice recommended by the research service, it wasspreading, and researchers wished to study the implications. The following figures show substantialadvantages for farmers.Farmers' estimates of differences in supervision time, harvest duration, and yields for harvestingby hand and with a combine, Pakistan ah8t'Y88llng methodItem Un CombineSupervision (mean) h/day 10.4 2.7Harvest duration (mean) days 23.0 2.4Time available to preparefor next crop (mean) days 9.1 29.4Yield (grain recovery) (mean) Vacre 2.5 2.8Source: Smale (1987).a Holding Input levels, vanety, and harvested area constant.However, an accompanying study showed the Importance of the wheat harvest as a source of income forlandless laborers. The follOWing data show how a shift to mechanical harvesting could affect the Incomesof the poor.Percentage distribution of laborers by most important income source, rabi and kharifseasons,Pakistan, 1986-87Percent of I8borer8MostImportantIncome source Rsb18 KhBrltbWheat harvesting 82.7Rice harvesting 62.7Rice transplanting 2.7Farming 1.3 6.7Livestock rearing 2.7 4.0All agricultural income 86.7 76.0All non-agricultural income 13.3 24.0Total 100.0 100.0Source: Smale (1987).a Rabl IS the period from wheat sowing to wheat harvesting.b Kharif IS the period after wheat harvesting through nee harvesting.These contrasting sets of data are valuahle to res
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 and 32: -23The following graph shows the ac
Page 33: -25One valuable contribution to ass
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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