Table 1 The description of the variables used in the study and their expected signs
Variable | Description | Definition and unit | Expected sign | References |
|---|---|---|---|---|
Dependent variable | Utilization of MSW compost in percentage | 1 if utilizing MSW compost 0, otherwise | Â | Â |
Independent variable | Â | Â | Â | Â |
Gender | Gender of household head | 1 if the household head (HH) is male, 0 if otherwise |  ±  | |
Age | Age of the household head (in years) | 1 if less than 18, 2 for18-36, and 3 for greater than 36 | - | |
Marital status | Marital status of household head | 1 if couple; 0 otherwise |  ±  | |
Education | Level of education of the household head | 0 for illiterate, 1 for primary, 2 for secondary and 3 for tertiary |  ±  | Mwangi and Kariuki 2015) |
Household size | Number of people in the household | Number (1 for less than 3, 2 for 3–6, 3 for greater than 6) |  ±  | Ullah et al. 2018) |
Extension services | Access to extension services | 1 if HH has access to extension services, 0 otherwise |  +  | |
Infrastructure | Access to infrastructure (roads, storage areas etc.) | 1 if HH has access, 0 otherwise |  +  | Assefa and Gezahegn 2009) |
Credit facilities | Access to credit facilities | 1 if has access, 0 otherwise |  +  | |
Market | Access to market for produce from farm | 1 if has market, 0 otherwise |  +  | Assefa and Gezahegn 2009) |
Farmer association | Membership of farmers’ association | 1 if HH is a member, 0 otherwise |  +  | |
Income | Annual income from farming in Uganda shillings | 1 if less than 200,000, 2 for 200,000–400,000 and 3 if greater than 400,000 |  +  | Huang and Karimanzira 2018) |
Non-farm activities | Engaged in non-farm activities | 1 if the household is engaged in non-farm activities, 0 otherwise |  +  | |
Farming experience | Farming experience (years) | 1 for less than 5, 2 for 5–10 and 3 if greater than 10 |  +  | |
Land ownership | Land ownership | 1 if land is available, 0 otherwise |  +  | Huang and Karimanzira 2018) |
Land size | Total size of the farmland (acres) | Acres (1 for less than 2, 2 for 2–4 and 3 for greater than 4 acres) |  +  | Huang and Karimanzira 2018) |
Land tenure | Household land tenure system | Land tenure (1 for customary, 2 for freehold, 3 for leasehold and 4 for Mailo) |  +  | Nambiro and Okoth 2013) |
Access to soil conditioner | Household access to soil conditioner | 1 if HH has access, 0 otherwise |  +  | Mwangi and Kariuki 2015) |
Experience of compost | Experience with compost fertilizer use in years | 1 if the HH applied compost, 0 otherwise |  +  | Mukai 2017) |
Cost at which farmer is willing to pay for compost | Cost at which farmer is willing to pay for use of compost as a soil conditioner | 1 if willing to contribute money, 0 otherwise |  +  | Mwangi and Kariuki 2015) |
Price of compost | Cost of compost per kilogram | 1 for less than 100, 2 if 100–200, 3 for 200–500 and 4 for ≥ 500 |  +  |