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The Future of Smallholder Farming in Eastern Africa - Uganda ...

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utilization for the household. However, extraction <strong>of</strong> fuel products, build<strong>in</strong>g products, and<br />

livestock graz<strong>in</strong>g were shown to have non-l<strong>in</strong>ear relationships with wetland diversity. <strong>The</strong>ir<br />

respective squared variables all have significant negative coefficients, which show that at a<br />

certa<strong>in</strong> higher level <strong>of</strong> <strong>in</strong>volvement, extraction <strong>of</strong> fuel and build<strong>in</strong>g/craft products or livestock<br />

graz<strong>in</strong>g becomes the major household activity to the exclusion <strong>of</strong> others, reduc<strong>in</strong>g the diversity <strong>of</strong><br />

wetland uses by the household.<br />

For the Food Security Index, the analysis shows that value <strong>of</strong> fish products, log <strong>of</strong> farm size, and<br />

log <strong>of</strong> non-farm <strong>in</strong>come were all positive and significant at the 1% level while presence <strong>of</strong><br />

irrigation, and value <strong>of</strong> gifts were positive and significant at the 5% level. <strong>The</strong> strongest variable<br />

by far, however, proved to be that <strong>of</strong> “vulnerability” which displays a strongly negative<br />

coefficient. <strong>The</strong> vulnerability <strong>of</strong> a household was determ<strong>in</strong>ed by the absence <strong>of</strong> adult family<br />

members as potential <strong>in</strong>come earners.<br />

5.2.3 Determ<strong>in</strong>ants <strong>of</strong> Productivity<br />

<strong>The</strong> detailed results <strong>of</strong> the generalized least squares analysis <strong>of</strong> the determ<strong>in</strong>ants <strong>of</strong> productivity<br />

per acre for each <strong>of</strong> the major crops <strong>in</strong> the study area is presented <strong>in</strong> the tables <strong>in</strong> Appendix 5.<br />

Eight equations were estimated – one for each <strong>of</strong> the major crops produced <strong>in</strong> the study area.<br />

<strong>The</strong> variables used were the same for all <strong>of</strong> the equations. <strong>The</strong> table below summarizes the<br />

significance <strong>of</strong> the various coefficients for each variable <strong>in</strong> each <strong>of</strong> these eight equations.<br />

Table 5. Determ<strong>in</strong>ants <strong>of</strong> Productivity by<br />

Crop<br />

Note: some variables dropped due to multicoll<strong>in</strong>earity where there were very few<br />

observations.<br />

Cassava Sw. Potato Groundnuts Millet Sorghum Maize Beans Simsim<br />

sign signif sign signif sign signif sign signif sign signif sign Signif sign signif sign signif<br />

1st season + NS - *** + *** - ** + *** Dropped + NS + ***<br />

2nd season - *** - *** dropped - *** + *** - *** dropped dropped<br />

Dry season - NS - *** dropped - NS dropped dropped dropped dropped<br />

irrigated + *** + *** dropped dropped + NS + *** + NS dropped<br />

logacres - *** - *** - *** - *** - *** - NS - *** - NS<br />

Family<br />

labour + *** + ** - NS - *** - *** + *** - *** + ***<br />

Labour2 - *** - ** + ** + *** + *** - *** + *** - **<br />

Investment + *** + *** + NS + *** + *** + ** + *** + ***<br />

Apac + *** - *** dropped dropped dropped - *** - * + ***<br />

Kamuli - *** - ** dropped - *** dropped - *** dropped dropped<br />

Kayunga - *** - *** dropped - *** dropped - *** dropped dropped<br />

Kumi + *** - *** + ** - *** + *** + *** + NS dropped<br />

Lira + NS - *** + NS - *** + *** - * - ** + NS<br />

Mas<strong>in</strong>di + *** + NS + NS dropped + *** - *** - NS dropped<br />

Nakasongol<br />

a - NS + NS + *** - *** dropped - *** - *** dropped<br />

Pallisa - *** - *** - NS - NS - NS - *** - ** dropped<br />

Soroti + *** - ** + NS - *** + NS - *** - NS - NS<br />

_constant + *** + *** + *** + *** + dropped + *** + *** + ***<br />

Kaberamaido is the basis for comparison for the district dummies<br />

Perrennial or no specified season is the basis for comparison for the seasonal dummies<br />

<strong>The</strong> results <strong>of</strong> the productivity analysis show a considerable consistency. All <strong>of</strong> the equations<br />

were well def<strong>in</strong>ed. Location, seasonality, <strong>in</strong>vestment <strong>in</strong> agricultural production <strong>in</strong>puts and use <strong>of</strong><br />

irrigation were all significant determ<strong>in</strong>ants <strong>of</strong> productivity. Interest<strong>in</strong>gly, the larger the size <strong>of</strong><br />

the plot, the lower the productivity when other factors like District, season and <strong>in</strong>vestment <strong>in</strong>

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