Cultivating Diversity: Field Scattering as Agricultural Risk Management in Cuyo Cuyo, Department of Puno, Peru

Table 9.7
Reduction in variance for potato fields of Ura Ayllu study families

(page 331)

Family A B C D E F G H I J Average Reduction Count
Total-cv* 79.3 65.3 70.2 116.9 80.3 69.8 63.5 145.0 70.2 81.6 84.2  
n = 2 cv 57.7% 61.2% 61.2% 61.2% 61.2% 59.8% 64.0% 65.8% 54.8% 61.2% 60.8% 10
n = 3 cv 38.5% 44.3% 44.3% 44.3% 44.3% 41.9% 48.5% 51.2% 33.3% 44.3% 43.4% 10
n = 4 cv 25.0% 33.2% 33.2% 33.2% 33.2% 29.9% 38.8% 42.3%   33.2% 33.6% 9
n = 5 cv   24.5% 24.5% 24.5% 24.5% 20.0% 31.7% 35.9%   24.5% 26.5% 8
n = 6 cv   16.7% 16.7% 16.7% 16.7%   25.9% 30.9%   16.7% 20.6% 7
n = 7 cv             20.8% 26.7%     23.8% 2
n = 8 cv             16.0% 23.1%     19.6% 2
n = 9 cv             11.1% 19.9%     15.5% 2
n = 10 cv               16.9%     16.9% 1
n = 11 cv               14.0%     14.0% 1
n = 12 cv               11.0%     11.0% 1
n = 13 cv               7.7%     7.7% 1
n = 14 cv                        

* Numbers in this row are the actual coefficients of variation calculated. Values in subsequent rows are the percentage reduction relative to this number.