"block","variety","fertility","weeds","yield"
1,1,1,27,72.8
2,1,1,41,49.5
3,1,1,42,50.4
4,1,1,27,73.2
1,2,1,41,53.9
2,2,1,45,49.7
3,2,1,32,69.3
4,2,1,49,40.6
1,3,1,40,57.6
2,3,1,31,71.1
3,3,1,41,55.1
4,3,1,27,77
1,4,1,47,48.6
2,4,1,37,64.2
3,4,1,50,44.4
4,4,1,45,51.2
1,5,1,45,49.1
2,5,1,25,80.2
3,5,1,27,76.5
4,5,1,27,78.6
1,6,1,42,61.9
2,6,1,42,60.2
3,6,1,23,89.5
4,6,1,38,70.3
1,1,2,45,44.3
2,1,2,39,55.1
3,1,2,45,44.6
4,1,2,26,77.1
1,2,2,32,71.1
2,2,2,29,73.2
3,2,2,23,82.9
4,2,2,30,73.1
1,3,2,24,84.8
2,3,2,24,86.2
3,3,2,26,83.9
4,3,2,31,74.8
1,4,2,42,61.7
2,4,2,25,85.3
3,4,2,27,83
4,4,2,32,76.4
1,5,2,32,78.5
2,5,2,32,78.3
3,5,2,46,61.7
4,5,2,24,90.2
1,6,2,24,90.9
2,6,2,39,75.1
3,6,2,49,65.1
4,6,2,21,100.8
1,1,3,46,45.6
2,1,3,34,63
3,1,3,44,46.2
4,1,3,46,42.7
1,2,3,39,64
2,2,3,46,54.1
3,2,3,39,64.1
4,2,3,32,72.5
1,3,3,21,93.3
2,3,3,21,93.3
3,3,3,37,69
4,3,3,26,86
1,4,3,35,76.7
2,4,3,33,77.8
3,4,3,30,85.3
4,4,3,36,75.9
1,5,3,22,98.9
2,5,3,23,99
3,5,3,50,59.8
4,5,3,40,72.7
1,6,3,29,97.1
2,6,3,34,90.6
3,6,3,28,98.7
4,6,3,28,97.3
1,1,4,35,64.7
2,1,4,34,41.4
3,1,4,27,76.8
4,1,4,46,45.9
1,2,4,47,54.3
2,2,4,29,79.6
3,2,4,42,61.5
4,2,4,23,89.5
1,3,4,20,98.7
2,3,4,20,98.7
3,3,4,35,79
4,3,4,41,71.8
1,4,4,26,96.8
2,4,4,33,85.6
3,4,4,25,97.1
4,4,4,35,82.6
1,5,4,30,94
2,5,4,46,72.8
3,5,4,28,98.4
4,5,4,50,70
1,6,4,48,82.6
2,6,4,27,108.1
3,6,4,32,101.4
4,6,4,33,99.9