Vincent de Leijster

163 Appendices � � �� � � � � � 0 1 2 3 CT NT GM CM Treatment Relative almond production compared to CT Figure A4-2. Figure S2. Relative almond tree production relative to average of the control group (conventional tillage; CT). Blue indicates conventional tillage (CT), red indicates no tillage (NT), yellow indicates green manure (GM), brown indicates compost (CM). This demonstrates that relative effects of treatments differed between farms. Except for some outliers the majority of NT resulted in lower production levels as compared to CT. For GM, however, they effect of treatment on yield differed between farms. In some locations GM resulted in higher yield than CT, but on average the yield was lower (Figure. 7). In some farms CM resulted in lower production than CT, but in the majority of the farms and on average CM was related to higher production than CT. Table A4-3. Almond production per agricultural treatment Production kg tree-1 Production relative to CT Mean ± SD Mean ± SD CT 1.12 ± 0.22 1.00 ± 0.2 NT 0.67 ± 0.11 0.84 ± 0.28 GM 0.77 ± 0.22 0.89 ± 0.17 CM 1.47 ± 0.31 1.14 ± 0.21 Table A4-4. Relative almond production over the project lifetime (0-30 years). Initial unproductive phase between year 0 and 4, increasing production capacity phase between year 5 and 8, optimal productive phase between year 9 and 25, and decreasing production capacity phase between year 26 and 30. Year 0-4 5 6 7 8 9-25 26 27 28 29 30 Relative production 0 0.4 0.6 0.8 0.9 1 0.9 0.8 0.7 0.6 0.5