Fix LPJ output with new format of their crop types

src/ac/ed/lurg/output/LpjgOutputer.java

@@ -92,7 +92,7 @@ public class LpjgOutputer extends AbstractLandUseOutputer {
 		ItemValueExtractor fertExtractor = new ItemValueExtractor() {
 			@Override
 			public double extract(LandUseItem item, CropType cropType) {
-				return item.getFertiliserAmount(cropType);
+				return item.getFertiliserRate(cropType);
 			}
 		};