diff --git a/FS25_ADSmartPickup/adChainModel.lua b/FS25_ADSmartPickup/adChainModel.lua
index 0342000..7948dc0 100644
--- a/FS25_ADSmartPickup/adChainModel.lua
+++ b/FS25_ADSmartPickup/adChainModel.lua
@@ -50,13 +50,17 @@ end
 function ADChainModel.build(recipes, husbandry, crops)
     local chain = {roots = {}, demand = {}, fieldDemand = {}, needRecipes = {}, problems = {}}
     local producers, herds = indexProducers(recipes), indexHerds(husbandry)
-    local capacity, roots = {}, {}
+    -- Rødderne kører for sig selv med fuld fart: deres egne input kræves af deres eget træ. Som leverandør til en
+    -- anden rod har de derfor fuld kapacitet, men deres input regnes ikke med igen (standalone = ingen rekursion).
+    local capacity, roots, standalone = {}, {}, {}
     for _, recipe in ipairs(recipes or {}) do
         capacity[recipe.key] = recipe.cyclesPerMonth or 0
-        if recipe.enabled and not recipe.byChain then table.insert(roots, recipe) end
+        if recipe.enabled and not recipe.byChain then
+            table.insert(roots, recipe)
+            standalone[recipe.key] = true
+        end
     end
     table.sort(roots, byKey)
-    for _, root in ipairs(roots) do capacity[root.key] = 0 end   -- rødderne kører for sig selv
 
     local function problem(kind, fillType, rootKey, detail)
         table.insert(chain.problems, {kind = kind, fillType = fillType, rootKey = rootKey, detail = detail})
@@ -96,9 +100,11 @@ function ADChainModel.build(recipes, husbandry, crops)
                 if cycles > 0 then
                     capacity[recipe.key] = capacity[recipe.key] - cycles
                     rest = rest - cycles * perCycle
-                    chain.needRecipes[recipe.key] = (chain.needRecipes[recipe.key] or 0) + cycles
                     table.insert(node.producers, {key = recipe.key, building = recipe.building, buildingName = recipe.buildingName, cycles = cycles})
-                    for _, child in ipairs(inputsOf(recipe, cycles, depth, path, rootKey)) do table.insert(node.children, child) end
+                    if not standalone[recipe.key] then
+                        chain.needRecipes[recipe.key] = (chain.needRecipes[recipe.key] or 0) + cycles
+                        for _, child in ipairs(inputsOf(recipe, cycles, depth, path, rootKey)) do table.insert(node.children, child) end
+                    end
                 end
                 if rest <= 1e-9 then break end
             end