Update app.py

app.py

@@ -769,7 +769,7 @@ class NutrientCalculator:
         self.element_compensation_weights = {
             "POTASSIUM_SULFATE": {"weight": 0.23, "fert": "Калий сернокислый", "main_element": "K"},
             "MAGNESIUM_SULFATE": {"weight": -0.1, "fert": "Сульфат магния", "main_element": "Mg"},
-            "MONOPOTASSIUM_PHOSPHATE": {"weight": 0.14, "fert": "Монофосфат калия", "main_element": "P"}
+            "MONOPOTASSIUM_PHOSPHATE": {"weight": -0.14, "fert": "Монофосфат калия", "main_element": "P"}
         }
 
         # Расчёт азота