Term
| why nutrient losses in surface runoff are of concern |
|
Definition
| because they lead to contamination of surface waters |
|
|
Term
| what contamination of surface waters may result in |
|
Definition
| the acceleration of eutrophication in streams and lakes and in the generation of hypoxic zones in estuaries |
|
|
Term
| Surface waters enriched with phosphorus can cause... |
|
Definition
| accelerated eutrophication |
|
|
Term
| surface waters enriched with nitrogen usually cause... |
|
Definition
|
|
Term
| The loss of nitrogen and phosphorus in surface runoff is usually larger when... |
|
Definition
| nutrients are placed on the soil surface |
|
|
Term
| why broiler litter has been applied |
|
Definition
| typically to meet N requirements |
|
|
Term
| a bad byproduct of application of broiler litter |
|
Definition
| it has resulted in phosphorus application rates that exceed by three to four times the amount of phosphorus required |
|
|
Term
| The amount of phosphorus lost in surface runoff depends in part on this property of fertilizer or manure applied. |
|
Definition
| the solubility of phosphorus in the manure or fertilizer applied |
|
|
Term
| why a larger loss of phosphorus in surface runoff will likely occur from the inorganic fertilizer than from the manure |
|
Definition
| because the percentage of the total phosphorus that is soluble in water is much larger in inorganic fertilizers than in manure |
|
|
Term
| The first objective of this laboratory exercise |
|
Definition
| Measure water-soluble P in broiler litter and triple superphosphate |
|
|
Term
| The second objective of this laboratory exercise |
|
Definition
| Measure P losses in surface runoff from broiler litter and triple superphosphate |
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