| Before renewal |
| Poor drainage: |
drainage [could also reduce flood risk] |
| Poor fertility: |
soil testing & capital fertiliser application |
| Low soil pH: |
addition of lime |
| Soil compaction: |
aeration by subsoiling, cultivation |
| |
|
| At renewal |
| Insects: |
seed treatment or granular insecticide |
| Slugs: |
particularly with spray-drilling; monitor and apply molluscicide if required |
| |
|
| After renewal |
|
| Weed invasion: |
herbicide application |
| Poor fertility: |
soil testing & fertiliser application |
| Insects: |
insecticide application |
| |
|
Environmental conditions
Desirable plants die through a combination of stresses related to moisture extremes: |
| Dry/Drought: |
plant hardship, increases insect pressure |
| Wet/Flood: |
plant hardship, leading to weed invasion |
| Pugging: |
damaging desirable plant population in wet conditions, leading to weed invasion |
| Overgrazing: |
grazing plants close ground level in dry conditions, affecting their recovery and persistence |
| |
|
| The natural conditions are impossible to control but it is possible to reduce their impact: |
| Dry/Drought: |
destocking, irrigation |
| Wet/Flood: |
destocking, drainage |
| Pugging: |
destocking polices, additional supplement on hand, sacrifice paddocks |
| Overgrazing: |
remove/spread out stock in wet conditions, use of sacrifice paddock or feeding pad |
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More frequent pasture renewal is perhaps the most effective way to get significant production gains in a New Zealand farm system
Calculators
