The relationship between seed and fertiliser placement is crucial to plant growth and health.
Fertiliser should never be placed directly below the seed. when moisture is limited roots will always grow down to seek moisture, hence entering a band of concentrated fertiliser that is toxic to plants when moisture stressed.  Fertiliser should never be deep banded ( 30mm or more below seed ). Winter crops will suffer in early growth stages if the soil remains cold and wet and plants can't access the fertiliser that has been deep banded. In these conditions fertiliser is very prone to leeching making it inaccessible to plants at later growth stages.  As feeder roots on plants grow laterally it is ideal to position fertiliser in a band adjacent to the seeds planted. In dry conditions With this positioning roots can access deep subsoil moisture without being detrimental to plant growth and health.  Achieving successful paired seed rows delivers optimum competition against weeds and promotes early crop canopy closure for moisture retention.
Rootboot Seedbed and Fertilizer Placement


Jason Pfitzner
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