UPDATE: SOUTH Australian grain growers have made big efforts to get their crops into Viterra's storages in the southeast of the state.

A grain grower in the Frances district delivered 29 loads of grain in a day using a number of trucks.

A Coonalpyn farmer delivered 15 loads in a single day using the same truck.

Harvesting in the southeast region was now 90 per cent complete – similar to most areas in the grain belt.

Viterra said 705,000 tonnes of grain were delivered to the state’s storages last week, taking total receivals to 5.9 million tonnes.

The company said rain and harvesting drawing to a close in some grain regions accounted for a slowing in activity and lower receivals.

The Eyre Peninsula harvest was 95 per cent complete, with 2.3 million tonnes delivered into the network.

Rain brought harvesting to a halt on the Yorke Peninsula were 1.1 million tonnes of grain had been received.

Growers still had wheat, barley, canola and lentils to deliver to local storages on the peninsula.

The largest tonnage delivered last week was 263,000 tonnes made in the region north of Adelaide.

More than 1.5 million tonnes had been received in the region so far.

Harvesting in the Murray Mallee was also 90 per cent complete, with the regional total now at more than 350,000 tonnes.