THE dual citizenship saga engulfing Canberra politics, with many members of parliament involved, is a constitutional crisis and the Canberra leadership isn’t treating the issue with the importance it deserves. 

Section 44(i) of the Constitution is crystal clear, anyone who is a subject or a citizen or entitled to the rights or privileges of a subject or citizen of a foreign power can’t sit in the Australian parliament. 

The reason this was written is because there is a clear conflict of interest in governance.

Cory Bernardi stated the obvious when he said there is only one way forward from this situation and that is for the Prime Minister to prorogue the parliament, effectively ending this session pending the outcome of the High Court and any by-elections needed. 

This is total common sense and a conservative approach to take. 

Trevor Whittred, Como

Controlled traffic farming (CTF) in WA is set to increase from less than 10 per cent, with New South Wales and Queensland at 80pc, so let’s optimise paddock layouts now at the outset, to minimise future erosion.

No-till sowing only halved surface runoff from a 92 millimetre rain in six hours, in our Department of Agriculture research at Chapman near Geraldton in 1992.

And in 1983 rainfall infiltration came back to as little under no-till as tillage, once soil profiles wetted up near Beverley. 

Therefore any further rain had nowhere to go but off.

Our only protection against erosion down wheel tracks is, as far as possible, not to have them running downhill.

The dull rumbling you can hear about downhill working, is generations of soil conservationists turning in their graves.

Meanwhile good luck to the fledgling WA Controlled Traffic Farming Association.

It’s all very well to have the Australian Controlled Traffic Association. 

But our no-till experience was that there’s nothing quite like seeing and cogitating on other farmers’ practices at field days.

Kevin Blight, Busselton