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Posted

Interestingly, the W.A. Dept of Agriculture did a study on evaporation levels from farm dams quite a number of years ago. They discovered that greater levels of evaporation occurred on warm windy nights from farm dams, than during the day - and especially where the dam mouth faced the prevailing winds (South-Easterlies in the lower part of W.A.).

 

This was due to the fact that the amount of wind played a larger part in evaporation, than the hot sun during the day. Quite often, hot sunny days here have relatively low levels of wind, and it's the wind that moves the evaporated moisture.

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Posted

On a ' hot & low moisture day ' .

I put up more shade-cloth . makes a great difference. 

At the end of summer.  I had 2/3rds of the back garden covered .

spacesailor

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Posted

Typical stupid Melbourne weather. Nearly two straight weeks of hot to very hot weather, with one day where it's pissing down rain - the day of the F1 Grand Prix.

 

Let's hope it's not like that in two weeks, for the Avalon Air Show, not that I'm likely to go. I'm a bit beyond that now, but my daughter will probably go. She;ll have to take the photos for me.

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Posted

I keep looking and I can't see you getting much  rain. Humidity deals with the other factors. Relative or absolute.  Who's JUST talking about temperature.? Cold air doesn't carry much moisture, The south pole is as dry as a desert.  Tropical Maritime air masses have the most water. Nev

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Posted

Me;bourne's lovely weather surely screwed up the F1 GP, with cars spinning and sliding everywhere, with 5 cars unable to finish , including Jack Doohan, and Oscar Piastri sliding onto the grass and losing about 14 places, but managed to recover and claw his way back into the points. Even Lewis Hamilton did a bit of a waltz.

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  • 2 weeks later...
Posted

Well it finally rained at my place over the past two days. I don't have a gauge, but looking at the BOM reports I probably got about 50 mm. The first day it was steady rain that soaked in and yesterday it was a lot heavier. It's stopped now and the sky is clear. Augers well for washing day tomorrow. I can hear the creek through the property running, and the frogs are starting their mating calls.

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Posted
1 hour ago, facthunter said:

Be lovely and green soon

Sooner than you think.

The cockies around here seem to be happy. They are saying that they will be sowing by Easter. 

 

I'm amazed at how grain production has changed since the 1970s. No more burning stubble, or ploughing it in. With GPS controlling the tractors they now sow between the rows of standing stubble from the previous crop. GPS also control the headers at harvest time. The most the driver has to do is monitor the harvester's progress to avoid trees and engage the unloading auger when the field bin comes alongside. Other than that it's just a matter of monitoring systems and watching out for things that could damage the machine.

 

As for temporary storage of harvested grain, they now have a method of filling storage tubes using a method similar to that used to fill sausages. Then they can store the grin in the field until is is convenient to sell it off. No more spending days lined up at a Grain Corp silo waiting a turn to unload. 

 

The mind boggles at the financial investment in machinery and such required for 'profitable' farming these days.

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