Amazing how fast water starved pastures turn green and grows after a good rain...
...but then they need dry days to "harden up" the grass for it to become actual good nutrition for cows.
In exactly that situation now. Almost no rain in March. Thunderstorms nearly daily since then. The cows are going into long lush pasture... and eating through it twice as fast as you'd expect just by looking at the grass.
Old timers here are willing to levy considerable criticism at our modern farmers who seem to have forgotten that clover (legumes) grow grass and that high nitrogen rates applied will advantage the grass to the detriment of the clover which is no longer doing the whole job for free.
The website seems to be aimed at cropping situations. But it also needs to make a far better argument if the farmer isn't going to think they could match the benefits by reducing applied nitrogen and increasing the legume content (or putting legumes into a crop rotation).
Added. I've farmed here for 8 years without applying a jot of artificial nitrogen and the farmer who had the place for ten years before me didn't apply nitrogen regularly either. I'm not sure my observations add anything useful though - the farm has clover and grows grass pretty much as you'd expect for the contour (which is the reason I don't use nitrogen the farm is only driveable in high summer it would have to go on by helicopter). I've had visitor after visitor several years back... I counted around 16 of them... viewing the pasture in early spring insisting it was starved and I must kill someone demanding a truck drive over those hills with urea.
My farm doesn't look starved to me. It grows all through summer because this is a high rainfall area and it definitely lacks the rich green-blue colour of the farms it overlooks - but it has a wide range of legumes and other herbs that can't thrive under a regular nitrogen program. And the animal health issues are so minimal they're not worth mentioning, I worked for an older farmer who told me if he applied nitrogen he'd get lame cows, he did, and he did... as every other farm I'd worked on used nitrogen it had never been possible to make the connection between nitrogen-boosted grass and various cow health conditions before then.
One of those farmers who tried to insist that I use nitrogen said "clover doesn't grow over winter". But it does. What's more, it comes into fast growth right when the weather conditions are right for the *grass* to start growing fast and use more of the soil nutrients. Extra fertiliser won't make grass grow without the weather cooperating.
Don't listen to me though the bank don't consider the farm to be productive enough.