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Arable Farming
Cropping
Nitrogen 3rd pass
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<blockquote data-quote="teslacoils" data-source="post: 7547600" data-attributes="member: 127792"><p>The conclusion is it's all a bit of a juggle. Especially if organic manures involved. Broadly speaking, the rb209 25kg per ton is good enough. I'd be fine at say 200kg after osr. But less due to the legacy N and more due to the early drilling. Comparing the root mass of different drilling dates, on different soil types, and you've more of an idea. If you have half the root volume, and less root depth, then that alters the quantity and timing / splits of fert. </p><p></p><p>We are rarely limited by moisture, or disease here. So why don't we get huge crops all the time? Because we're balancing risk management with weather unknowns. </p><p></p><p>But yeah, if I had fert in the shed and was tempted I'd run another bit down a tramline and see. Shed empty now, but then I've been using up fert I bought in June 2019. And I've done enough trials to be happy.</p></blockquote><p></p>
[QUOTE="teslacoils, post: 7547600, member: 127792"] The conclusion is it's all a bit of a juggle. Especially if organic manures involved. Broadly speaking, the rb209 25kg per ton is good enough. I'd be fine at say 200kg after osr. But less due to the legacy N and more due to the early drilling. Comparing the root mass of different drilling dates, on different soil types, and you've more of an idea. If you have half the root volume, and less root depth, then that alters the quantity and timing / splits of fert. We are rarely limited by moisture, or disease here. So why don't we get huge crops all the time? Because we're balancing risk management with weather unknowns. But yeah, if I had fert in the shed and was tempted I'd run another bit down a tramline and see. Shed empty now, but then I've been using up fert I bought in June 2019. And I've done enough trials to be happy. [/QUOTE]
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Arable Farming
Cropping
Nitrogen 3rd pass
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