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Regenerative Agriculture and Direct Drilling
Regen Ag Crops & Agronomy
The Elaine Ingham Challenge
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<blockquote data-quote="Simon Chiles" data-source="post: 856514" data-attributes="member: 1233"><p>Nothing wrong with them as long as you recognise that they are only a snapshot in time and over time will give you a trend. I certainly think OM levels are worth monitoring. </p><p>I also think that provided you try to raise OM by whatever means it is fairly easy to quickly spot ( by the no of worm casts ) when nature is taking it's course and it's safe to assume that the soil is starting to work for you ( also confirmed by yield maps ). Don't get me wrong I have no intention of going organic. </p><p>30 odd years of making hay on pp has given me a fair idea about what would happen in Dr Ingham's example. It's probably as close as an analogy as we're likely to see. I find that pp that is weened off fert yields drop to about 10-20% of fertilised yield in the first few years. After a few years yields increase to about 60- 70%. If on the rare occasion I fail to make any hay I just leave the crop to rot ( same effect as applying compost ) and the yield will increase a couple of years later by about another 10-20 %. Applying a fungicide will lift yields by up to 20%. If I put fert on, after a long time without it, yields rocket to 200% of a normal fertilised yield but will quickly drop back to a normal yield in a few years time. As I have more grass offered to me than I can cope with, not applying fert and accepting 60-70 % yield is an economic solution for the hay ( it also makes easier ) however, for me, it's not an option on an arable crop especially as your fixed costs are the same whether your wheat yields 2.5t/acre or 4t/acre.</p></blockquote><p></p>
[QUOTE="Simon Chiles, post: 856514, member: 1233"] Nothing wrong with them as long as you recognise that they are only a snapshot in time and over time will give you a trend. I certainly think OM levels are worth monitoring. I also think that provided you try to raise OM by whatever means it is fairly easy to quickly spot ( by the no of worm casts ) when nature is taking it's course and it's safe to assume that the soil is starting to work for you ( also confirmed by yield maps ). Don't get me wrong I have no intention of going organic. 30 odd years of making hay on pp has given me a fair idea about what would happen in Dr Ingham's example. It's probably as close as an analogy as we're likely to see. I find that pp that is weened off fert yields drop to about 10-20% of fertilised yield in the first few years. After a few years yields increase to about 60- 70%. If on the rare occasion I fail to make any hay I just leave the crop to rot ( same effect as applying compost ) and the yield will increase a couple of years later by about another 10-20 %. Applying a fungicide will lift yields by up to 20%. If I put fert on, after a long time without it, yields rocket to 200% of a normal fertilised yield but will quickly drop back to a normal yield in a few years time. As I have more grass offered to me than I can cope with, not applying fert and accepting 60-70 % yield is an economic solution for the hay ( it also makes easier ) however, for me, it's not an option on an arable crop especially as your fixed costs are the same whether your wheat yields 2.5t/acre or 4t/acre. [/QUOTE]
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Regenerative Agriculture and Direct Drilling
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The Elaine Ingham Challenge
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