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Regenerative Agriculture and Direct Drilling
Regen Ag General Discussion
Stupidly high seedrates
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<blockquote data-quote="Farmer Roy" data-source="post: 5215360" data-attributes="member: 71668"><p>In our ( long term ) zero till Cropping we work on about 85% emergence. Taking into account germination % & field losses, we are expecting nearly all viable seeds to come up.</p><p>Seed soil contact & planting into moisture is crucial to this. Minimal disturbance openers ( preferably disc ), presswheels, furrow closers, drag chains if needed - seed placement & soil contact is king</p><p>Our standard dryland ( non irrigated ) rates for wheat are around 50kg / ha & canola about 2kg</p><p></p><p>Highest plant population doesn't always equal highest yield - especially in drier conditions. Too much energy is put into vegetative growth & not grain yield . . .</p><p></p><p>Higher plant populations can result in small or pinched grain</p><p>High plant populations also lead to denser canopies, reduced airflow, higher humidity & increase in foliar disease . . .</p><p></p><p>West of here, 20 - 30 kg / ha for wheat is more common</p><p></p><p>Even under irrigation, you won't find rates much above 100kg / ha. But then, we may have a longer growing season</p><p></p><p>with our summer row crops ( cotton, sorghum, corn, sunflowers, generally planted on wide 75cm - 100cm rows, with precision planters / individual seed metering ) our zero till seed rates are actually coming down from what they were, due to the much better planting conditions, improved seed soil contact & increased establishment %.</p><p></p><p>In the early days of zero till here, people did increase seeding rates to compensate for " poor " establishment, but now, with better knowledge, techniques & equipment, we are getting far better establishment with zero till or direct drill than we did with conventional cultivated seedbeds.</p><p>We find we are now reducing our seed rates as establishment is so good</p><p>The only time we would really up our seed rates much ( apart from having low germ seed ) is if we were planting particularly late in the season</p><p></p><p>Particularly relevant for expensive hybrid or GM seeds</p></blockquote><p></p>
[QUOTE="Farmer Roy, post: 5215360, member: 71668"] In our ( long term ) zero till Cropping we work on about 85% emergence. Taking into account germination % & field losses, we are expecting nearly all viable seeds to come up. Seed soil contact & planting into moisture is crucial to this. Minimal disturbance openers ( preferably disc ), presswheels, furrow closers, drag chains if needed - seed placement & soil contact is king Our standard dryland ( non irrigated ) rates for wheat are around 50kg / ha & canola about 2kg Highest plant population doesn't always equal highest yield - especially in drier conditions. Too much energy is put into vegetative growth & not grain yield . . . Higher plant populations can result in small or pinched grain High plant populations also lead to denser canopies, reduced airflow, higher humidity & increase in foliar disease . . . West of here, 20 - 30 kg / ha for wheat is more common Even under irrigation, you won't find rates much above 100kg / ha. But then, we may have a longer growing season with our summer row crops ( cotton, sorghum, corn, sunflowers, generally planted on wide 75cm - 100cm rows, with precision planters / individual seed metering ) our zero till seed rates are actually coming down from what they were, due to the much better planting conditions, improved seed soil contact & increased establishment %. In the early days of zero till here, people did increase seeding rates to compensate for " poor " establishment, but now, with better knowledge, techniques & equipment, we are getting far better establishment with zero till or direct drill than we did with conventional cultivated seedbeds. We find we are now reducing our seed rates as establishment is so good The only time we would really up our seed rates much ( apart from having low germ seed ) is if we were planting particularly late in the season Particularly relevant for expensive hybrid or GM seeds [/QUOTE]
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Regenerative Agriculture and Direct Drilling
Regen Ag General Discussion
Stupidly high seedrates
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