Tech Talk – Early Spring chance to recover biomass

Discussion in 'News' started by CPM RSS, Feb 6, 2018.

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    Written by cpm

    Late-drilling needn’t mean a huge yield penalty. CPM finds out how tailoring nutrition can help boost the biomass that turns into yield. In early spring (Feb-Mar), there’s a final opportunity to influence and recover crop biomass. By Lucy de la Pasture Delayed drilling has become established as one of the most influential cultural control methods to combat blackgrass. Keeping the seed in the bag until mid-Oct means there’s more opportunity to make the most of stale seedbeds, reducing the impact of blackgrass on the crop. There’s also the added bonus that the much-relied upon pre-emergence herbicides tend to work better in the slightly cooler, moister soils of late autumn. But there’s a down-side to later-drilling, yields are generally lower and more variable. Yara’s Mark Tucker explains that by tailoring nutrition in early spring, there’s a golden opportunity to claw back lost yield potential and it’s a chance that’s being widely missed by many growers. Mark Tucker suggests increasing early nitrogen rates on backward crops to stimulate early growth in an attempt to recover biomass. What is the impact of later drilling? Approximately 1M ha in the UK is infested with blackgrass, and the vast majority of growers are…
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