Get autumn sowing right FRANK MICKAN10 Mar, 2014 02:00 PM Print - TopicsExpress



          

Get autumn sowing right FRANK MICKAN10 Mar, 2014 02:00 PM Print Increase Text Size Decrease Text Size Comments 0 Autumn sowing is the key to quality pasture for the next season. Avoid dry sowing before the autumn break. Autumn sowing is the key to quality pasture for the next season. LATEST Get autumn sowing right Inghams assets for sale No quality to ‘wine’ about Dairy demand for water surges Former station split Dairys big picture When looking towards the autumn sowing season it’s always good to review a few key points to help make sure this season leads to a successful germinating pasture that is ready to be productive into the future. Timing Because most crop and pasture seeds are sown at a depth of about one to two centimetres, a few days of extremely hot temperatures (over 30º C) can destroy many seeds. Avoid dry sowing before the autumn break – particularly if planning on sowing in late February and early March as the potential for high temperatures is still quite likely. Ensure good seed/soil contact Whatever sowing method is used, it is crucial that the seed has soil around it to access moisture and nutrients. Grass clumps or small clods around or over the seed will usually result in seedlings not surviving. Having a fine seedbed plus rolling before (to ensure an even seedbed to sow in to) and/or after sowing assists good seed to soil contact. Harrows, chains or press wheels can assist in covering seed when drilling. Direct drilling into uncultivated soil or cultivated summer crop areas allows grazing to occur when the plants have passed the ‘twist and pluck’ test. Be aware that direct drilling into moist soils with high clay content e.g. heavy clay loams, may lead to smearing or glazing of the drill line. This is not a problem if the conditions remain moist. However, after a very hot dry period smeared slots can be ‘baked hard’ preventing the new seedling roots penetrating the soil. Severely pugged paddocks may require a full cultivation with discing and roterra or one to two passes with a roterra to get a level seedbed. This often results in a paddock with soft soil consequently the first grazing at least, may have to be delayed to avoid severely damaging the paddock from cattle hooves in early winter. It is important to improve seed to soil contact post sowing by using a light roller, light weld mesh, or upturned pasture harrows.
Posted on: Mon, 10 Mar 2014 04:32:08 +0000

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