AUTUMN TO-DOs Farmlands’ experts share the good oil on what needs your attention this season.
AGRONOMY Emma Chrystall Technical Field Officer Waipukurau Autumn regrassing is a big event for many farms. Planning and preparation should be well under way. Renewing pastures can improve the overall profitability of a farm through increased annual and seasonal pasture production, improved pasture quality, higher stocking rates and increased per head and per hectare production and performance. • Assess perennial pastures to identify any with a low percentage of desirable species, a large weed burden and evident pest pressure. • Identify and understand feed demand and market opportunities for the next 3-6 months and beyond and tailor species to these requirements. Individual priorities and challenges will ultimately determine species selection. If you have a high winter feed demand, an annual or Italian ryegrass should be considered. Cocksfoot/ ryegrass mixes are increasingly popular to improve persistence in permanent pastures. The cocksfoot component has helped many farmers overcome persistence challenges in harsh summer-dry environments.
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Tall Fescue-based perennial pastures have also proven successful across the country. These pastures increase early spring pasture production, improve pasture quality throughout the summer and provide a safe block for stock grazing in areas prone to facial eczema. • Ensure glyphosate spray-outs are targeted to individual paddocks. In those with a high weed burden, spray-outs using spikes/companion herbicides such as Sharpen, Nail, Granstar or Versatil are the best way to control hard-to-kill weeds. When using companion herbicides, consider plantbacks in the first instance, especially if clover is being drilled. Insecticides can also be added to spray-outs to reduce pest populations such as Argentine stem weevil. • Tailor fertiliser plans to soil types, fertility and predicted production. Feed new grass accordingly and always consider a side-dressing of nitrogen and sulphur after the first grazing. • As always, preparation is everything. Factors that contribute to successful pasture renovation include soil fertility, cultivar selection, sowing technique, soil compaction/drainage, drought, pests and grazing management. Take time to rectify any causes of poor pasture performance before drilling to ensure success.
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