Paddock records of the grazing history or actual pasture measurements are usually the best ways of determining which to target for renewal or for topping-up and oversowing, according to Barenbrug Australia agronomy services manager Rob Winter.
“As with all successful crops and pastures, planning, preparation, timely operations, weed and pest management, grazing and using fertiliser effectively are all important factors in helping to assure a good outcome,” he said.
Getting a good start
- Soil test early and address pH, soil nutrient levels and balance as may be feasible for your budget and the soil properties.
- Plan for a preparation phase — weed control, cultivation, levelling, drainage work, grazing out, herbicide or insecticide withholding or plant-back periods.
- Which species, varieties, sowing rates to use, and how to go about it will depend on your individual circumstances and objectives.
- Reputable seed suppliers will offer access to modern, productive and reliable options, technical support and peace of mind.
- Sow in a timely fashion at a suitable depth with appropriate moisture.
- Consider a post-emergent top-dressing of fertiliser nitrogen — improved grasses respond well and this helps to out-compete early weed competition. This could be urea, SOA, DAP or a mixed fertiliser that suits your program and paddock.
Give clovers a fighting chance
If a good pasture legume content is desired, keep the sowing rate of grass relatively modest and increase the percentage mix of clover, or adopt other tactics such as cross-sowing clover seed or possibly broadcasting some extra clover.
Early grazing management should allow for a quick first grazing in order to open up the sward somewhat and let the clovers have room and sunlight.
Sowing earlier in the season, rather than later will also aid clover establishment — clovers tend to grow very little when soil temperatures decline to around 8-10°C, whereas the grasses will grow relatively well by comparison at these and lower temperatures.
Early weed and pest control
Control of emerging weeds is usually essential post-sowing.
Timely sowing and good seed placement will offer quick, even emergence that will then assist with good herbicide timing options.
Monitor for and respond to slugs, snails, mites and other invertebrate pests challenges.
Seek good, experienced advice for suitable options, timings and overall approach.
Maintenance and continued performance
New pastures are likely to offer more grazing than older ones — treat them carefully and apply commensurate extra fertiliser to maintain performance.
Regular soil testing, a robust fertiliser program and weed and pest interventions may be required.
Develop a calendar of pasture monitoring and likely maintenance requirements for your particular circumstances and engage an experienced adviser to assist with technical issues and tactical options.
For more information, visit barenbrug.com.au or phone 1800 007 333.