Tag archive: fertiliser

BFDC III webinar – a chance to have your say on its future

Inspecting biomass produced in a biserrula pasture phase

Please register for a webinar on the Better Fertiliser Decisions for Cropping database and have your say on its future. – Nov 15, 2018 2:00 PM AEDT The Better Fertiliser Decisions in Cropping (BFDC) database and data interrogator has been developed over the last 7 years with training and support […]

How to adjust phosphorus after a dry year

A poor or failed crop last season will affect nutrient budgets this season. Cereal hay removes about 1–2 kg of phosphorus (P) per tonne of dry matter. Canola removes about 3 kg of P per tonne (see Table 1). Table 1. Comparison of nutrients removed in grain, straw, canola hay, […]

Chicken manure improves sandy soils

Chicken manure is helping to ameliorate sandy soils on South Australia’s Yorke Peninsula. Trial results over three years indicate that high-rate surface applications combined with deep ripping are delivering the highest marginal returns. Positive results The marginal returns from applying chicken litter (or a comparable, inorganic fertiliser), and deep ripping, […]

How are nutrients redistributed after windrowing?

Concentrating stubble into windrowed strips affects subsequent crop production, soil testing and fertiliser decisions. Wayne Pluske (Equii), Ryan Walker ( Apal Laboratories) and John Young (Wyening Mission Farm) looked at nutrient redistribution post-harvest. They measured plant material (dry matter as t/ha) and nutrient content of canola and wheat crops. The […]

Help shape the future of BFDC lll

A review of the Better Fertiliser Decisions for Cropping Systems in Australia database is set to commence with a series of industry consultative meetings over the next three months. The BFDC database contains yield response curves for many crops, nutrient applications and soil types across grain growing regions and has been […]

Will late N applications be worthwhile?

Growers in some lucky regions are now considering late, in-crop applications of nitrogen. Crops in Western Australia, south-west Victoria, and parts of Tasmania still have above average yield potential. Given current grain prices, the economic reward from late N application to these crops is likely to be high. But late […]

Soil sampling to boost profit with variable rate technology (VRT)

Variable rate technology (VRT) means matching fertiliser or soil amendment rates to soil types, fertility, and yield potential. Trials in Western Australia  (WA) showed a gross margin increase up to $50/ha using VRT. Costs might stay the same but resources are better allocated. This can translate to improved yield. Because […]

Why should you use a lab with ASPAC certification?

Without tests, crop nutrition is best guess. Plant and soil testing guide best practice on the farm. But who guides best practice in the lab? What is ASPAC? The Australasian Soil and Plant Analysis Council (ASPAC) has an inter- laboratory proficiency program (ILPP). Certification under this program means a lab […]

What is the DGT Phosphorus test and when should you use it?

The Diffusive Gradient in Thin-films (DGT) Phosphorus is an alternative P soil test. Colwell-P can overestimate available P on calcareous soils, and acid gravel soils. How does the DGT test work? The DGT is a cylindrical plastic device that uses an iron oxide gel as a P-sink, which attracts available […]

Why should you keep good farm records?

Detailed records on crop nutrition help growers and advisors: Plan fertiliser applications Farm records feed into nutrient budgets and future fertiliser decisions. Nitrogen budgets rely on soil test data, yield, and grain protein estimates. Yield and protein expectations are often informed by records from previous, similar seasons. Review performance How […]