Over 7000 people engaged with the MPCN Northern Region program in 2012 – 2015. The More Profit for Crop Nutrition (MPCN) program aimed to improve returns from fertiliser. The program funded research and extension on soil and crop nutrition. The e-Extension and Training projects integrated the latest advice. Growers and […]
Crop damage caused by frost looks a lot like copper deficiency. Leaf damage extends back from the tip of the leaf. Damage to seed heads can be easily confused too. Other than similar symptoms, there’s little evidence yet to link frost and copper deficiency.
The location of damage can help with […]
Crops may source much of their nitrogen (N) from in-crop mineralisation (ICM) of soil organic matter. Of total crop N at harvest, an estimated average 63% came from ICM in a recent Victorian study. Total crop N includes grain, straw and roots. Root N is about 10% of grain and […]
Do you want to help with crop nutrition research? One of the GRDC’s latest research projects (UQ00082) needs nutrient deficient trial sites. The trial sites will help develop guidelines for nitrogen (N), phosphorus (P), potassium (K) and sulfur (S) for broad-leaved crops in eastern Australia.
For cereals, we know the […]
Mid-row Banding (MRB) places nitrogen (N) fertiliser below the soil surface in every second crop inter-row. Recent research looked at using MRB for in-crop N applications. In-season N applications aim to meet a crop’s peak N demand and improve the efficiency of crop uptake. MRB can reduce some risks that […]
This season, starter phosphorus (P) is producing strong early crop vigour. Deep P placement effects and the response to starter P are being documented at a long term monitoring site at Terry Hie Hie, in far north New South Wales.
The trial site compares plots with different rates of P […]
Chris Dowling explains the keys to successful sampling and interpretation of plant tissue tests in winter crops.
Why use tissue tests?
Plant tissue tests ask the crop ‘what’s wrong?’. Ideally, analysis can get to the core of an issue before yield has been overly compromised.
Plant tissue results are more sensitive […]
Grain zinc (Zn) content is important for seedling vigour. Make sure grain Zn levels are adequate if you are saving grain to seed next season’s crop. Retaining seed grown on Zn sufficient paddocks can reduce the risk of Zn deficiency in young crops.
Less than 500 micrograms Zn per seed […]
The yields of ‘break crops’ are more important to farm incomes with higher prices for some non-cereal crops. In 2017, 22.5 million hectares were sown to winter crops. Over 20% – 4.7 million ha – were non-cereals. In the period leading up until 2011, break crops were around 14% of […]
Deep N soil tests are showing low available nitrogen (N) to start 2017 winter crops. Just over half of the tests coming through Nutrient Advantage Lab Services show < 30 kg/ha of plant available nitrogen in the root zone. Three- quarters show < 60 kg/ha of nitrogen.
With less than 30 […]