Category: Sowing

Use tissue tests to detect deficiencies

Micronutrients or trace elements are an essential part of crop nutrition. They are as important as the better-known macronutrients nitrogen, phosphorus and potassium. This was a key message on the southern tour of the MPCN II Roadshow in August 2016.
Scott and Jillian Vaessen farm at Tabbita in southern NSW. Their […]

New way to gauge nutrient status

Nutrient Rich Strips are not new in cropping. They are used to see if there is a clear growth response to an applied nutrient. But it is often hard to quantify the response and translate it into fertiliser rate recommendations. Some fertiliser advisors are using a new tool to address […]

Give seeds the best chance in a dry start – how to avoid fertiliser burn

Seeds can be damaged by fertiliser placed too close or at too high rates. Dry soils increase the risk of harm to germinating seeds from fertilisers. Take extra care with fertiliser and seed placement this year. The dry lead in to 2018 winter sowing means last year’s strategy might not […]

Does incorporating lime boost fertiliser response?

Does addressing soil constraints change crop nutrition requirements? DAFWA researcher Craig Scanlan runs field trials in central and northern WA. The trials investigate links between soils, seasons and crop nutrition. The focus is how incorporating lime affects yield response to fertilisers. Soil mixing to treat water repellent soils is also […]

Help Australia day mungbeans get what they need

Mungbeans growing in cereal stubble. GRDC
Some rain around Australia’s northern region saw some last minute mungbean crops go in.
The GRDC Mungbean Grownotes suggests we base fertiliser recommendations on:

soil test results
fallow length
yield potential
paddock history.

That’s comprehensive, but with an opportunity crop there’s not always the chance to cover all the bases. […]

Soil sampling with banded fertiliser

Soil sampling paddocks with a history of precision placement of fertilizer requires special planning. Some elements, such as soil P, remain very close to where they were placed in the soil. Random sampling could give falsely high or low test results depending on how the sampling pattern intersects with the placement […]

Test what when to help crop nutrition decisions?

Lab tests help advisors with fertiliser and soil amendment planning. Without lab tests, crop nutrition can be a ‘best guess’. Returns from fertiliser inputs might not be optimal. Yields could suffer.
Soil, plant tissue, and grain testing can guide crop nutrition throughout the season. Soil tests indicate crop available nutrient levels […]

Is nitrogen placement different north vs south?

Trials looking at placing nitrogen fertiliser into the soil have shown some different outcomes. In the southern region adding mid-row banding (MRB) to the crop nutrition toolkit looks interesting. A trial showed modest yield gains and better fertiliser uptake. In the northern region, rate looks more important than how nitrogen […]

Tillage increases P accessibility

Tillage can redistribute phosphorus (P) within the top 10 cm of the soil. P often becomes concentrated at the soil surface, especially in no-till paddocks. Getting P deeper into the soil is important in dry seasons when the active root zones are deeper.
Trials tested the response of wheat to P […]

How to account for stubble nutrients next season

Stubbles can be a source of nutrients for next season. Different crops grown under different conditions have varying amounts of nutrients in their stubbles. Nutrient budgets can consider the amount and type of stubble.
How much stubble?

Stubble loads can be estimated from grain yield and the amount of growth. For cereals, […]