Grain Sorghum Agronomy

Grain Sorghum Agronomy

Pacific Seeds has been investing in grain sorghum extension and agronomy for over a decade with the aim of providing expertise and support for growers and agronomists to maximise the production of their grain sorghum crops.

 

Grain Sorghum Agronomy

Your Technical Guides

Seed Bed Preparation

The best crops start with the best establishment. When making the decision to plant it is vital the paddock and seed bed are in a desirable state. Ideally, it should be free of weeds, have manageable levels of stubble, a fine enough tilth and adequate level of soil moisture.

If the crop suffers from problems at planting, it will often not fully recover and so be yield limited from the start. By getting planting right you give your crop the best chance to maximise yield potential.

Optimal Seed Spacing

There is a common thought with grain sorghum that the plant will compensate for any gaps in the plant stand using its ability to tiller. Although the ability to tiller is often a very desirable trait, increasing yield potential by taking advantage of favourable conditions, is it possible for tillering alone to make up for any missing or unthrifty plants? 

Our research into grain sorghum seed placement assessed various seed placements and has shown that having unevenly placed seed can impact final yield and the return per hectare.

The role of nutrients

For each tonne of yield produced, the sorghum plant requires defined quantities of nutrients. Nutrient deficiencies can lead to poor vigour, discolouration, a reduction in growth, delayed or uneven flowering and a reduction in yield as well as grain quality.  Appropriate rates of fertiliser need to be applied in consideration of factors such as:

The nutrients that are most frequently limited in sorghum production are nitrogen, phosphorus, sulphur, potassium and zinc. Sorghum takes up 75% of its nitrogen requirement in the vegetative period prior to floral initiation (about 6 leaves open).

News

Mark Donaldson Memorial Shield comes full circle

October 21, 2019 Respected Central Queensland farming award, the Mark Donaldson Memorial Shield, has come full circle in its ninth year, with Mark’s wife Kim and son Patrick Donaldson winning with their crop of sorghum. The shield honours respected Capella farmer Mark Donaldson, who died in a tragic accident at the family property in 2010….

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Agronomist takes advantage of igrowth on family farm

October 14, 2019 Being an agronomist means Scott Rogers, Moree, advises farmers during planting, spraying, harvest and any time in between, but being a farmer himself means he can then take those lessons back to the family farm. It’s a handy position to be in, and one that paid off last season for the sorghum…

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MR-Bazley sorghum delivers for Yallaroi growers

September 12, 2019 Sorghum is well-known for its water use efficiency but a father-and-son at Yallaroi were still not prepared for the yield their crop managed to produce through the dry 2018-19 summer. Andrew and Zack Thompson’s 150ha crop of MR-Bazley sorghum yielded over three tonnes per hectare on just 110mm of in-crop rainfall from…

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