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Paddock rotation and history

Catalogue: GRDC Updates
My aim is not to provide a recipe for planting summer crops in north-western NSW, but to provide some insight and tools to assist in the decision making process... Table 1 shows that when planting between October and the 1 st of January, there is an 80% chance of receiving at least 110-120mm of in-crop rainfall this calculation does not consider the impact of rainfall timing on crop demand... Figure 3 supports the back of the envelope calculation suggesting the 150mm of starting water is the minimum required to achieve a 3t yield 5 years in 10 while if you have 200mm of stored water the probabilities improve to 6-8 years in 10...
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Catalogue: GRDC Updates
Mean three year gross margin $/ha with crop type and end use grown in 2009 followed by CorrellA wheat in 2010 and 2011 at sand site... Table 1 illustrates that all the break crop options evaluated at Junee in 2011 had higher gross margins than barley or wheat except chickpea, and the pea and lupin grown for brown manure rather than grain... It is assumed that rhizobial numbers in the soil were high enough for the crop to reach its potential...
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Catalogue: GRDC Updates
My aim is not to provide a recipe for planting summer crops in north-western NSW, but to provide some insight and tools to assist in the decision making process... I have used 100 mm as an average loss figure for a summer crop in this region... Figure 4 supports the back of the envelope calculation suggesting the 113mm of starting water is the minimum required to achieve a 2.6t yield 6-8 years in 10...
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Catalogue: GRDC Updates
The deciding factors in choosing to sow different types of pulse crops in the Mallee.. Nitrogen Fixation: Work completed last year by CSIRO ( T. McBeath et al., 2012) on break crop benefits across soil types showed that crop sequences that included pulses had beneficial influences on microbial activity and diversity, and nitrogen mineralisation... Other work at the same site completed by Gupta et al., 2011 showed that the increase in microbial activity also improved P mobilization in the soil, and P uptake from the following crop...
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Catalogue: GRDC YouTube channel
In the first of a 2 part story SARDI Farming System project leader Nigel Wilhelm looks at Break Options for Low Rainfall Zones... WATCH PART 2: Break Crops & Grassy Weeds http://www.grdc.com.au/GCTV14-BreakCropsAndGrassyWeeds 1.54: GCTV EP#14 Break Options for LRZs 4.89: Narrator: Tony Crowley If you are growing wheat in a low rainfall 8.34: zone research is showing a break phase in your cropping program can have significant 13.049: economic benefits... 154.349: Nigel Wilhelm: It is bordering on spectacular to be honest. 157.749: When we started the project you know if you had told me you can get a 30 or 40 percent 163.359: yield increase by putting a break crop into a paddock in the low rainfall areas I would 169.049: have said fair enough...
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Catalogue: GRDC Media
Caption: Canola plants showing symptoms of manganese toxicity where the subsurface pH is below 4.8... Caption: Assessing and comparing the subsurface pH of healthy and unhealthy canola plants... With Planfarm, I have been involved in Grains Research and Development Corporation (GRDC) supported paddock testing work which complements the Focus Paddocks project...
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Catalogue: GRDC Media
Growing break crops in a well-managed way can significantly and consistently boost the yields and profits of subsequent wheat crops in good seasons and reduce overall farming risks... Dr Lawes said an analysis of 30 years of data from across the WA grainbelt using the crop and economic modelling systems APSIM and LUSO indicated there was a 0.6 tonne per hectare average yield benefit in wheat crops grown after a lupin break crop and 0.4t/ha benefit following canola, compared with wheat grown after wheat... "We found the first wheat crop in a continuous wheat sequence could increase costs and depress yields in the second and third year wheat crops and reduce the probability of these subsequent wheat crops making a profit," he said...
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Catalogue: Ground Cover
Crop diversity lifts profitability.. For example, a GRDC-funded CSIRO project modelled the profitability of different crop sequences in Western Australia and found that the most profitable wheat crop followed a managed pasture... Log in or register to leave a comment...
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Catalogue: GRDC Media
Growing break crops in a well-managed way can significantly and consistently boost the yields and profits of subsequent wheat crops in good seasons and reduce overall farming risks... Dr Lawes said an analysis of 30 years of data from across the WA grainbelt using the crop and economic modelling systems APSIM and LUSO indicated there was a 0.6 tonne per hectare average yield benefit in wheat crops grown after a lupin break crop and 0.4t/ha benefit following canola, compared with wheat grown after wheat... "We found the first wheat crop in a continuous wheat sequence could increase costs and depress yields in the second and third year wheat crops and reduce the probability of these subsequent wheat crops making a profit," he said...
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Catalogue: GRDC Media
GRDC chairman Keith Perrett joined the WA Agriculture and Food Minister Ken Baston at the Dowerin GWN Machinery Field Days today to make the announcement... Mr Perrett said the Department of Agriculture and Food (DAFWA) would conduct the research into some of the key priority areas facing WA grain growers including break crops, plant disease, soil acidity, pests and spray drift... From left, DAFWA project manager for grain crop agronomy Ben Curtis, left, DAFWA acting executive director for grains industry Mark Sweetingham, GRDC western regional panel chairman Peter Roberts, WA Agriculture and Food Minister Ken Baston, GRDC chairman Keith Perrett, GRDC chairman-elect Richard Clark, GRDC board member Kim Halberd and GRDC managing director John Harvey...
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