Mungbean: response to different levels of soil nitrogen—Hopeland (summer)

2019 - 2020

Research organisaton
Funding source

Trial details

Researcher(s) N/A
Year(s) 2019 - 2020
Contributor Queensland Department of Agriculture and Fisheries
Trial location(s) Hopeland, QLD
Mungbean: response to different levels of soil nitrogen—Hopeland (summer) locations
Aims

To explore:

  • how much nitrogen is required to maximise mungbean yield;
  • could well-nodulated mungbean achieve the same yield as fertilised crops?
  • how differing the concentrations of soil nitrogen impact nitrogen fixation?
Key messages

1. Mungbean responded to nitrogen fertiliser with a yield of +2 t/ha when planted on a low starting soil nitrogen profile (~ 50 kg N/ha).

2. One irrigation at pod-fill increased yields by up to 850 kg/ha.

3. Applying irrigation during high temperatures reduced canopy temperature, which is believed to also improve pod filling and reduce flower abortion. 4. Mungbean can increase levels of charcoal rot.

Hopeland QLD 2019

A field experiment was conducted at Hopeland, near Chinchilla. The site was selected for its low soil mineral nitrogen at the time of preliminary sampling (50 kg N/ha, 0-90 cm, 19/07/2019), and the ability to flood irrigate. Both a spring and summer planted trial were planted in the same field, this report outlines details of the summer planted trial. Deep phosphorus (P) was applied across the whole site on 2 September 2019 to rectify a potential P deficiency. The P was applied as MAP at a rate of 100 kg/ha, 20-25 cm depth and 50 cm spacing. A cover crop of Panorama millet was planted on 11 October 2019 to draw down the nitrogen status of the soil. The cover crop was desiccated on 23 December 2019 and slashed on 8 January 2020. Nitrogen was applied the same day by banding the fertiliser 10 cm offset from the plant row (Table 1). All treatments were replicated four times and repeated with and without irrigation to alter yield potential. The soil N status at planting was 52 kg N/ha for the irrigated trial REGIONAL AGRONOMY (RESEARCH) | 7 and 91 kg N/ha for the dryland site (control plots only), even though these were side by side in the same paddock. When comparing the summer and spring crop planting N, the cover crop was effective at maintaining the low N status of the summer trial, effectively buffering against mineralisation increasing available N from October to January. Jade-AUP mungbean was planted on 29 January 2020 with 50 cm row spacings with 40 L/ha of Flowphos 13Z. All treatments (except Treatment 1) had inoculant applied at planting through water injection. Micro-plots were planted with non-nodulating soybeans in each plot, as reference plants for the natural abundance method (15N isotope) to measure the proportion of N in the plants that was fixed from the atmosphere (%Ndfa) by the mungbean plants under each treatment.

Lead research organisation Queensland Department of Agriculture and Fisheries
Host research organisation N/A
Trial funding source GRDC DAQ1806-003RTX
Related program N/A
Acknowledgments

The research undertaken as part of this project is made possible by the contributions of growers through both trial host farmers and the support of the Gains Research Development Corporation, Department of Agriculture and Fisheries and New South Wales Department of Primary Industries (DAQ1806-003RTX).


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Grain Legume: Mung beans
Treatment type(s)
  • Fertiliser: Type
Trial type Experimental
Trial design Replicated

Hopeland 2019

Sow date Varied. Please see trial report
Harvest date Varied. Please see trial report
Plot size Not specified
Plot replication 4
Psuedoreplication Not specified

Hopeland 2020

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Psuedoreplication Not specified
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Hopeland, QLD Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hopeland, QLD Sodosol
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Hopeland QLD

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial report and links

2019 trial report



Trial last modified: 17-03-2023 13:29pm AEST