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Arbuscular mycorrhizae play key role for mungbeans in low phosphorus soil

Silburn, C., Seymour, N. P., Gentry, J. and Bell, K. L. (2022) Arbuscular mycorrhizae play key role for mungbeans in low phosphorus soil. In: Proceedings of the 20th Agronomy Australia Conference, 2022, 6 - 10 February 2022, Toowoomba Qld.

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Abstract

Mungbean has a high arbuscular mycorrhizal fungi (AMF) dependency so there is a risk to production if growers do not adequately address phosphorus (P) nutrition. Gaps exist in current understanding of mungbean P nutrient requirements to maximise productivity, particularly if soil AMF levels are low at planting. A glasshouse trial of mungbean (cv. Jade-AU ) with factorial combinations of three AMF levels
(NIL, LOW and HIGH) and eight P rates, was conducted. All mungbean plants increased in biomass and pod production as P level increased. However, lower AMF levels in the soil meant mungbean plants required higher rates of P to attain similar growth. If AMF levels are low following a long fallow of more than 12 months and/or soil P levels are deficient to low, the application of between 44 and 87 kg P/ha is required to maximise production.

Item Type:Conference or Workshop Item (Paper)
Business groups:Crop and Food Science
Additional Information:Open access
Keywords:Mungbean, Fertiliser, symbiotic fungi, pulse, legume, phosphorus
Subjects:Agriculture > Agriculture (General) > Agriculture and the environment
Agriculture > Agriculture (General) > Soils. Soil science > Soil and crops. Soil-plant relationships. Soil productivity
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Agriculture > Agriculture (General) > Fertilisers
Plant culture > Food crops
Plant culture > Field crops
Agriculture > By region or country > Australia > Queensland
Deposited On:14 Mar 2022 06:34
Last Modified:14 Mar 2022 06:34

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