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Arbuscular mycorrhizae play key role for mungbeans in low phosphorus soil

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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
Live Archive:14 Mar 2022 06:34
Last Modified:14 Mar 2022 06:34

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