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Nitrogen budgeting for water quality improvement in pineapple production systems of south eastern Queensland, Australia.

Irvine-Brown, S. M., Abel, R. and Layden, I. A. (2022) Nitrogen budgeting for water quality improvement in pineapple production systems of south eastern Queensland, Australia. In: Proceedings of the 20th Agronomy Australia Conference, 2022, 6 - 10 February 2022, Toowoomba Qld.

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Abstract

The Glass House Mountains area was identified as a source of elevated nitrogen (N) which flows into the Pumicestone Passage and Moreton Bay. Elevated N causes decline in water quality and ecological function of these internationally important Ramsar wetlands, fisheries habitat, and recreational tourism natural amenities. Investigations into the origin of elevated aquatic N levels identified intensive horticultural activities were likely key contributors. A review of horticulture in the catchment was undertaken. The review determined that pineapple production systems in this area presented the largest opportunity for addressing aquatic N levels. Using a systems agronomy approach a partial N budget and review of nutrient management practices investigated nitrogen use efficiency (NUE). Findings identified N loading in waterways was impact by rainfall volume and frequency. Agronomic timing of N application to meet plant demand was imbalanced. Deep drainage is the predominant N loss pathway in major soil types of the catchment.

Item Type:Conference or Workshop Item (Paper)
Business groups:Horticulture and Forestry Science
Additional Information:Open access
Keywords:Nitrogen use efficiency, deep drainage, farming systems, water quality, Ananus comosus
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) > Improvement, reclamation, fertilisation, irrigation etc., of lands (Melioration)
Agriculture > Agriculture (General) > Fertilisers
Plant culture > Food crops
Plant culture > Fruit and fruit culture > Culture of individual fruits or types of fruit > Pineapple
Agriculture > By region or country > Australia > Queensland
Deposited On:14 Mar 2022 06:22
Last Modified:14 Mar 2022 06:22

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