Soil physicochemical characteristics and leaf nutrient contents on banana farms of North Queensland, Australia

IF 1.8 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Crop & Pasture Science Pub Date : 2023-02-20 DOI:10.1071/CP22306
R. Orr, T. Northfield, A. Pattison, P. N. Nelson
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Abstract

Abstract Context. Banana production in Australia is in three primary sub-regions within tropical North Queensland and the industry faces a variety of challenges including costs of production, disease and pests, and environmental impacts. The range of soil characteristics and banana leaf nutrient status on banana farms has not previously been systematically described. This knowledge gap makes it difficult to adapt research, management recommendations, and regulations to the needs of the three primary growing sub-regions. Aims. In this work, we aimed to identify key soil factors that differentiate growing sub-regions, and provide context for future research and industry regulation. Methods. We characterised soil and banana leaf samples from 28 banana farms on soil types accounting for >85% of Australia’s banana production. Key results. Variation in soil properties and leaf nutrient concentrations were driven largely by site- (principal component 1 in both cases) and management-related variables (principal component 2 in both cases). Management-related foliar nutrient concentrations did not differ between regions despite differences in the associated soil variables. The most important site characteristics appeared to be soil parent material and climate. The Mareeba sub-region has basaltic soils, low rainfall and temperature, whereas the other two sub-regions are hotter, wetter and have a variety of soil parent materials. Leaf nitrogen concentrations were mostly below the regulated limit for additional nitrogen fertiliser application. Implications. Our findings can facilitate sub-region-specific site selection for research, extension, and monitoring and more targeted regulation of banana production- and environment-related issues.
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澳大利亚北昆士兰香蕉农场土壤理化特征及叶片养分含量
抽象的上下文。澳大利亚的香蕉生产主要集中在热带北昆士兰的三个主要分区域,该行业面临各种挑战,包括生产成本、病虫害和环境影响。以前没有系统地描述过香蕉农场的土壤特征和香蕉叶营养状况的范围。这种知识差距使得难以根据三个主要增长分区域的需要调整研究、管理建议和法规。目标在这项工作中,我们旨在确定区分生长子区域的关键土壤因子,并为未来的研究和行业监管提供背景。方法。我们对28个香蕉农场的土壤和香蕉叶样本进行了表征,这些土壤类型占澳大利亚香蕉产量的85%。关键的结果。土壤性质和叶片养分浓度的变化在很大程度上是由场地(两种情况下的主成分1)和管理相关变量(两种情况下的主成分2)驱动的。尽管相关土壤变量存在差异,但与管理相关的叶面养分浓度在不同地区之间没有差异。最重要的立地特征是土壤母质和气候。Mareeba亚区为玄武岩质土壤,降雨少,温度低,而其他两个亚区较热、较湿,土壤母质多样。叶片氮浓度大多低于氮肥补充施用的规定限值。的影响。我们的研究结果可以为香蕉生产和环境相关问题的研究、推广和监测以及更有针对性的监管提供便利。
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来源期刊
Crop & Pasture Science
Crop & Pasture Science AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
4.20
自引率
15.80%
发文量
111
审稿时长
3 months
期刊介绍: Crop and Pasture Science (formerly known as Australian Journal of Agricultural Research) is an international journal publishing outcomes of strategic research in crop and pasture sciences and the sustainability of farming systems. The primary focus is broad-scale cereals, grain legumes, oilseeds and pastures. Articles are encouraged that advance understanding in plant-based agricultural systems through the use of well-defined and original aims designed to test a hypothesis, innovative and rigorous experimental design, and strong interpretation. The journal embraces experimental approaches from molecular level to whole systems, and the research must present novel findings and progress the science of agriculture. Crop and Pasture Science is read by agricultural scientists and plant biologists, industry, administrators, policy-makers, and others with an interest in the challenges and opportunities facing world agricultural production. Crop and Pasture Science is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.
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