Diagnosis of nutrient balances for fertilizer recommendations in cranberry crops

诊断蔓越莓作物的养分平衡以提供肥料建议

• 批准号: 469358-2014
• 负责人: Gumiere, Silvio
• 金额: $ 3.62万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=652662
• 关键词: Diagnosis; nutrient; balances; fertilizer; recommendations

The cranberry industry has large economic impact in Quebec with annual revenues of 100 M $ and 1200 jobs created. The industry developed rapidly over the past 40 yr following R&D projects in engineering, mechanics, pest management, irrigation and berry transformation. As berry production increased, the North American market became more competitive and the EU market opened. With more stringent requirements, higher fertilizer costs and environmental regulation, the industry is facing new challenges in nutrient management and the sustainable production of high-quality berries. Nutrient management is still based on expert knowledge and a handful of past field experiments that often returned low to medium berry yields. Our objective is to calibrate and validate nutrient diagnosis and recommendation tailored to the Quebec cranberry production at high yield level. We will establish four permanent sites where N, P, K, Mg, B and Cu additions will be varied, assuming that other nutrients are in adequate supply (36 plots per site). We will collect soil and plant samples and measure yield components (# uprights, # flowers, # flowering uprights, berry yield and quality - anthocyanin, firmness, sugar content). Time change in tissue composition will be monitored in fields near trials. Litter quality will be analyzed using FT-NIR calibration. Tissue and soil models will be developed from meta-analysis using global and local metadata and novel nutrient balance concepts. Tissue, soil and yield survey data will be acquired for comparison with tissue and soil nutrient models. Results will be recorded in the MAPAQ metafile for use by the whole cranberry community.

蔓越莓产业在魁北克省具有巨大的经济影响，年收入达 1 亿美元，创造了 1200 个就业岗位。过去 40 年来，随着工程、机械、病虫害防治、灌溉和浆果转化等领域的研发项目，该行业迅速发展。随着浆果产量的增加，北美市场的竞争变得更加激烈，欧盟市场也开放了。随着更严格的要求、更高的化肥成本和环境监管，该行业在养分管理和高质量浆果的可持续生产方面面临着新的挑战。养分管理仍然基于专家知识和过去的一些田间实验，这些实验通常会带来低到中等的浆果产量。我们的目标是校准和验证针对魁北克蔓越莓高产量生产量身定制的营养诊断和建议。我们将建立四个永久地点，假设其他养分供应充足，其中氮、磷、钾、镁、硼和铜的添加量将有所不同（每个地点 36 个地块）。我们将收集土壤和植物样本并测量产量组成部分（＃直立物，＃花，＃开花直立物，浆果产量和质量 - 花青素，硬度，糖含量）。将在试验附近的现场监测组织成分的时间变化。将使用 FT-NIR 校准来分析垫料质量。组织和土壤模型将通过使用全球和本地元数据以及新颖的养分平衡概念的荟萃分析来开发。将获取组织、土壤和产量调查数据，以便与组织和土壤养分模型进行比较。结果将记录在 MAPAQ 图元文件中，供整个蔓越莓社区使用。