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DRIS norms and limiting nutrients in banana cultivation in the South of Ecuador
Journal of Plant Nutrition ( IF 2.1 ) Pub Date : 2020-07-13 , DOI: 10.1080/01904167.2020.1793183
Diego Villaseñor 1, 2 , Renato de Mello Prado 1 , Gilmara Pereira da Silva 3 , Manuel Carrillo 4 , Wuellins Durango 4
Affiliation  

Abstract Foliar analysis is an effective method to diagnose the nutritional status of plants. However, the mineral concentration in foliar tissue has traditionally been evaluated by assessing the activity of each element, without considering the interactions between them. To address this, dual interactions were calculated using the Diagnosis and Recommendation Integrated System (DRIS) to identify which crop nutrients are most influential in nutrient imbalances and which are the most limiting nutrients for the nutritional status of banana crops in Ecuador. To achieve this, a regional survey of the nutritional status and its productivity levels was conducted for 188 different sites during the crop season in 2017–2018, involving banana cultivars ‘Vallery’ and ‘Williams’, from the Cavendish subgroup. The DRIS calculation method was combined with Beaufils and Jones functions. From the initial 188 foliar samples, 83 samples (representing 44% of the population) were considered to represent the high-yield reference population, with yields of 38–60 t ha−1. The DRIS method defined the mean nutritional balance index, which was not found to be statistically correlated (p > 0.05) with productivity, revealing that there was no significant association with the nutritional status of the plants. Specific DRIS norms were obtained and indicated that deficiencies in K, N, Ca, and Fe, and excesses in Mn, B, Cl, Zn, S, Cu, and Mg were the most limiting nutrients for banana cultivars in the south of Ecuador.

中文翻译:

厄瓜多尔南部香蕉种植中的 DRIS 规范和限制营养素

摘要 叶面分析是诊断植物营养状况的有效方法。然而,传统上通过评估每种元素的活性来评估叶组织中的矿物质浓度,而不考虑它们之间的相互作用。为了解决这个问题,使用诊断和推荐集成系统 (DRIS) 计算了双重相互作用,以确定哪些作物养分对养分失衡影响最大,哪些是厄瓜多尔香蕉作物营养状况的限制性养分。为实现这一目标,在 2017-2018 年作物季节期间,对 188 个不同地点的营养状况及其生产力水平进行了区域调查,涉及来自卡文迪什亚群的香蕉品种“Vallery”和“Williams”。DRIS 计算方法结合 Beaufils 和 Jones 函数。从最初的 188 个叶样本中,83 个样本(代表总种群的 44%)被认为代表高产参考种群,产量为 38-60 t ha-1。DRIS 方法定义了平均营养平衡指数,发现该指数与生产力没有统计学相关性(p > 0.05),表明与植物的营养状况没有显着关联。获得了特定的 DRIS 规范,并表明 K、N、Ca 和 Fe 的缺乏以及 Mn、B、Cl、Zn、S、Cu 和 Mg 的过量是厄瓜多尔南部香蕉品种最受限制的营养成分。83 个样品(占总种群的 44%)被认为代表高产参考种群,产量为 38-60 t ha-1。DRIS 方法定义了平均营养平衡指数,发现该指数与生产力没有统计学相关性(p > 0.05),表明与植物的营养状况没有显着关联。获得了特定的 DRIS 规范,并表明 K、N、Ca 和 Fe 的缺乏以及 Mn、B、Cl、Zn、S、Cu 和 Mg 的过量是厄瓜多尔南部香蕉品种最受限制的营养成分。83 个样品(占总种群的 44%)被认为代表高产参考种群,产量为 38-60 t ha-1。DRIS 方法定义了平均营养平衡指数,发现该指数与生产力没有统计学相关性(p > 0.05),表明与植物的营养状况没有显着关联。获得了特定的 DRIS 规范,并表明 K、N、Ca 和 Fe 的缺乏以及 Mn、B、Cl、Zn、S、Cu 和 Mg 的过量是厄瓜多尔南部香蕉品种最受限制的营养成分。表明与植物的营养状况没有显着关联。获得了特定的 DRIS 规范,并表明 K、N、Ca 和 Fe 的缺乏以及 Mn、B、Cl、Zn、S、Cu 和 Mg 的过量是厄瓜多尔南部香蕉品种最受限制的营养成分。表明与植物的营养状况没有显着关联。获得了特定的 DRIS 规范,并表明 K、N、Ca 和 Fe 的缺乏以及 Mn、B、Cl、Zn、S、Cu 和 Mg 的过量是厄瓜多尔南部香蕉品种最受限制的营养成分。
更新日期:2020-07-13
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