作物对氮磷胁迫的反应:理论、实验证据、机制和模型。综述

IF 6.4 1区 农林科学 Q1 AGRONOMY
Mounir Seghouani, Matthieu Nicolas Bravin, Alain Mollier
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引用次数: 0

摘要

作物需要充足的矿物质营养,以确保最佳的生长和产量。氮(N)和磷(P)是作物生长所必需的两大元素。然而,农业生态系统中经常出现氮磷平衡的情况。因此,我们在这些条件下优化作物生产的能力取决于我们分析和预测作物对叠加反应的能力。传统上,农学家们依靠最小值定律(LM)来管理偶合情况。该定律指出,作物生长受制于最限制因素。与此相反,多重限制假说(MLH)则认为,作物可以通过平衡资源分配,以最佳的折衷方式适应环境,从而最大限度地提高作物的生长。这两种假说导致了截然不同的生长响应模式。本综述旨在通过对照概念框架评估实验结果,确定作物对氮磷叠加的反应模式,并报告这种相互作用所涉及的主要机制。最后,介绍了处理氮磷胶合的现有作物模型清单,并提出了可能的改进方法。这篇综述使我们得以:(1)提醒人们注意已发表的用于划分沉降类型的理论;(2)强调大量作物大多表现出 MLH 反应模式的事实;(3)报告作物反应模式的变化与气候的变化有关;(4)确定可能参与植物适应氮-磷沉降的多种机制、(5) 指出不同机制之间的相互作用导致了难以通过实验理解的复杂反应,(6) 报告很少有模型能处理氮-磷胁迫,大多数模型依赖于最小值定律,(7) 建议改进模型形式化的可行方法,以更好地模拟作物在氮-磷胁迫下的反应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Crop response to nitrogen-phosphorus colimitation: theory, experimental evidences, mechanisms, and models. A review

Crop response to nitrogen-phosphorus colimitation: theory, experimental evidences, mechanisms, and models. A review

Crops need adequate mineral nutrition to ensure optimal growth and yield. Nitrogen (N) and phosphorus (P) are two major elements that are essential for crop growth. However, situations of N-P colimitation are frequent in agroecosystems. Hence, our ability to optimize crop production under these conditions depends on our ability to analyze and predict the response of crops to colimitation. Traditionally, agronomists rely on the law of the minimum (LM) to manage colimitation situations. This law states that crop growth is constrained by the most limiting element. In contrast, the multiple limitation hypothesis (MLH) argues that crops can adapt by balancing their resource allocation with the best compromise to maximize their growth. These two hypotheses result in contrasting growth response patterns. The aim of the present review is to identify the crop response pattern to N-P colimitation through an assessment of experimental results against a conceptual framework and to report the main mechanism involved in this interaction. Finally, an inventory of existing crop models handling N-P colimitation is presented and possible ways of improvement are proposed. This review allowed us to (1) remind of the published theories used to classify colimitation types, (2) highlight the fact that a large range of crops mostly showed MLH-response patterns, (3) report that the variability in crop response patterns is linked to pedoclimatic variation, (4) identify multiple mechanisms that may be involved in plant adaptation to N-P colimitation, (5) suggest that the interplay between the different mechanisms results in complex responses that are difficult to understand experimentally, (6) report that few models handle N-P colimitation and that most of them rely on the law of the minimum, and (7) recommend possible ways to improve model formalization for a better simulation of crop responses under N-P colimitation.

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来源期刊
Agronomy for Sustainable Development
Agronomy for Sustainable Development 农林科学-农艺学
CiteScore
10.70
自引率
8.20%
发文量
108
审稿时长
3 months
期刊介绍: Agronomy for Sustainable Development (ASD) is a peer-reviewed scientific journal of international scope, dedicated to publishing original research articles, review articles, and meta-analyses aimed at improving sustainability in agricultural and food systems. The journal serves as a bridge between agronomy, cropping, and farming system research and various other disciplines including ecology, genetics, economics, and social sciences. ASD encourages studies in agroecology, participatory research, and interdisciplinary approaches, with a focus on systems thinking applied at different scales from field to global levels. Research articles published in ASD should present significant scientific advancements compared to existing knowledge, within an international context. Review articles should critically evaluate emerging topics, and opinion papers may also be submitted as reviews. Meta-analysis articles should provide clear contributions to resolving widely debated scientific questions.
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