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Ploughing on regardless?

不顾一切继续耕耘？

基本信息

批准号：
NE/N019253/1
负责人：
Jacqueline Louise Stroud
金额：
$ 43.12万
依托单位：
Rothamsted Research
依托单位国家：
英国
项目类别：
Fellowship
财政年份：
2016
资助国家：
英国
起止时间：
2016 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FN019253%2F1
关键词：
Ploughing regardless

项目摘要

Earthworm populations have collapsed under conventional management practices in agriculture. This is linked to a combination of intensive tillage (habitat disturbance), poor organic matter management (food supply interruption) and agro-chemical exposure (low fertility). This is a problem because earthworms are soil ecosystem engineers. Earthworms provide many soil ecosystem services including improving inorganic nutrient bioavailability, reduce Take-all and Fusarium disease incidence and severity, improving soil water balances, carbon sequestration, disperse beneficial soil bacteria and promote legume nodulation. Soils are vital to humankind, but are being rapidly degraded. The UK agri-tech strategy has identified that soil degradation and biodiversity loss threatens soil security. Thus, restoring and managing earthworm resources are vital to soil security in agriculture. This 'Ploughing on regardless?' fellowship has two goals. Firstly to test a model agro-ecosystem based on a clover-residue-wheat management strategy to rapidly rejuvenate and maintain elevated earthworm populations. The Rothamsted long term experiment trials will be used to inform crop rotations and local minimum tillage farmers network to inform on seasonal changes to earthworm abundances. A novel bio-indicator technique based on midden counting will be developed and used for this goal. Secondly, investigations into combinations of treatments that amplify earthworm benefits to soil security and soil use in agriculture will be performed. These include wheat-cultivar earthworm interactions, earthworm mediated below-ground interactions and earthworm mediated below-ground/above ground interactions to provide a holistic understanding of minimum tillage agro-ecosystems. These field and laboratory study outcomes will be used to provide guidance on earthworm-centred, minimum tillage farming practices. Further, provide a scientific understanding of how earthworm, AMF and fertiliser interacts to deliver below-ground ecosystem services, and the role earthworms can play in residue incorporation that affect above-ground interactions.

在农业的传统管理做法下，蚯蚓的数量已经锐减。这与密集耕作（生境干扰）、有机物管理不善（粮食供应中断）和农业化学品暴露（低生育率）相结合有关。这是一个问题，因为蚯蚓是土壤生态系统工程师。蚯蚓提供了许多土壤生态系统服务，包括提高无机养分的生物有效性，降低全蚀病和镰刀菌病的发病率和严重程度，改善土壤水分平衡，固碳，分散有益的土壤细菌和促进豆类作物生长。土壤对人类至关重要，但正在迅速退化。联合王国的农业技术战略已经确定，土壤退化和生物多样性丧失威胁着土壤安全。因此，恢复和管理土壤资源对农业土壤安全至关重要。这是"不顾一切"吗？"联谊会有两个目标。首先，测试一个基于苜蓿-秸秆-小麦管理策略的农业生态系统模型，以快速恢复和维持高水平的杂草种群。Rothamsted长期试验将用于通知作物轮作和当地最低限度耕作农民网络，以通知作物丰度的季节性变化。一种新的生物指示剂技术的基础上，midden计数将开发和用于这一目标。第二，将对扩大土壤安全和农业土壤利用的生态效益的处理组合进行调查。这些包括小麦-栽培品种间的交互作用、小麦-栽培品种间的交互作用以及小麦-栽培品种间的交互作用，以提供对少耕农业生态系统的全面理解。这些实地和实验室研究成果将用于指导以蚯蚓为中心的最少耕作耕作方法。此外，提供了一个科学的理解，蚯蚓，AMF和肥料如何相互作用，以提供地下生态系统服务，以及蚯蚓在影响地上相互作用的残留物结合中可以发挥的作用。