Plant growth regulators (PGRs) are described in the literature as having a significant role in securing crop management of modern agriculture in conditions of abiotic and biotic stressors. A joint field experiment was carried out to assess the role of seaweed-based extracts in pear trees and to test the “less for more” theory, which consists of getting more and better agricultural produce using fewer innovative inputs. The trials took place on two production seasons (from March till September 2018–2019) and the selected case study was on a pear orchard (Pyrus communis L. cv. Abate Fètel) in Emilia Romagna (Italy) by Fondazione Navarra and Timac Agro Italia S.p.A. Results demonstrate that, depending on the yearly climate conditions, it was possible to substantially reduce the primary nutrients by 35–46% and total fertilisation units applied by 13% and significantly improve quantitative and qualitative production indicators (average weight of fruits (5%) and total yield (19–55%)). Results also confirm a positive correlation between plant growth regulators and agronomic efficiency of pears which increased between five and nine times compared to the conventional nutrition programme. These outcomes constitute scientific evidence for decision making in farm management.

中文翻译：

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海藻提取物评估：可持续农业的创新

文献中描述了植物生长调节剂（PGR），在非生物和生物胁迫条件下，在确保现代农业作物管理方面具有重要作用。开展了一项联合田间试验，以评估海藻提取物在梨树中的作用，并测试“少花钱买多一点”的理论，该理论包括以更少的创新投入获得更多，更好的农产品。试验在两个生产季节（从2018年3月至2018年9月）进行，选定的案例研究在梨园（Pyrus communis）L.简历 Fondazione Navarra和Timac Agro Italia SpA在意大利艾米利亚-罗马涅（意大利）的AbateFètel结果表明，根据每年的气候条件，基本营养素可大量减少35-46％，总施肥单位减少13％并大大改善了定量和定性生产指标（平均水果重量（5％）和总产量（19-55％））。结果还证实了植物生长调节剂与梨的农学效率之间呈正相关，与常规营养计划相比，梨的农艺效率提高了五至九倍。这些结果构成了农场管理决策的科学依据。