Oilseed flax cultivation: optimizing phosphorus use for enhanced growth and soil health

IF 4.1 2区生物学 Q1 PLANT SCIENCES

Frontiers in Plant Science Pub Date : 2024-09-11 DOI:10.3389/fpls.2024.1432875

Ning He, Fang Huang, Dingyu Luo, Zhiwei Liu, Mingming Han, Zhigang Zhao, Xian Sun

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引用次数: 0

Abstract

IntroductionOilseed flax (Linum usitatissimum L.) yields are phosphate (P) fertilizer-limited, especially in the temperate semiarid dryland regions of North China. However, there are limited studies on the effects of P-fertilizer inputs on plant growth and soil microorganisms in flax planting systems.MethodsTo address this gap, a field experiment was conducted with four treatments: no P addition and application of 40, 80, and 120 kg P ha-¹, respectively. The aim was to investigate the influence of various P fertilizer inputs on yield, plant dry matter, P use efficiency, as well as the population of soil arbuscular mycorrhizal fungi (AMF) and bacteria in dryland oilseed flax.ResultsOur results show that the P addition increased the dry matter, and the yield of oilseed increased by ~200% at 120 kg P ha-1 addition with inhibition on the growth of AMF hyphae. The moderate P supply (80 kg ha-1) was adequate for promoting P translocation, P use efficiency, and P recovery efficiency. Soil pH, available P, and available K significantly (p< 0.05) promoted the abundance of the dominant taxa (Acidobacteria_GP6, Sphingobacteria and Bacteroidetes). In addition, it is imperative to comprehend the mechanism of interaction between phosphorus-fertilizer inputs and microbiota in oilseed flax soil.DiscussionThis necessitates further research to quantify and optimize the moderate phosphorus supply, regulate soil microbes to ensure high phosphorus utilization, and ultimately establish a sustainable system for oilseed flax cultivation in the local area.

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油籽亚麻种植：优化磷的使用，促进生长和土壤健康

引言油用亚麻（Linum usitatissimum L.）的产量受磷肥限制，尤其是在华北温带半干旱旱地地区。为了填补这一空白，我们进行了一项田间试验，共设四个处理：不施磷肥和分别施用 40、80 和 120 kg P ha-¹。结果我们的结果表明，在添加 120 千克 P ha-1 的情况下，添加的 P 增加了干物质，油籽的产量增加了约 200%，同时抑制了 AMF 菌丝的生长。适量的 P 供给量（80 kg ha-1）足以促进 P 转化、P 利用效率和 P 回收效率。土壤 pH 值、可利用磷和可利用钾显著（p< 0.05）提高了优势类群（酸杆菌_GP6、鞘氨菌和类杆菌）的丰度。因此，有必要开展进一步的研究，以量化和优化适度的磷供应，调节土壤微生物以确保磷的高利用率，并最终在当地建立一个可持续的油籽亚麻种植系统。

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来源期刊

Frontiers in Plant Science PLANT SCIENCES-

CiteScore

7.30

自引率

14.30%

发文量

4844

审稿时长

14 weeks

期刊介绍： In an ever changing world, plant science is of the utmost importance for securing the future well-being of humankind. Plants provide oxygen, food, feed, fibers, and building materials. In addition, they are a diverse source of industrial and pharmaceutical chemicals. Plants are centrally important to the health of ecosystems, and their understanding is critical for learning how to manage and maintain a sustainable biosphere. Plant science is extremely interdisciplinary, reaching from agricultural science to paleobotany, and molecular physiology to ecology. It uses the latest developments in computer science, optics, molecular biology and genomics to address challenges in model systems, agricultural crops, and ecosystems. Plant science research inquires into the form, function, development, diversity, reproduction, evolution and uses of both higher and lower plants and their interactions with other organisms throughout the biosphere. Frontiers in Plant Science welcomes outstanding contributions in any field of plant science from basic to applied research, from organismal to molecular studies, from single plant analysis to studies of populations and whole ecosystems, and from molecular to biophysical to computational approaches. Frontiers in Plant Science publishes articles on the most outstanding discoveries across a wide research spectrum of Plant Science. The mission of Frontiers in Plant Science is to bring all relevant Plant Science areas together on a single platform.

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