Synthesis, characterization and evaluation of novel manganese nanoclay polymer composite and nano-MnO2 in wheat

IF 2.6 3区农林科学 Q1 AGRONOMY

Journal of Plant Nutrition and Soil Science Pub Date : 2024-01-24 DOI:10.1002/jpln.202300159

Rakesh Kumar, Arun Kumar Jha, Nintu Mandal, Satdev, Shruti Kumari

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引用次数: 0

Abstract

Background

Manganese (Mn) deficiency due to nutrient mining by high yielding cereal–cereal cropping patterns and forgetfulness of Mn fertilizer applications becomes potential challenge in crop production.

Aim

Nano-enabled Mn fertilizers can be safer and more nutrient efficient than conventional Mn fertilizers (nutrient use efficiency ≈ 1%–3%). However, studies about nano-Mn fertilizer synthesis and their behaviour in soil–plant system are rare.

Methods

In this study, two novel nano-Mn fertilizers, that is nano-MnO₂ (NMO) and manganese nanoclay polymer composites (Mn-NCPC), were synthesized, characterized (dynamic light scattering, X-ray diffraction, Scanning electron microscopic and energy-dispersive X-ray, Fourier transform infrared spectroscopy etc.) and investigated for their impact on growth, yield and nutrient acquisition by wheat crop (Triticum aestivum L., variety HD-2967) in a pot culture experiment. Treatment comprised 25%, 50% and 100% of recommended dose of Mn (RDMn) through NMO along with 100% RDMn through MnSO₄·H₂O (MS). Effect of exposure route was also investigated using foliar spray of NMO at tillering stage. Mn-NCPC was found to be most efficient Mn fertilizer in terms of yield, Mn uptake and use efficiency by wheat crop.

Results

Nano-sized formulations improved the solubility of Mn in soil due to its higher active surface area (NMO) and slow-release behaviour (Mn-NCPC); thus, minimal losses happened due to the fixing of Mn in oxide/hydroxide forms. Application of 25% RDMn through NMO fertilizers maintained equitant diethylenetriamine pentaacetate Mn content to 100% RDMn through MnSO₄·H₂O. Mn-NCPC stimulated the soil enzymatic activities, namely dehydrogenase, acid–alkaline phosphatase activities. Mn-NCPC and NMO at 100% RDMn recorded 3.51% and 5.20% improvement in grain yield, respectively, when compared to MnSO₄·H₂O 100%.

Conclusions

Mn fertilizer doses can be reduced up to 25% of RDMn when applied through NMO or Mn-NCPC fertilizers. However, effects of Mn-NCPC and NMO need to be critically evaluated in long-term field experiments in various cropping systems especially under cereal–cereal sequences for economic profitability and wide-scale farmer's adaptability.

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高产谷物-谷物种植模式对养分的消耗以及忘记施用锰肥导致锰（Mn）缺乏，成为作物生产中的潜在挑战。

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来源期刊

Journal of Plant Nutrition and Soil Science 农林科学-农艺学

CiteScore

4.70

自引率

8.00%

发文量

审稿时长

8-16 weeks

期刊介绍： Established in 1922, the Journal of Plant Nutrition and Soil Science (JPNSS) is an international peer-reviewed journal devoted to cover the entire spectrum of plant nutrition and soil science from different scale units, e.g. agroecosystem to natural systems. With its wide scope and focus on soil-plant interactions, JPNSS is one of the leading journals on this topic. Articles in JPNSS include reviews, high-standard original papers, and short communications and represent challenging research of international significance. The Journal of Plant Nutrition and Soil Science is one of the world’s oldest journals. You can trust in a peer-reviewed journal that has been established in the plant and soil science community for almost 100 years. Journal of Plant Nutrition and Soil Science (ISSN 1436-8730) is published in six volumes per year, by the German Societies of Plant Nutrition (DGP) and Soil Science (DBG). Furthermore, the Journal of Plant Nutrition and Soil Science (JPNSS) is a Cooperating Journal of the International Union of Soil Science (IUSS). The journal is produced by Wiley-VCH. Topical Divisions of the Journal of Plant Nutrition and Soil Science that are receiving increasing attention are: JPNSS – Topical Divisions Special timely focus in interdisciplinarity: - sustainability & critical zone science. Soil-Plant Interactions: - rhizosphere science & soil ecology - pollutant cycling & plant-soil protection - land use & climate change. Soil Science: - soil chemistry & soil physics - soil biology & biogeochemistry - soil genesis & mineralogy. Plant Nutrition: - plant nutritional physiology - nutrient dynamics & soil fertility - ecophysiological aspects of plant nutrition.