纳米营养物叶面施用对旱地小谷子产量、品质和养分效率的影响

IF 2.6 3区农林科学 Q1 AGRONOMY

Journal of Plant Nutrition and Soil Science Pub Date : 2025-02-13 DOI:10.1002/jpln.202300294

Ziya Ul Huq, B. G. Vasanthi, Mudalagiriyappa, M. A. Sneha, M. C. Harish, K. Devaraja, H. S. Latha, K. A. Gopinath, V. Visha Kumari, Tarunendu Singh, M. R. Krupashankar, Vinod Kumar Singh

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引用次数: 0

摘要

背景氮和锌是决定作物产量的最关键的宏量和微量元素。叶面施用这些营养物质是一种经过验证的技术，可以减轻作物生长任何阶段的急性缺乏症。近年来纳米技术的发展，如纳米尿素和纳米锌与常规肥料联合施用，提高了作物的生长和养分利用效率。目的研究纳米营养液叶面喷施对谷子生长、产量、质、量性状及养分利用效率的影响。方法以谷子为试验作物，于2021年秋季在印度科学院旱地农业研究中心（AICRP）、UAS、GKVK、班加罗尔进行试验。它包括12个不同氮水平的处理，结合在35和55 DAS的叶面施用纳米营养物。结果叶面施用纳米氮和纳米锌，配合100% RDN +推荐PK，显著提高了谷子的生长、产量和养分利用效率。施用100% RDF +叶面喷施纳米氮和纳米锌，籽粒产量最高（3486 kg ha - 1），秸秆产量最高（4810 kg ha - 1），显著优于单纯施用常规肥料。该处理还提高了籽粒穗数（6.53）、穗长（6.95 cm）和单株干重（146.80 g）等性状。抗氧化酶（过氧化氢酶和过氧化物酶）活性也有显著提高，籽粒粗蛋白质（8.88%）、粗纤维（2.90%）、灰分（2.40%）和脂肪（1.46%）含量较高。此外，该处理还记录了最高的经济回报，总回报为108,192 ha - 1卢比，净回报为79,579 ha - 1卢比，使其成为旱地条件下种植指谷子最有效和最有益的策略。结论叶面施用75% RDN +推荐PK的纳米营养物可提高指粟的生产力和氮肥利用效率，且与单独施用常规肥料相比具有较高的成本效益。

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Nano Nutrient Foliar Application: Impacts on Yield, Quality, and Nutrient Efficiency in Dryland Finger Millet

Background

Nitrogen and zinc are the most critical macro- and micronutrients that significantly determine the crop productivity. Foliar application of these nutrients is a proven technology to abate acute deficiency at any crop-growing stage. Recent developments in the field of nanotechnology such as spraying of nano-urea and nano zinc in combination with conventional fertilizers enhance crop growth and nutrient use efficiency (NUE) of crop.

Aim

This investigation assessed the impact of nano nutrient foliar sprays on the growth, yield, qualitative and quantitative traits, and nutrient utilization efficiency of finger millet.

Methods

Experiment was conducted at AICRP for Dryland Agriculture, UAS, GKVK, Bengaluru during Kharif 2021 with finger millet as test crop. It comprises 12 treatments with different levels of nitrogen in combination with foliar application of nano nutrients at 35 and 55 DAS.

Results

Foliar application of nano-N and nano-Zn along with 100% RDN + recommended PK in finger millet significantly enhanced the growth, yield, and nutrient utilization efficiency of finger millet. Application of 100% RDF + foliar spray of nano-N and nano-Zn recorded the highest grain yield (3486 kg ha⁻¹) and straw yield (4810 kg ha⁻¹), significantly outperforming treatments with conventional fertilizers alone. This treatment also improved the qualitative attributes such as the number of ear heads (6.53), length of ear heads (6.95 cm), and dry weight per plant (146.80 g). Similar was the trend with antioxidant enzymes, namely, catalase and peroxidase activity, proximate composition of finger millet grain with higher crude protein (8.88%), crude fiber (2.90%), ash (2.40%), and fat (1.46%). Moreover, this treatment also recorded the highest economic returns, with gross returns of Rs. 108,192 ha⁻¹ and net returns of Rs. 79,579 ha⁻¹, making it the most effective and beneficial strategy for finger millet cultivation under dryland conditions.

Conclusion

The productivity and NUE of finger millet were higher with foliar application of nano nutrients along with 75% RDN + recommended PK and were found to be cost-effective compared to conventional fertilizers alone.

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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.