Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application

The effect of nitrogen and zinc treatment on quality and yield was studied to provide a theoretical basis for generating high-quality and high-yielding foxtail millet. In the years 2021–2022, ‘Jingu 21’ was utilized as the test material in a split-plot design. The main plot was subjected to nitrogen...

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Main Authors: Genlan Han, Jiang Wang, Haiyan Zhao, Dan Wang, Yanyan Duan, Ruihua Han, Meng’en Nie, Lijie Zhao, Huiling Du
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Agriculture
Subjects:
Online Access:https://www.mdpi.com/2077-0472/13/9/1731
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author Genlan Han
Jiang Wang
Haiyan Zhao
Dan Wang
Yanyan Duan
Ruihua Han
Meng’en Nie
Lijie Zhao
Huiling Du
author_facet Genlan Han
Jiang Wang
Haiyan Zhao
Dan Wang
Yanyan Duan
Ruihua Han
Meng’en Nie
Lijie Zhao
Huiling Du
author_sort Genlan Han
collection DOAJ
description The effect of nitrogen and zinc treatment on quality and yield was studied to provide a theoretical basis for generating high-quality and high-yielding foxtail millet. In the years 2021–2022, ‘Jingu 21’ was utilized as the test material in a split-plot design. The main plot was subjected to nitrogen treatment, while the sub-plot was treated with zinc. An arrangement of random blocks was employed. Four levels of nitrogen application (0 kg/hm<sup>2</sup>, 120 kg/hm<sup>2</sup>, 180 kg/hm<sup>2</sup>, 240 kg/hm<sup>2</sup>) and three levels of zinc application (20 mg/L, 40 mg/L, 80 mg/L foliar spraying) were set, resulting in a total of twelve treatments. Each treatment was replicated three times, with each plot covering an area of 15 m<sup>2</sup>. (1) The findings indicated that the contents of crude fat and crude protein in foxtail millet increased initially and then decreased with the increase in nitrogen application concentration. Additionally, the protein components were found to be in the following order: gliadin > albumin > glutenin > globulin. (2) Adding an appropriate amount of nitrogen fertilizer under the same zinc level promoted the contents of amylose, total carotenoids, and flavonoids in millet to some extent. Over the course of two years, the content of flavonoids in millet was highest when treated with N180Zn40 (nitrogen 180 kg/hm<sup>2</sup>, zinc 40 mg/L), showing an increase of 50.14% and 58.67%, respectively, compared to the treatment of applying zinc fertilizer alone at the same zinc level. (3) The phytic acid content and phytic acid/zinc molar ratio exhibited a pattern of initially decreasing and then increasing with the rise in nitrogen and zinc concentrations. (4) The application of zinc fertilizer and increased nitrogen fertilizer for two consecutive years had a significant impact on the yield of millet. Additionally, the application of zinc fertilizer had a highly significant effect on both the ear weights and thousand-kernel weights of millet (<i>p</i> < 0.001). The results demonstrated a positive synergistic effect when nitrogen fertilizer and zinc fertilizer were applied together. This combination significantly improved millet yield and thousand-kernel weights, enhanced the nutritional quality, and increased the content of functional components. Additionally, it also improved the availability of zinc.
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spelling doaj.art-043326b3a0f74a4fa9778e2848b400d22023-11-19T09:06:32ZengMDPI AGAgriculture2077-04722023-08-01139173110.3390/agriculture13091731Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc ApplicationGenlan Han0Jiang Wang1Haiyan Zhao2Dan Wang3Yanyan Duan4Ruihua Han5Meng’en Nie6Lijie Zhao7Huiling Du8College of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Agriculture, Shanxi Agricultural University, Jinzhong 030801, ChinaDepartment of Basic Sciences, Shanxi Agricultural University, Jinzhong 030801, ChinaThe effect of nitrogen and zinc treatment on quality and yield was studied to provide a theoretical basis for generating high-quality and high-yielding foxtail millet. In the years 2021–2022, ‘Jingu 21’ was utilized as the test material in a split-plot design. The main plot was subjected to nitrogen treatment, while the sub-plot was treated with zinc. An arrangement of random blocks was employed. Four levels of nitrogen application (0 kg/hm<sup>2</sup>, 120 kg/hm<sup>2</sup>, 180 kg/hm<sup>2</sup>, 240 kg/hm<sup>2</sup>) and three levels of zinc application (20 mg/L, 40 mg/L, 80 mg/L foliar spraying) were set, resulting in a total of twelve treatments. Each treatment was replicated three times, with each plot covering an area of 15 m<sup>2</sup>. (1) The findings indicated that the contents of crude fat and crude protein in foxtail millet increased initially and then decreased with the increase in nitrogen application concentration. Additionally, the protein components were found to be in the following order: gliadin > albumin > glutenin > globulin. (2) Adding an appropriate amount of nitrogen fertilizer under the same zinc level promoted the contents of amylose, total carotenoids, and flavonoids in millet to some extent. Over the course of two years, the content of flavonoids in millet was highest when treated with N180Zn40 (nitrogen 180 kg/hm<sup>2</sup>, zinc 40 mg/L), showing an increase of 50.14% and 58.67%, respectively, compared to the treatment of applying zinc fertilizer alone at the same zinc level. (3) The phytic acid content and phytic acid/zinc molar ratio exhibited a pattern of initially decreasing and then increasing with the rise in nitrogen and zinc concentrations. (4) The application of zinc fertilizer and increased nitrogen fertilizer for two consecutive years had a significant impact on the yield of millet. Additionally, the application of zinc fertilizer had a highly significant effect on both the ear weights and thousand-kernel weights of millet (<i>p</i> < 0.001). The results demonstrated a positive synergistic effect when nitrogen fertilizer and zinc fertilizer were applied together. This combination significantly improved millet yield and thousand-kernel weights, enhanced the nutritional quality, and increased the content of functional components. Additionally, it also improved the availability of zinc.https://www.mdpi.com/2077-0472/13/9/1731foxtail milletnitrogen applicationzinc applicationqualityyield
spellingShingle Genlan Han
Jiang Wang
Haiyan Zhao
Dan Wang
Yanyan Duan
Ruihua Han
Meng’en Nie
Lijie Zhao
Huiling Du
Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application
Agriculture
foxtail millet
nitrogen application
zinc application
quality
yield
title Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application
title_full Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application
title_fullStr Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application
title_full_unstemmed Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application
title_short Response of Quality and Yield of Foxtail Millet to Nitrogen and Zinc Application
title_sort response of quality and yield of foxtail millet to nitrogen and zinc application
topic foxtail millet
nitrogen application
zinc application
quality
yield
url https://www.mdpi.com/2077-0472/13/9/1731
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