The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch

The application of organic manure is a crucial agronomic practice for enhancing crop quality. This study aimed to elucidate the effects of organic manure and nitrogen fertilizers on the physicochemical properties of waxy maize starch. A field experiment was conducted with two cultivars (JKN768 and S...

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Main Authors: Fei Lou, Linxiao Liu, Wenxin Zhang, Pengtao Ji, Xiangling Li, Peijun Tao, Yuechen Zhang
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Agronomy
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Online Access:https://www.mdpi.com/2073-4395/15/7/1525
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author Fei Lou
Linxiao Liu
Wenxin Zhang
Pengtao Ji
Xiangling Li
Peijun Tao
Yuechen Zhang
author_facet Fei Lou
Linxiao Liu
Wenxin Zhang
Pengtao Ji
Xiangling Li
Peijun Tao
Yuechen Zhang
author_sort Fei Lou
collection DOAJ
description The application of organic manure is a crucial agronomic practice for enhancing crop quality. This study aimed to elucidate the effects of organic manure and nitrogen fertilizers on the physicochemical properties of waxy maize starch. A field experiment was conducted with two cultivars (JKN768 and SYN2) and six fertilization treatments: no nitrogen fertilizer application (T1); constant nitrogen fertilizer application (T2); and the replacement of 20% (T3), 40% (T4), 60% (T5), and 100% (T6) of nitrogen fertilizer with organic manure. The combined application of organic manure and nitrogen fertilizer improved the morphology and volume-weighted mean diameter of starch granules and reduced the relative crystallinity and enthalpy gelatinization of the starch. Compared with T2, the treatment in which 40% of the nitrogen fertilizer was replaced with organic manure (T4) significantly increased the volume-weighted mean diameter of starch granules in JKN768 and decreased it in SYN2, while it increased the content of rapidly digestible starch in JKN768 and SYN2 by 7.85% and 4.96%, respectively. Additionally, T4 decreased the relative crystallinity of starch in JKN768 and SYN2 by 7.12% and 3.72%, respectively, while it decreased the content of slowly digestible starch in JKN768 and SYN2 by 20% and 13.45%, respectively. The results of this study highlight that replacing 40% of nitrogen fertilizer with organic manure can significantly enhance the multi-scale structural characteristics of waxy maize starch, and they provide theoretical support for the improvement of waxy maize starch quality.
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spelling doaj-art-f4c3f4214cf64eea94bfa7bbd1ca5e9d2025-08-20T03:13:42ZengMDPI AGAgronomy2073-43952025-06-01157152510.3390/agronomy15071525The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize StarchFei Lou0Linxiao Liu1Wenxin Zhang2Pengtao Ji3Xiangling Li4Peijun Tao5Yuechen Zhang6Hebei Key Laboratory of Crop Stress Biology, College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066000, ChinaHebei Key Laboratory of Crop Stress Biology, College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066000, ChinaHebei Key Laboratory of Crop Stress Biology, College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066000, ChinaState Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding 071001, ChinaHebei Key Laboratory of Crop Stress Biology, College of Agronomy and Biotechnology, Hebei Normal University of Science & Technology, Qinhuangdao 066000, ChinaState Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding 071001, ChinaState Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding 071001, ChinaThe application of organic manure is a crucial agronomic practice for enhancing crop quality. This study aimed to elucidate the effects of organic manure and nitrogen fertilizers on the physicochemical properties of waxy maize starch. A field experiment was conducted with two cultivars (JKN768 and SYN2) and six fertilization treatments: no nitrogen fertilizer application (T1); constant nitrogen fertilizer application (T2); and the replacement of 20% (T3), 40% (T4), 60% (T5), and 100% (T6) of nitrogen fertilizer with organic manure. The combined application of organic manure and nitrogen fertilizer improved the morphology and volume-weighted mean diameter of starch granules and reduced the relative crystallinity and enthalpy gelatinization of the starch. Compared with T2, the treatment in which 40% of the nitrogen fertilizer was replaced with organic manure (T4) significantly increased the volume-weighted mean diameter of starch granules in JKN768 and decreased it in SYN2, while it increased the content of rapidly digestible starch in JKN768 and SYN2 by 7.85% and 4.96%, respectively. Additionally, T4 decreased the relative crystallinity of starch in JKN768 and SYN2 by 7.12% and 3.72%, respectively, while it decreased the content of slowly digestible starch in JKN768 and SYN2 by 20% and 13.45%, respectively. The results of this study highlight that replacing 40% of nitrogen fertilizer with organic manure can significantly enhance the multi-scale structural characteristics of waxy maize starch, and they provide theoretical support for the improvement of waxy maize starch quality.https://www.mdpi.com/2073-4395/15/7/1525multi-scale structuralpasting propertystarchorganic manurewaxy maize
spellingShingle Fei Lou
Linxiao Liu
Wenxin Zhang
Pengtao Ji
Xiangling Li
Peijun Tao
Yuechen Zhang
The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch
Agronomy
multi-scale structural
pasting property
starch
organic manure
waxy maize
title The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch
title_full The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch
title_fullStr The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch
title_full_unstemmed The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch
title_short The Effects of the Application of Organic Manure in Combination with Nitrogen Fertilizer on the Physicochemical Properties of Waxy Maize Starch
title_sort effects of the application of organic manure in combination with nitrogen fertilizer on the physicochemical properties of waxy maize starch
topic multi-scale structural
pasting property
starch
organic manure
waxy maize
url https://www.mdpi.com/2073-4395/15/7/1525
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