中国稻米

中国稻米 ›› 2023, Vol. 29 ›› Issue (5): 89-92.DOI: 10.3969/j.issn.1006-8082.2023.05.016

• 专论与研究 • 上一篇    下一篇

石膏用量对滨海盐碱地水稻产量和品质的影响

陈雨琼(), 孟轶, 徐志恒, 都晗萌, 戴其根, 张洪程, 廖萍()   

  1. 江苏省作物栽培生理重点实验室/江苏省作物遗传生理重点实验室/江苏省粮食作物现代产业技术协同创新中心/农业农村部盐碱土改良与利用（滨海盐碱地）重点实验室/扬州大学 农学院/水稻产业工程技术研究院，江苏 扬州 225009
  • 收稿日期:2023-07-31 出版日期:2023-09-20 发布日期:2023-09-15
  • 通讯作者: * p.liao@yzu.edu.cn
  • 作者简介:第一作者:chenyq0518@163.com
  • 基金资助:
    江苏省青年科学基金(SBK2023043060);中国博士后科学基金面上项目(2022M722702);江苏省碳达峰碳中和科技创新专项资金(BE2022304);江苏高校优势学科建设工程资助项目(PAPD)

Effects of Gypsum Application Rate on Yield and Quality of Rice in Coastal Saline-alkali Soils

CHEN Yuqiong(), MENG Yi, XU Zhiheng, DU Hanmeng, DAI Qigen, ZHANG Hongcheng, LIAO Ping()   

  1. Jiangsu Key Laboratory of Crop Cultivation and Physiology/ Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/ Key Laboratory of Saline-Alkali Soil Reclamation and Utilization in Coastal Areas, Ministry of Agriculture and Rural Affairs/College of Agriculture/Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
  • Received:2023-07-31 Online:2023-09-20 Published:2023-09-15
  • Contact: * p.liao@yzu.edu.cn
  • About author:1st author: chenyq0518@163.com

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摘要：

石膏是一种常用的盐碱稻田土壤化学改良剂，可促进水稻丰产，但施用石膏对稻米品质的影响研究较少。本试验以江苏省大面积推广的常规稻品种南粳9108为供试材料，在含盐量为0.3%左右的滨海盐碱稻田探究不同石膏施用量（0 t/hm2, 3 t/hm2, 6 t/hm2和12 t/hm2）对水稻产量和品质的影响。结果表明，与不施石膏相比，施石膏显著提高了有效穗数与每穗粒数，进而增加了水稻产量（11.8%~30.6%），且产量随石膏施用量的增加而增加。在稻米加工品质方面，施石膏显著提高了精米率（1.5%~2.7%）和整精米率（2.2%~5.8%），对糙米率影响不显著；在外观品质方面，施石膏显著降低了垩白度（-24.0%~-16.2%）和垩白粒率（-43.1%~-32.6%），对长宽比无显著影响；在蒸煮食味特性方面，施石膏显著提高了胶稠度（7.6%~26.2%），降低了直链淀粉含量（-19.4%~-3.6%），而对蛋白质含量影响不显著，稻米的食味值随石膏施用量的增加而显著提升（6.1%~15.4%）。此外，施石膏显著改善了稻米糊化特性，崩解值随石膏施用量的增加而增加，消减值随石膏施用量的增加而降低。研究表明，施用石膏可协同提高滨海盐碱地水稻产量和品质，且改善效果随石膏施用量的增加而增加。

关键词: 水稻, 石膏, 产量, 稻米品质, 滨海盐碱地

Abstract:

Gypsum can be used to improve saline-alkali soil fertilizer and promote rice production, but its effect on rice quality remains unclear. Nanjing 9108, a conventional rice variety widely used in Jiangsu Province, was used as experimental material to investigate the effects of gypsum application at four levels (0 t/hm2, 3 t/hm2, 6 t/hm2 and 12 t/hm2) on yield and quality of rice in coastal saline-alkali soils with salt content of about 0.3%. The results showed that compared to not applying gypsum, applying gypsum significantly increased the effective panicle number and grain number per panicle, thereby increasing the yield(11.8%~30.6%), the yield increased with the increase of gypsum application rate. In the aspect of processing quality, applying gyspum significantly increased the milled rice rate (1.5%~2.7%) and the head rice rate (2.2%~5.8%), but had no sinnificant effect on the brown rice rate. In the aspect of appearance quality, applying gypsum significantly reduced chalkiness degree (-24.0%~-16.2%) and chalkiness percentage (-43.1%~-32.6%), but had no significant effect on length/width ratio. In terms of cooking and eating characteristics, applying gypsum significantly increased gel consistency (7.6%~26.2%) and decreased amylose content (-19.4%~-3.6%), but had no significant effect on protein content. The taste value (6.1%~15.4%) of rice increased significantly with the increase of gypsum application rate. In addition, applying gypsum significantly improved the gelatinization characteristics of rice. The collapse value increased with the increase of the amount of gypsum applied, while the reduction value decreased with the increase of applying gypsum applied. In conclusion, applying gypsum can simultaneously improve rice yield and quality in coastal saline-alkali soils, and the improvement effect increased with the increase of gypsum application rate.

Key words: rice, gypsum, yield, rice quality, coastal saline-alkali soils

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