湖北农业科学 ›› 2023, Vol. 62 ›› Issue (5): 107-111.doi: 10.14088/j.cnki.issn0439-8114.2023.05.019

• 园艺·特产 • 上一篇    下一篇

壳聚糖对葡萄幼苗养分吸收的影响

黄泳1,2, 陈松1, 陈庆东1, 陈庆华1, 范中菡1, 夏丹2, 廖明安2, 林立金2, 胡容平3   

  1. 1.四川省农业科学院植物保护研究所/农业部西南作物有害生物综合治理重点实验室,成都 610066;
    2.四川农业大学园艺学院,成都 611130;
    3.四川省食用菌研究所,成都 610066
  • 收稿日期:2021-08-23 出版日期:2023-05-25 发布日期:2023-06-12
  • 通讯作者: 胡容平(1979-),男,四川营山人,副研究员,博士,主要从事植物病虫害防治研究,(电话)18108095832(电子信箱)44573780@qq.com。
  • 作者简介:黄泳(2001-),男(回族),四川成都人,2019级本科生,主要从事园艺植物栽培生理研究,(电话)18080133829(电子信箱)1633821203@qq.com。
  • 基金资助:
    国家现代农业产业体系四川水果创新团队项目(sccxtd-2021-04); 四川省农业科学院中试熟化项目(2021ZSSFXC56); 丹棱县特色农业产业提质增效关键技术示范与推广(科技特派员)(2022ZHXC0042)

Effects of chitosan on nutrient absorption of grape seedlings

HUANG Yong1,2, CHEN Song1, CHEN Qing-dong1, CHEN Qing-hua1, FAN Zhong-han1, XIA Dan2, LIAO Ming-an2, LIN Li-jin2, HU Rong-ping3   

  1. 1. Institute of Plant Protection, Sichuan Academy of Agricultural Sciences/Key Laboratory of Integrated Pest Management in Southwest Agriculture Crops of Ministry of Agriculture, Chengdu 610066, China;
    2. College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China;
    3. Institute of Sichuan Edible Fungi, Chengdu 610066, China
  • Received:2021-08-23 Online:2023-05-25 Published:2023-06-12

摘要: 为筛选出有利于葡萄(Vitis vinifera L.)幼苗养分吸收的壳聚糖浓度,为葡萄生产提供参考,试验以葡萄幼苗为材料,对其喷施不同浓度的壳聚糖溶液,研究壳聚糖对葡萄幼苗养分吸收的影响。结果表明,喷施壳聚糖溶液提高了葡萄幼苗整株氮、磷、钾含量,在壳聚糖浓度为4 g/L时达最大值,分别较对照增加25.53%、18.67%、12.63%。壳聚糖处理也提高了土壤碱解氮、速效磷、速效钾和有机质含量,其中,壳聚糖浓度4 g/L时,土壤有机质含量较对照增加42.58%。葡萄幼苗的中微量元素钠和钙含量随壳聚糖浓度的增大呈先降后升再降的变化趋势,而镁含量呈先升后降的变化趋势。就土壤酶活性而言,壳聚糖提高了土壤蔗糖酶、脲酶、过氧化氢酶和磷酸酶活性。4 g/L壳聚糖最有利于葡萄幼苗养分的吸收。

关键词: 葡萄(Vitis vinifera L.)幼苗, 壳聚糖, 养分吸收, 土壤酶活性

Abstract: In order to screen out the most optimal chitosan concentration for grape(Vitis vinifera L.) seedling nutrient absorption and provide the reference for grape production, grape seedlings were used as materials in the experiment, the chitosan with different concentrations was sprayed on the grape seedlings, and the effects of chitosan on nutrient absorption of grape seedlings were studied. The results showed that the chitosan increased the contents of nitrogen(N), phosphorus(P), and potassium(K)in the whole plant of grape seedlings. When the concentration of chitosan was 4 g/L, the content of N, P and K reached the maximum, increasing by 25.53%, 18.67% and 12.63% compared with that of the control, respectively. The chitosan treatment also increased the concentrations of soil alkali-hydrolyzable N, available P, available K and organic matter, and the content of soil organic matter was increased by 42.58% when the concentration of chitosan was 4 g/L. With the increase of chitosan concentration, the medium trace elements sodium and calcium contents in grape seedlings had a trend of decrease, increase, and then decrease, and the magnesium content in grape seedlings had a trend of increase and decrease. For soil enzyme activity, chitosan increased the activities of soil sucrase, urease, catalase, and phosphatase. Chitosan at 4 g/L was the most beneficial to grape seedlings nutrient absorption.

Key words: grape (Vitis vinifera L.) seedlings, chitosan, nutrient absorption, soil enzyme activity

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