| 氨基多糖对连作西瓜生长与土壤环境的影响 |
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| 引用本文： | 戚嘉琦,王玮,仲秀娟,孙玉东,吴传万,陈伯清.氨基多糖对连作西瓜生长与土壤环境的影响[J].中国瓜菜,2021(2). |
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| 作者姓名： | 戚嘉琦 王玮 仲秀娟 孙玉东 吴传万 陈伯清 |
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| 作者单位： | 淮阴工学院生命科学与食品工程学院;江苏徐淮地区淮阴农业科学研究所 |
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| 基金项目： | 江苏省研究生科研与实践创新计划项目(SJCX20_1338);淮安市自然科学研究计划(HABZ201931);企业委托横向课题。 |
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| 摘 要： | 针对西瓜连作障碍问题,研究了不同浓度下2种分子质量的氨基多糖对连作西瓜生物学与土壤环境的影响。利用盆栽试验,分析不同肥料1(甲壳素)和肥料2(氨基多糖水溶肥)对连作西瓜生长和土壤养分、酶活性及微生物群落的影响。结果表明,肥料1和肥料2对西瓜生长和土壤环境均有一定影响。在肥料1施用量为3 g·kg-1时的综合效果最佳,西瓜平均株高为157.67 cm、干质量为11.00 g、蔗糖酶活性为18.08 mg·g-1·24 h-1、脲酶活性为0.93 mg·g-1·24 h-1、真菌数量为30.67×104 cfu·g-1、细菌数量为47.33×105 cfu·g-1。与对照相比,西瓜的株高和干质量分别提高60.02%、139.71%,蔗糖酶活性增加62.35%、脲酶活性增加29.98%、真菌数量减少36.54%、细菌数量增加2.8倍。综上所述,施用3 g·kg-1肥料1有利于促进西瓜生长、提高土壤酶活性、改善土壤微生物群落结构。研究结果可为缓解西瓜连作障碍提供理论依据。
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| 关 键 词： | 西瓜 连作障碍 甲壳素 氨基多糖 生长 土壤环境 |
Effects of aminopolysaccharide on growth and soil environment of continuous cropping watermelon influence |
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| QI Jiaqi,WANGWei,ZHONG Xiujuan,SUN Yudong,WU Chuanwan,CHEN Boqing.Effects of aminopolysaccharide on growth and soil environment of continuous cropping watermelon influence[J].China Cucurbits And Vegetables,2021(2). |
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| Authors: | QI Jiaqi WANGWei ZHONG Xiujuan SUN Yudong WU Chuanwan CHEN Boqing |
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| Institution: | (College of Life Science and Food Engineering,Huaiyin Institute of Technology,Huaian 223002,Jiangsu,China;Huaiyin Agricultural Science Research Institute in Xuhuai Area,Jiangsu Province,Huaian 223001,Jiangsu,China) |
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| Abstract: | To study the continuous cropping obstacles of watermelon,the effects of two molecular weight amino polysaccharides at different concentrations on biology and soil environment of watermelon continuous cropping.The pot experiment was carried out,the effects of the Fertilizer 1(Chitin)and the Fertilizer 2(Amino polysaccharide water-soluble fertilizer)at different concentrations on the growth and soil nutrients were investigated,enzyme activity and microbial community of continuous cropping watermelon were observed.The results showed that the watermelon growth and soil environment were certain affected by Fertilizer 1 and the Fertilizer 2.When treated by 3 g·kg-1 Fertilizer 1,the comprehensive effect was the best,the plant average length of watermelon plant was 157.67 cm,the dry plant weight was 11.00 g,sucrase activity was 18.08 mg·g-1·24h-1,urease activity was 0.93 mg·g-1·24h-1,the number of fungus was 30.67×104 cfu·g-1 and the number of bacteria was 47.33×105cfu·g-1.Compared with the control group,the watermelon plant length,dry plant weight,the sucrase activity,urease activity and the number of bacteria increased by 60.02%,139.71%,62.35%29.98%and 2.8 times,respectively,while the number of fungus decreased by 36.54%In conclusion,application of 3g·kg-1 fertilizer 1 was beneficial to promote the growth of watermelon,improve soil enzyme activity,improve soil microbial community structure,which provided a theoretical basis for relieving the continuous cropping obstacles of watermelon. |
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| Keywords: | Watermelon Continuous cropping obstacle Chitin Aminopolysaccharide Growth Soill environment |
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