复合保水剂吸水保水性能及其应用

为了促进自制的复合保水剂（以下称复合保水剂）在节水型设施基质栽培中的合理应用,该文比较了复合保水剂和对照保水剂（旱宝贝MP3005KM）的吸水保水性和发芽率,以β-环糊精（β）、羧甲基纤维素钠（CMC）、可溶性淀粉（K）、竹炭粉（Z）和玉米芯热解粉（TD）为原料,采用水浴加热法制备,分析5种保水剂的pH值、溶胀度、吸水速率、失水速率、反复吸水性并进行发芽试验,对结果进行方差分析和多重比较。结果表明：4种复合保水剂性能均优于对照,其中以β-环糊精＋羧甲基纤维素钠＋可溶性淀粉＋玉米芯热解粉配方的复合保水剂为最优,溶胀度达183.98mL/g,吸水速率最大,失水速率最小,发芽指数达对照的7倍。该研究...

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Bibliographic Details
Published in农业工程学报 Vol. 28; no. 15; pp. 87 - 93
Main Author 张璐 孙向阳 田赟 龚小强
Format Journal Article
LanguageChinese
Published 北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100083 2012
Subjects
pH值
发芽试验
吸水倍率
吸水速率
复合保水剂
失水速率
应用
溶胀度
溶胀度
吸水速率
发芽试验
pH
失水速率
值
吸水倍率
应用
复合保水剂
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2012.15.014

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Summary:为了促进自制的复合保水剂（以下称复合保水剂）在节水型设施基质栽培中的合理应用,该文比较了复合保水剂和对照保水剂（旱宝贝MP3005KM）的吸水保水性和发芽率,以β-环糊精（β）、羧甲基纤维素钠（CMC）、可溶性淀粉（K）、竹炭粉（Z）和玉米芯热解粉（TD）为原料,采用水浴加热法制备,分析5种保水剂的pH值、溶胀度、吸水速率、失水速率、反复吸水性并进行发芽试验,对结果进行方差分析和多重比较。结果表明：4种复合保水剂性能均优于对照,其中以β-环糊精＋羧甲基纤维素钠＋可溶性淀粉＋玉米芯热解粉配方的复合保水剂为最优,溶胀度达183.98mL/g,吸水速率最大,失水速率最小,发芽指数达对照的7倍。该研究可为中国未来保水剂的研究开发、生产和应用提供参考。
Bibliography:In order to promote the reasonable application of self-made composite water retaining agent on protected substrate cultivation for water-saving, difference of the properties of water absorption and retention and germination percentage between composite water retaining agent and the control （MP3005 KM） were compared in this paper. With β-cyclodextrin, sodium carboxymethyl cellulose, soluble starch, bamboo charcoal powder and pyrolytic corncob as raw materials, composite water retaining agents were prepared by using water bath heating, pH values, swelling degrees, water absorption rates, dehydrating rates, frequent absorbency and germination tests were analyzed and compared with analysis of variance （ANOVA） and multiple comparison tests. The results showed that four kinds of self-made composite water retaining agents all had better properties on the water absorption and retention than the control which the optimal composite water retaining agent was the fl-cyclodextrin ＋ sodium carboxymenthyl cellulose ＋ solubl
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2012.15.014