| 叶面喷钙对金丝小枣钙素营养及果实品质的影响 |
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| 引用本文： | 牛晓琳,马文凤,刘艳芳,陈桂敏,梁军,张宏彦.叶面喷钙对金丝小枣钙素营养及果实品质的影响[J].中国土壤与肥料,2018(2):103-108. |
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| 作者姓名： | 牛晓琳 马文凤 刘艳芳 陈桂敏 梁军 张宏彦 |
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| 作者单位： | 中国农业大学资源与环境学院;中国农业大学曲周实验站;山东乐陵市农业局 |
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| 基金项目： | “十三五”国家重点研发计划项目（2016YFD0200401）。 |
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| 摘 要： | 为探究叶面喷施钙肥对金丝小枣钙素营养、果实发育及品质的影响,以20年生乐陵金丝小枣为试材,以喷清水为对照,进行叶面喷施有机钙(柠檬酸钙,0.2%)和无机钙(硝酸钙,0.2%)试验,生长期间分4次测量果实生长指标以及叶片、果实中钙含量,收获期对一些果实品质指标进行测定。研究结果表明:叶面喷施有机钙和无机钙均可提高金丝小枣果实和叶片的Ca含量、果实可溶性糖含量、单果重、果形指数。喷施两种钙肥还可显著提高叶片SPAD值,改善叶片氮素营养。喷施柠檬酸钙可显著提高果实优质果比例,并降低劣质果比例。两种钙肥均可改善金丝小枣营养状况,促进金丝小枣果实发育,并且柠檬酸钙的效果优于硝酸钙。
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| 关 键 词： | 金丝小枣 硝酸钙 柠檬酸钙 喷施 |
| 收稿时间： | 2017/6/26 0:00:00 |
| 修稿时间： | 2017/8/14 0:00:00 |
Effect of foliar sprayed calcium fertilizer on calcium nutrition and fruit quality of gold silk thread jujube |
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| Abstract: | Field experiment was conducted to study the effect of foliar spray of organic calcium(calcium citrate,0.2%)and inorganic calcium(calcium nitrate,0.2%)on calcium nutrition,fruit development and fruit quality of gold silk thread jujube.The 20 year old Laoling gold silk jujube trees were used as test materials.During the growing seasons,the fruit growth index and the calcium content in leaves and fruits were measured for four times,and at the harvest days selected fruit quality index was measured.The preliminary results showed that foliar spraying organic and inorganic calcium significantly increased calcium content in the gold silk thread jujube fruits and leaves,increased the soluble sugar content in fruits,and increased the single fruit weight and fruit shape index.Spraying calcium fertilizer also significantly increased the leaf SPAD values due to the improving of the leaf nitrogen nutrition.Spraying calcium citrate significantly increased the proportion of high quality fruit and reduced the proportion of low quality fruit.Thus both calcium fertilizers can be used in future to improve the nutritional status of gold silk thread jujube and enhance fruit development although the foliar spraying of calcium citrate is better than calcium nitrate. |
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