| 几种包膜控效肥氮溶出率测试 |
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| 引用本文： | 魏玉云,茶正早,罗微,林清火,林钊沐. 几种包膜控效肥氮溶出率测试[J]. 热带农业科学, 2005, 25(6): 20-23 |
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| 作者姓名： | 魏玉云 茶正早 罗微 林清火 林钊沐 |
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| 作者单位： | 中国热带农业科学院橡胶研究所,海南,儋州,571737 |
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| 基金项目： | 橡胶研究所创新基金资助项目. |
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| 摘 要： | 初步测试了3种自制的包膜控效肥的控释性能。结果显示：包膜CAF1、CAF4、CAF5的厚度分别为0．32、0．29和0．34mm，其重量分别占26．05％、19．75％和19．35％；3种控效肥在水中的溶解速度和氮溶出率均显著慢于未包膜的肥料．说明自制的控效肥有相当明显的控释作用和各自的养分释放特征。
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| 关 键 词： | 控效肥 包膜 氮溶出率 |
| 收稿时间： | 2005-05-31 |
| 修稿时间： | 2005-05-31 |
Determination of the Dissolving Rate of Several Controlled-Release Fertilizers |
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| WEI Yuyun,CHA Zhengzao,LUO Wei,LIN Qinghuo,LIN Zhaomu. Determination of the Dissolving Rate of Several Controlled-Release Fertilizers[J]. Chinese Journal of Tropical Agriculture, 2005, 25(6): 20-23 |
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| Authors: | WEI Yuyun CHA Zhengzao LUO Wei LIN Qinghuo LIN Zhaomu |
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| Affiliation: | Rubber Research Institute, CATAS, Danzhou, Hainan 571737 |
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| Abstract: | The performance of three kinds of homemade controlled-release fertilizers were tested. The results indicated that the envelope thickness of the three kinds of controlled-release fertilizers were CAF1 0.32 mm, CAF4 0.29 mm, CAF5 0.34 mm, and the weight of the envelopes accounted for respectively CAF1 26.05%, CAF4 19.75%, CAF5 19.35% of the total weight of the fertilizers. The deliquescent speed and nitrogen-dissolving rate of the three kinds of controlled-release fertilizers were significantly lower than those of the fertilizers without envelope, which indicated that the homemade controlled-release fertilizers were effective with respective nutrient releasing characteristics. |
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| Keywords: | controlled-release fertilizer envelope dissolving rate of nitrogen |
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