| 裴福云 1， 2 ， 王德汉 2 ， 房钦飞 1 ， 段继贤 1 ， 黄培钊.含不同粒径膨润土的复混肥对水稻生长的影响[J].广东农业科学,2015,42(17):57-61 |
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含不同粒径膨润土的复混肥对水稻生长的影响 |
| Effects of compound fertilizer with differentparticle size of bentonite on rice growth |
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| DOI： |
| 中文关键词: 膨润土 粒径 养分利用 水稻 |
| 英文关键词: bentonite particle size nutrient utilization rice |
| 基金项目:深圳市战略性新兴产业发展专项资金
（NYSW20140401010062） |
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| 摘要点击次数: 1652 |
| 全文下载次数: 768 |
| 中文摘要: |
| 硅是水稻生长的有益元素， 天然矿石材料膨润土是一种较好的硅源。 把不同粒径的膨润土， 利用
高塔造粒工艺添加入复混肥， 考察其作为基肥对水稻地上部分、 根系的干重及鲜重的影响； 同时考察不同阶段
植株内及相应土壤中氮磷钾养分， 分析养分的吸收利用率。 通过检测水稻植株含硅量， 对比不同粒径膨润土材
料的活性。 结果表明， 添加不同粒径的膨润土均能提高水稻植株干重， 在非纳米膨润土与纳米膨润土添加质量
比为 3% 情况下， 氮磷钾利用率分别提高 6.13% 和 21.47%， 植株总干重分别提高 9.49%、 34.40%， 根系干重分
别提高 16.10%、 61.25%； 纳米膨润土与非纳米膨润土添加量为 1% 的情况下相比较， 吸收硅的量提高 31.7%，
添加非纳米膨润土起到了养分缓释的作用， 添加纳米膨润土起到了快速释放的作用， 说明不同粒径膨润土在
复混肥中对吸收利用氮磷钾的效果不同。 |
| 英文摘要: |
| Silicon is one of the beneficial elements for rice growth， and natural bentonite is a convenient resource
of silicon. This paper investigated the effects of bentonite with different particle size in compound fertilizer on rice growth.
The compound fertilizer was prepared by tower granulation process. Bentonite was appended according to different
weight ratios as 1%， 3% and 5%. Root application of different compound fertilizer was evaluated for their effects on
promoting growth and quality of rice via pot experiment. The dry weight of plant increased with the addition of bentonite
with different particle size. A comparison of several treatments showed that addition of both bentonite and nano bentonite
increased the dry biomass， fresh weight and root system. With the addition of bentonite and nano bentonite of 3% in
compound fertilizer， the dry biomass increased by 9.49% and 34.40%， respectively. Compared to the control， the total
nitrogen， phosphorus and potassium contents increased by 6.13% and 21.47%， respectively， and the root dry weight
increased by 16.10% and 61.25%， respectively. The statistical results revealed that nano bentonite possessed high
activity and bentonite improved the slow-release of fertilizer because of its lamellar structure. |
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