• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Scientific Reports >Role of Slow-Release Nanocomposite Fertilizers on Nitrogen and Phosphate Availability in Soil
【2h】

Role of Slow-Release Nanocomposite Fertilizers on Nitrogen and Phosphate Availability in Soil

机译：缓释纳米复合肥对土壤氮和磷有效性的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Developing efficient crop fertilization practices has become more and more important due to the ever-increasing global demand for food production. One approach to improving the efficiency of phosphate and urea fertilization is to improve their interaction through nanocomposites that are able to control the release of urea and P in the soil. Nanocomposites were produced from urea (Ur) or extruded thermoplastic starch/urea (TPSUr) blends as a matrix in which hydroxyapatite particles (Hap) were dispersed at ratios 50% and 20% Hap. Release tests and two incubation experiments were conducted in order to evaluate the role played by nanocomposites in controlling the availability of nitrogen and phosphate in the soil. Tests revealed an interaction between the fertilizer components and the morphological changes in the nanocomposites. TPSUr nanocomposites provided a controlled release of urea and increased the release of phosphorus from Hap in citric acid solution. The TPSUr nanocomposites also had lower NH3 volatilization compared to a control. The interaction resulting from dispersion of Hap within a urea matrix reduced the phosphorus adsorption and provided higher sustained P availability after 4 weeks of incubation in the soil.
机译：由于全球对粮食生产的需求不断增长，开发有效的农作物施肥方法变得越来越重要。一种提高磷酸盐和尿素施肥效率的方法是通过能够控制土壤中尿素和磷释放的纳米复合材料来改善它们之间的相互作用。纳米复合材料是由尿素（Ur）或挤出的热塑性淀粉/脲（TPSUr）共混物制成的，其中羟基磷灰石颗粒（Hap）以50％和20％Hap的比例分散在其中。为了评估纳米复合材料在控制土壤中氮和磷的有效性方面的作用，进行了释放测试和两个温育实验。试验表明，肥料成分与纳米复合材料的形态变化之间存在相互作用。 TPSUr纳米复合材料可控制释放尿素，并增加柠檬酸溶液中Hap中磷的释放。与对照相比，TPSUr纳米复合材料的NH3挥发量也较低。在土壤中培养4周后，Hap在尿素基质中的分散作用降低了磷的吸附并提供了更高的持久性P利用率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号