• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical and Biological Technologies in Agriculture >Incorporation of humic-derived active molecules into compound NPK granulated fertilizers: main technical difficulties and potential solutions
【24h】

Incorporation of humic-derived active molecules into compound NPK granulated fertilizers: main technical difficulties and potential solutions

机译：将腐殖质来源的活性分子掺入复合NPK颗粒肥料中：主要技术难题和潜在解决方案

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Numerous studies carried out both in open field and laboratory scale have provided experimental evidence for a beneficial action of humic substances (HS) on plant growth and mineral nutrition. In fact, many products containing diverse concentrations of humic substances, mainly humic and fulvic acids, are marketed as plant growth enhancers all over the world. However, the incorporation of molecules containing humic substances into the granules of compound NPK fertilizers is not a common practice mainly due to technical difficulties and problems associated with the manufacture process of these mineral fertilizers. These problems are normally linked to the potential deleterious effects of granulation conditions (principally, heat and pH) on the structure and properties of molecules containing humic substances. In this review, we discuss several strategies for the incorporation of active molecules containing humic substances into granules of NPK compound fertilizers as well as the main constraints that have to be considered in this process, which normally depend on the agronomical results intended with the preparation of special humic-containing NPK compound fertilizers. We also discuss why, in our opinion, the beneficial action of HS in NPK compound fertilizers is more related to the “so called” indirect effects of HS on plant growth than to the “so called” direct effects. Open image in new window Graphical Localization of humic-calcium-phosphate based NPK fertilizer granule into the rhizosphere of maize plants cultivated in a calcareous soil
机译：在露天和实验室范围内进行的大量研究为腐殖质（HS）对植物生长和矿物质营养的有益作用提供了实验证据。实际上，许多含有不同浓度的腐殖质物质（主要是腐殖酸和黄腐酸）的产品已在世界范围内作为植物生长促进剂销售。然而，主要由于技术上的困难和与这些矿物肥料的生产过程有关的问题，将含有腐殖质的分子掺入到复合NPK肥料的颗粒中并不普遍。这些问题通常与造粒条件（主要是热和pH）对含有腐殖质的分子的结构和性质的潜在有害影响有关。在这篇综述中，我们讨论了将含有腐殖质的活性分子掺入NPK复合肥料颗粒中的几种策略，以及在此过程中必须考虑的主要限制因素，这些因素通常取决于制备甘草糖的农艺结果。特殊的含有腐殖质的NPK复合肥料。我们还讨论了为什么我们认为HS在NPK复合肥料中的有益作用与HS对植物生长的“所谓”间接效应相比，而不是与“所谓的”直接效应更相关。在新窗口中打开图像在石灰性土壤上种植的基于腐殖酸钙磷酸盐的NPK肥料颗粒在玉米根际中的定位

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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