...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Australian Journal of Crop Science >Application of organomineral fertilizers sourced from filter cake and sewage sludge can affect nutrients and heavy metals in soil during early development of maize
【24h】

Application of organomineral fertilizers sourced from filter cake and sewage sludge can affect nutrients and heavy metals in soil during early development of maize

机译：施用来自滤饼和污水污泥的有机矿物肥料会影响玉米早期发育期间土壤中的养分和重金属

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

摘要

This study determined the changes in soil nutrients, organic carbon, organic matter and heavy metals during the early development stages of maize fertilized with different sources and doses. Also, this study confirmed that the used biosolid in the formulation of organomineral fertilizer makes greater efficacy than the effects promoted by mineral or filter cake organomineral fertilizers already used in agricultural. The experiment was done in a greenhouse at the Federal University of de Uberlandia - Campus Umuarama. The experimental design was randomized block design, as a 2 x 5 + 2 factorial, containing two sources of organomineral fertilizer consisting of organic residues (biosolid and filter cake), five doses of organomineral fertilizer (60, 80, 100, 120 and 140% of P2O5 recommendation for maize crop), a positive control with mineral fertilization (100%) and a negative one with no fertilization with four replications. The soil pH and contents of phosphorus, potassium, calcium, magnesium base saturation, base sum, micronutrients, organic carbon, organic matter and heavy metals were determined subsequently after plant removal, 65 days after sowing. The organomineral fertilizers based on biosolid and filter cake yielded increases in phosphorus, boron and manganese in the soil, especially the biosolid source. Regardless of the fertilizer organic matter source, soil phosphorus increased linearly with increasing doses of the sources. Doses equal or below the recommendation for maize (100% P2O5) were less effective in supplying potassium. The organomineral sources did not add heavy metals to the soil. Fertilizers based on biosolid can supply nutrients, such as phosphorus, boron and manganese at high doses, replacing mineral fertilization, while maintaining and improving soil fertility with no contamination by heavy metals.
机译：这项研究确定了不同来源和剂量施肥的玉米早期发育阶段土壤养分，有机碳，有机质和重金属的变化。同样，该研究证实，有机矿物质肥料配方中使用的生物固体比已经在农业中使用的矿物质或滤饼有机矿物质肥料具有更大的功效。该实验是在乌贝兰迪亚联邦大学-校园Umuarama的温室中完成的。实验设计为2×5 + 2因子分解的随机区组设计，包含两种由有机残留物组成的有机矿物肥料（生物固体和滤饼），五剂有机矿物肥料（60％，80％，100％，120％和140％） P2O5推荐用于玉米作物），使用矿物质肥料的阳性对照（100％）和不施肥的阴性对照，重复四次。移栽后65天，随后测定土壤的pH值以及磷，钾，钙，镁碱饱和度，碱和，微量营养素，有机碳，有机质和重金属的含量。基于生物固体和滤饼的有机矿物肥料可增加土壤中磷，硼和锰的含量，尤其是生物固体源。不论肥料中有机物的来源如何，土壤磷都随着剂量的增加而线性增加。等于或低于玉米推荐剂量（100％P2O5）的钾供应效率较低。有机矿物源未向土壤添加重金属。基于生物固体的肥料可以提供高剂量的养分，例如磷，硼和锰，代替矿物肥料，同时保持并改善土壤肥力，而不会被重金属污染。

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