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首页> 外文期刊>Australian Journal of Crop Science >Sugarcane residue incubated in soil at different temperatures and nitrogen fertilization
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Sugarcane residue incubated in soil at different temperatures and nitrogen fertilization

机译：不同温度和氮肥条件下在土壤中培养的甘蔗渣

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摘要

The sugarcane residue deposited on the soil is an alternative source of nutrients, which can serve as a soil conditioner in soil conservation. The effects of sugarcane harvest systems, especially with the residue incorporated into, or left on the soil surface, and the resulting impact on the availability of plant nutrients are little known. The aim of this work was to study the influence of nitrogen fertilization (0 and 120 kg ha-1 of N) and the management of sugarcane residue (surface and incorporated) on the availability of nutrients in soils incubated at three temperatures (20, 25 and 30° C). It was concluded that there is an increase of 6.89 % N in the soil with the sugarcane residue incorporation, compared to the surface management. Total soil N increases were obtained with sugarcane residue, especially when incorporated and associated with nitrogen fertilization. There was no effect of the treatments on soil microbial biomass carbon content (S-MBC), labile carbon (Labile-C), calcium (Ca+2), magnesium (Mg+2) and phosphorus (P). Potassium is the nutrient that presents rapid mineralization from the residue into the soil. With the addition of the incorporated and soil surface residue there occurred increases in the final K+ mineralization of 42.05 % and 11.98 %, respectively.
机译：沉积在土壤上的甘蔗残渣是营养的另一种来源，可作为土壤保护中的土壤改良剂。甘蔗收割系统的影响，特别是残留物掺入土壤表面或留在土壤表面，以及由此产生的对植物养分利用率的影响鲜为人知。这项工作的目的是研究氮肥（0和120 kg ha-1的氮）的影响以及甘蔗残渣（表面和掺入的肥料）对三种温度（20、25和25）下培养的土壤中养分有效性的影响。和30°C）。结论是，与地表处理相比，掺入甘蔗渣的土壤中氮的含量增加了6.89％。土壤总氮的增加是通过甘蔗残渣获得的，特别是当掺入氮肥并与之相关时。处理对土壤微生物生物量碳含量（S-MBC），不稳定碳（Labile-C），钙（Ca + 2），镁（Mg + 2）和磷（P）没有影响。钾是一种营养物质，可从残留物中快速矿化到土壤中。随着掺入和土壤表层残渣的加入，最终钾离子矿化量分别增加了42.05％和11.98％。

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