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首页> 外文期刊>Australian Journal of Crop Science >Seeding densities of the oat crop and the amount of grazing on the physical property and soil carbon
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Seeding densities of the oat crop and the amount of grazing on the physical property and soil carbon

机译：燕麦作物的播种密度和放牧量对物理性质和土壤碳的影响

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摘要

The objective of this study was to evaluate the effect of two sowing densities of oat crop, managed in an integrated crop-livestock system (ICLS), or the use of fallow during the winter period, on the soil physical properties, total carbon and soil carbon stock, in two years. A split-plot in a randomized block design, with additional treatment was used. It was found that the number of grazing in the year 2014 adversely affected the values of macroporosity and microporosity in the layer 0-0.05 m, besides the microporosity in the 0.1-0.2 m layer. The total porosity in the 0.1-0.2 m layer was positively influenced by the sowing density of oats only in the year 2014. The soil penetrometer resistance (SPR) had changes after winter 2015, at 0-0.05 m due to the number of grazing. During 2014, there were no changes in the total carbon and carbon storage of the soil. In 2015, the amount of grazing used, negatively affected the total carbon in layers 0-0.05 and 0.1-0.2 m. However, it positively affected the storage of carbon in soil in the layer 0.05-0.1 m. The adoption of the lower density of the oat crop with realization of a grazing tends to improve the physical properties, total carbon and soil carbon stocks.
机译：这项研究的目的是评估两种燕麦密度的播种对土壤物理性质，总碳和土壤的影响，两种播种密度采用作物－畜牧综合系统（ICLS）进行管理，或在冬季使用休耕法。碳储量，两年内。在随机区组设计中使用分裂图，并进行了额外处理。发现2014年的放牧次数除了对0.1-0.2 m层的微孔性外，还对0-0.05 m层的大孔性和微孔性值产生了不利影响。仅在2014年，燕麦的播种密度才对0.1-0.2 m层的总孔隙度产生积极影响。由于放牧次数的增加，土壤渗透仪的抗性（SPR）在2015年冬季后发生了变化，为0-0.05 m。 2014年期间，土壤总碳和碳储量没有变化。在2015年，放牧的使用量对0-0.05层和0.1-0.2 m层的总碳产生了负面影响。但是，它对0.05-0.1 m层土壤中的碳存储有积极影响。在放牧的情况下采用较低密度的燕麦作物往往会改善物理特性，总碳和土壤碳储量。

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