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首页> 外文期刊>Journal of Ecological Engineering >HOW DOES BIOCHAR AND BIOCHAR WITH NITROGEN FERTILIZATION INFLUENCE SOIL REACTION?
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HOW DOES BIOCHAR AND BIOCHAR WITH NITROGEN FERTILIZATION INFLUENCE SOIL REACTION?

机译：氮肥中的生物炭和生物炭如何影响土壤反应？

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Biochar usually has a neutralizing effect therefore it is recommended for application to acid soils due to its potential to increase a soil pH. The aims of this study were (1.) to quantify the role of different rates of biochar and biochar in combination with N fertilization on change of soil pH, and (2.) to evaluate the dynamic changes of soil pH in relation with doses of biochar and biochar with N fertilization. A field experiment was conducted with different biochar application rates: B0 control (0 t ha-1), B10 (10 t ha-1) and B20 (20 t ha-1) and 0, 40 and 80 kg N ha–1 of nitrogen fertilizer (N0, N40, N80) on silt loam Haplic Luvisol at the locality of Dolná Malanta (Slovakia) in 2014. Their effects were investigated after vegetation season of spring barley and spring wheat (once a month: from April to July) in 2014 and 2016, respectively. Experimental results indicate that the soil pHH2O in B0N0, B10N0, B20N0, B10N40, B20N40, B10N80 and B20N80 were 6.23, 6.45, 6.60, 6.77, 6.48, 6.36 and 6.60, respectively. The results of LSD test showed statistically significant differences between soil pH in control treatment and treatments with biochar and biochar with N fertilization. The most significant effect on increase of soil pH was observed in B10N40. During whole period, after application of biochar and biochar with N fertilization the values of pHKCl were gradually decreased in all treatments.
机译：生物炭通常具有中和作用，因此由于其可能增加土壤pH值，因此建议用于酸性土壤。这项研究的目的是（1.）量化不同生物炭和生物炭与氮肥组合施用对土壤pH值变化的作用，以及（2.）评价土壤pH值随剂量变化的动态变化。生物炭和氮肥生物炭。进行了不同生物炭施用量的田间试验：B0对照（0 t ha-1），B10（10 t ha-1）和B20（20 t ha-1）以及0、40和80 kg N ha-1 2014年在DolnáMalanta（斯洛伐克）的粉质壤土Haplic Luvisol上施用了氮肥（N0，N40，N80）。在春季大麦和春季小麦的植被季节（每月一次：4月至7月）之后调查了它们的影响2014年和2016年。实验结果表明，B0N0，B10N0，B20N0，B10N40，B20N40，B10N80和B20N80中的土壤pHH2O分别为6.23、6.45、6.60、6.77、6.48、6.36和6.60。 LSD测试的结果表明，对照处理与生物炭和氮肥生物炭处理的土壤pH在统计学上有显着差异。 B10N40对土壤pH的增加影响最大。在整个时期，施用生物碳和氮肥生物碳后，所有处理的pHKCl值均逐渐降低。

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