长期定位连续施用生物炭对植烟土壤物理性状的影响

doi:10.7668/hbnxb.2018.03.027

摘要/Abstract

摘要： 为了改良土壤的物理性状，并探讨连续施用生物炭对植烟土壤物理性状的长期效应，以云烟87为试材，通过3年定位试验研究了连续施用生物炭对植烟土壤物理性状的影响。结果表明：连续施用生物炭能明显影响土壤的物理性状。连续施用生物炭对2015年烤烟生育各时期内土壤含水率均有促进作用，土壤含水率升高了3.243~3.983个百分点，且差异极显著，而在2016，2017年时，连续施用生物炭后在烤烟生育各时期内土壤含水率与对照比较或高或低，但差异均不显著；连续施用生物炭在2015年移栽后30 d时，土壤容重升高0.083个百分点，土壤孔隙度降低3.113个百分点，但差异均不显著，其他年份各时期为连续施用生物炭后土壤容重降低0.010~0.144个百分点，土壤孔隙度升高0.500~5.537个百分点，且以2017年移栽后30 d时生物炭对土壤容重和孔隙度的影响作用显著；连续施用生物炭对2015，2016年各时期的土壤固相比影响较小，主要能显著降低2017年移栽后30 d时土壤固相比。连续施用生物炭能极显著增加2015年各时期土壤液相比，降低2015年移栽后30 d土壤气相比，但对其他年份各时期的土壤液相比和气相比影响较小。不同年份各时期土壤物理性状各参数主成分分析结果显示，连续施用生物炭后的土壤物理性状与对照差异较大，有利于土壤物理性状的改善。

关键词: 定位试验, 生物炭, 土壤, 物理性状

Abstract: In order to improve soil physical properties and study the long-term effects of continuous application of biochar on soil physical properties of planting tobacco. Yunyan 87 was selected as testing material and a three years located experiment was designed to study the effects of continuous application of biochar on soil physical properties of planting tobacco. The results showed that continuous application of biochar could obviously affect the soil physical properties. Continuous application of biochar promoted the soil moisture content in each periods of flue-cured tobacco growth in 2015,the soil moisture content increased by 3.243-3.983 percentage points,which had extremely significant difference,while the soil moisture content increased or decreased compared with the control at each periods of flue-cured tobacco growth in 2016 and 2017,and no significant difference was found. The soil bulk density increased by 0.083 percentage points and the porosity decreased by 3.113 percentage points at 30 days after transplanting in 2015 after continuous application of biochar,but no significant difference was found,the soil bulk density decreased by 0.010-0.144 percentage points and the porosity increased by 0.500-5.537 percentage points at each periods in other years after continuous application of biochar,and the effects of biochar on the soil bulk density and porosity were significant difference at 30 days after transplanting in 2017. Continuous application of biochar had little impact on the ratio of solid phase of soil at each periods in 2015 and 2016,which could significantly reduced the ratio of solid phase of soil at 30 days after transplanting in 2017. Continuous application of biochar could extremely significantly increased the ratio of liquid phase of soil at each periods in 2015,and reduced the ratio of gas phase of soil at 30 days after transplanting in 2015,while had little impact on the ratio of solid phase and ratio of gas phase of soil at each periods in other years. The results of principal component analysis of the index of soil physical properties in each period of different years showed that the soil physical properties were obviously different from the control after continuous application of biochar,which was beneficial to the improvement of soil physical properties.

Key words: Located experiment, Biochar, Soil, Physical properties

中图分类号:

S147.2
S572

刘卉, 周清明, 黎娟, 向德明, 张黎明. 长期定位连续施用生物炭对植烟土壤物理性状的影响[J]. 华北农学报, 2018, 33(3): 182-188. doi: 10.7668/hbnxb.2018.03.027.

LIU Hui, ZHOU Qingming, LI Juan, XIANG Deming, ZHANG Liming. Effects of Long-term Located Continuous Application of Biochar on Soil Physical Properties of Planting Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2018, 33(3): 182-188. doi: 10.7668/hbnxb.2018.03.027.

http://www.hbnxb.net/CN/Y2018/V33/I3/182

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