摘要
该文以野桃坝土地整理项目为例,采用野外采样和室内分析相结合的方法,研究了土地整理对植烟土壤养分状况的影响。结果表明,土地整理前后土壤主要养分含量发生显著变化,有效磷从18.17 mg/kg升高到29.87 mg/kg,有机质含量从27.5 g/kg降低为14.9 g/kg,速效钾从212.14 mg/kg降低为141.63 mg/kg,碱解氮含量变化不显著。在空间分布方面,土地整理使有效磷、速效钾和有机质土壤空间分布更均匀,区域差异减小。该研究明确了土地整理后烟田土壤养分状况,对烤烟生产和施肥具有指导意义。
Taking Yetaoba land consolidation project as an example, the effect of land consolidation on tobacco- growing soil nutrient were studied by using field survey with in-door analysis. The results indicated soil nutrient con- tent and spacial distribution changed significantly before and after land consolidation. The available phosphorus con- tent increased from 18.17mg/kg to 29.87mg/kg, the organic matter content decreased from 27.5g/kg to 14.9g/kg, the available potassium content decreased from 212.14mg/kg to 141.63mg/kg,and the alkali hydrolyzable nitrogen content changed non-significantly. In the aspect of spatial distribution, land consolidation made the available phosphorus, available potassium and organic matter of soil spatial distribution more uniform and the regional difference de- creased. This study identified soil nutrient after land consolidation, which had a significance on flue-cured tobacco production and fertilization.
出处
《安徽农学通报》
2016年第3期54-56,共3页
Anhui Agricultural Science Bulletin
关键词
土地整理
养分
烤烟
丰都县
Land consolidation
Nutrient
Tobacco
Fengdu County
