In a laboratory incubation experiment, timing change in amount of humic acid(HA) and fulvic acid(FA) was studied in dark-brown soil and paddy soil during corn stalk decomposition.
通过室内培养试验研究了玉米秸秆在暗棕壤和水稻土中分解期间全土及不同结合态胡敏酸、富里酸数量的动态变化。
Leaf N, P and K were higher of blueberry cultured on dark brown forest soil and meadow bog gleyed soil.
和K 含量在暗棕色森林土和草甸沼泽地土壤上较高；
Comprehensive analysis of the relevant factors for papermaking by comprehensive evaluation method indicates that larch wood in dark brown soil is suitable for papermaking.
采用综合评分法对不同土质长白落松木材的有关指标进行制浆造纸性能的综合比较分析得出∶土壤为暗棕壤的长白落叶松用作造纸用材较好。
The test results show the following order of soil types as regard to the soluble fluorine contents from high to low: Shajiang dark soil, Yellow brown earth and Purple soil, Paddy soil, Limy soil.
主要土壤类型土壤水溶性氟含量顺序是砂姜黑土、潮土＞黄棕壤、紫色土＞水稻土＞石灰土、粗骨土。
There is a small amount of gibbsite in the dark-yellow-brown soil.
暗黄棕壤中含有少量三水铝石。
For Cultivated Loessial Soil, Dark Loessial Soil and Yellow-brown Soil, the advance distance decreased as silt content increased.
随土壤深度增加，土壤中原油残留物的含量呈波动递减趋势。
For Cultivated Loessial Soil, Dark Loessial Soil and Yellow-brown Soil, the advance distance decreased as silt content increased.
随土壤深度增加，土壤中原油残留物的含量呈波动递减趋势。
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