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- 结果表明,DCD对3种土壤N2O释放及土壤NO3--N含量有明显抑制作用,随DCD浓度增加,其抑制效果越显著。The results showed that DCD could inhibit N2O emission from the soil, and the inhibiting effects increase with concentration.
- 土壤NO3-N含量Soil nitrate content
- 土壤C、N含量soil C and N content
- 种植扬稻6号的土壤NO3-浓度、硝化强度以及AOB数量总是高于农垦57。The nitrate concentration, nitrification activities and AOB of Indica were always higher than those of Japonica rice.
- N含量N content
- 土壤soil
- 施用有机肥可增加土壤NO3--N含量,对NH4+-N含量的影响较小。Applying organic fertilizer to soil mainly increased NO3-N content,had a little influence on NH4+-N.
- 不平衡施肥是引起土壤NO3-N大量累积的重要原因,施用有机肥以及NPK合理配合施用可明显地减少土壤NO3-N的残留。Unbalanced fertilization was the key reason for NO3-N accumulation, reasonably fertilization, organic manure and NPK could reduce the NO3-N residual.
- 土壤的edaphic
- 7月8日取样测定，根、茎都以K含量最高，N含量次之，P含量最低，而叶部和铃壳以N含量最高，K含量次之。The measuremnt on July 8 and Sep. 8 of the nutrient content in the roots and stems showed. The first one was K, second N, third P; but leaves and the bell shells contained most N, less relatively K.
- 土壤微生物edaphon
- 用热分析、X射线衍射及N含量分析研究了三斜仲钨酸铵（NH4）10H2W12O4210·H2O的热分解机理；The thermal decomposed mechanism of orthorhombic ammonium paratungstate,(NH4)10H2W12O4210H2O,was investigated by DAT,XRD and analysis of N content.
- 有些土壤不适于耕作。Some soils are not suitable for farming.
- 那里的土壤呈锈红色。The soils have a rusty red tint.
- 在此条件下,获得的甲壳素产品为白色粉状固体,其N含量为6.87%,灰分为1.19%,水分为8.37%。 产率为29.97%。The obtained chitin under conditions obove mentioned was white powdery solid with the nitrogen content 6.87%25,ash content 1.19%25,water content 8.37%25,and production ratio 29.97%25.
- 父亲耙平土壤做播种床。Father raked the soil smooth for a seed-bed.
- 土壤污染soil contamination
- 无论夏、冬季 ,这 3条河流水体中的NO3 N均是无机氮的主要存在形态 .NO 3 N was the main form of dissolved inorganic N (DIN) in river water in summer and winter.
- 那个县的土壤十分贫瘠。The soil in that county is very poor.
- N、P含量contents of N and P
