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- 結果表明,DCD對3種土壤N2O釋放及土壤NO3--N含量有明顯抑制作用,隨DCD濃度增加,其抑制效果越顯著。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
- 種植揚稻6號的土壤NO3-濃度、硝化強度以及AOB數量總是高於農墾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
- 施用有機肥可增加土壤NO3--N含量,對NH4+-N含量的影響較小。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大量累積的重要原因,施用有機肥以及NPK合理配合施用可明顯地減少土壤NO3-N的殘留。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日取樣測定，根、莖都以K含量最高，N含量次之，P含量最低，而葉部和鈴殼以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
- 用熱分析、X射線衍射及N含量分析研究了三斜仲鎢酸銨（NH4）10H2W12O4210·H2O的熱分解機理；The thermal decomposed mechanism of orthorhombic ammonium paratungstate,(NH4)10H2W12O4210H2O,was investigated by DAT,XRD and analysis of N content.
- 有些土壤不適於耕作。Some soils are not suitable for farming.
- 那裡的土壤呈銹紅色。The soils have a rusty red tint.
- 在此條件下,獲得的甲殼素產品為白色粉狀固體,其N含量為6.87%,灰分為1.19%,水分為8.37%。 產率為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.
- 父親耙平土壤做播種床。Father raked the soil smooth for a seed-bed.
- 土壤污染soil contamination
- 無論夏、冬季 ,這 3條河流水體中的NO3 N均是無機氮的主要存在形態 .NO 3 N was the main form of dissolved inorganic N (DIN) in river water in summer and winter.
- 那個縣的土壤十分貧瘠。The soil in that county is very poor.
- N、P含量contents of N and P
