exchangeable cations 中文意思是什麼
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Soil quality. determination of the potential cation exchange capacity and exchangeable cations using barium chloride solution buffered at ph
土壤質量.用氯化鋇ph溶液測定離子交換能力和可交換的離子 -
Concentrations of exchangeable cations of soil and their seasonal dynamics in three representative forests of dinghushan biosphere reserve
鼎湖山主要森林類型土壤交換性陽離子含量及其季節動態特徵 -
Our aim is to provide reference data for the mechanism of the effects of ree on crops and the safety evaluation of re used in agriculture. 1. in soil culture experiment, re applications with appropriate dose in dry condition increased the contents of soil available n, whose no - effect value were 505mg / kg at eighth week, whereas higher levels of re had negative effects, re applications with both appropriate and higher dose in inundated condition reduced the contents of soil nh / - n and hydrolysable n. re treatment concentrations showed significant positive correlation with the contents of soil exchangeable re. and significant negative correlation with the contents of soil available p and soil ph value. there was no significant effects of re on soil exchangeable cations, but applications of re increased the contents of soil water soluble cations, especially that of ca2 * and mg2 +
兩種培養條件下，稀土處理濃度與土壤交換態稀土含量成正比，與有效磷含量、土壤ph成反比，對土壤交換態鹽基離子含量無顯著影響，但通過置換作用增加了水溶態離子，尤其是ca ~ （ 2 + ） 、 mg ~ （ 2 + ）離子的含量；第二周稀土處理增加交換態zn含量，對交換態fe有降低作用，旱培條件下增加交換態mn含量，淹水條件下對其有降低作用；第八周稀土處理均提高交換態fe 、 mn 、 zn含量，其機制主要與稀土降低土壤ph有關。 -
Soil quality - determination of thepotential cation exchange capacity and exchangeable cations using barium chloride solution buffered at ph 8, 1 iso 13536 : 1995
土質. ph值為8 . 1時利用氯化鋇緩沖溶液測定可交換陽離 -
Soil quality - chemical methods - determination of the potential cation exchange capacity and exchangeable cations using barium chloride solution buffered at ph 8. 1
土質.化學方法. ph值為8 . 1時利用氯化鋇緩沖溶液對潛在陽離子交換能力和可交換陽離子的測定
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