文献类型： 外文期刊

作者： He, Y. D. ¹ ; Cui, X. B. ³ ; Wang, L. X. ¹ ; Liu, Y. X. ¹ ; Jing, T. ¹ ; Wang, B. Z. ¹ ;

作者机构： 1.Chinese Acad Trop Agr Sci, Haikou Expt Stn, Haikou 570102, Peoples R China

2.Hainan Key Lab Banana Genet Improvement, Haikou 570102, Peoples R China

3.Hainan Univ, Environm & Plant Protect Coll, Haikou 570228, Peoples R China

期刊名称：2ND INTERNATIONAL CONFERENCE ON AGRICULTURAL AND BIOLOGICAL SCIENCES (ABS 2016)

ISSN： 1755-1307

年卷期： 2016 年 41 卷

页码：

收录情况： SCI

摘要： A soil column method was used to analyse the characteristics of the movement and transformation of potassium (K) in a latosol. The internal temperature was maintained at 28 to 30 C-circle. The distances moved by the added K were 50 to 100 mm after 7 and 28 d, respectively. Potassium moved faster within 7 d during the incubation time of 28 d. The concentrations of water-extractable K, and exchangeable K, had significant negative linear relationships with distance from fertiliser placement in the region of K movement. In incubation time, water-extractable K and exchangeable K had significant effects on the concentration distributions for fertiliser micro-sites, but had no significant effects on non-exchangeable K. Most of K was still in an available form at fertiliser micro-sites after moving into the soil except that 4.22% to 11.19% of all applied K was fixed by soil.