| 紫色土的钾素形态转化 |
| |
| 引用本文： | 游翔,朱波,谢尚春,彭奎. 紫色土的钾素形态转化[J]. 山地学报, 2001, 0(Z1) |
| |
| 作者姓名： | 游翔 朱波 谢尚春 彭奎 |
| |
| 作者单位： | 中国科学院成都山地灾害与环境研究所 成都610041(游翔，朱波)，四川温江农业学校 成都611100(谢尚春)，中国科学院成都山地灾害与环境研究所 成都610041(彭奎) |
| |
| 基金项目： | 国家自然科学基金 (4 960 10 0 6)资助 |
| |
| 摘 要： | 采用室内盆钵培养方法 ,研究侏罗纪蓬莱镇组 (J3P)、沙溪庙组 (J2 S)、遂宁组 (J3S)和白垩纪城墙岩群 (K1 C)紫色岩层发育土壤的钾素形态转化。结果表明 ,一年后 ,紫色土交换性钾增加 2 0mg.kg- 1 以上 ,非交换性钾增加 10 .5 8mg .kg- 1 ,结构钾减少了 31.5 6mg .kg- 1 。交换性钾、非交换性钾增加顺序分别为 :J3P >J3S >J2 S >K1 C及K1 C >J3P >J2 S >J3S ;结构钾降低的顺序为 :J3P >J3S >K1 C >J2 S。紫色土交换性钾、非交换性钾及结构钾互为消长有利于土壤源源不断地供给作物有效态钾素 ,一定程度弥补因作物带走的钾。
|
| 关 键 词： | 紫色土 钾素 形态转化 |
Studies on forms transformation of potassium in purple soil |
| |
| YOU Xiang,ZHU Bo,XIE Shang-chun. Studies on forms transformation of potassium in purple soil[J]. Journal of Mountain Research, 2001, 0(Z1) |
| |
| Authors: | YOU Xiang ZHU Bo XIE Shang-chun |
| |
| Affiliation: | YOU Xiang~1,ZHU Bo~1,XIE Shang-chun~2 |
| |
| Abstract: | Indoor incubation experiments were conducted to study potassium forms transformation in the soil developed from the purplish rocks formed in the Jurassic (group penglaizhen-J3P, group shaximiao-J2S,and group suining-J3S) and Cretaceous (group chengqiangyan-K1C) period. Results showed exchangeable K of the purple soil increases more than 20 mg/kg,non-exchangeable K increases about 10.58 mg/kg.But mineral K decreased 31.56 mg/kg.The exchangeable K and non-exchangeable K increase in the sequence as J3P> J3S>J2S>K1C and K1C >J3P> J2S> J3S respectively, whereas mineral K decrease in the sequence as J3P> J3S >K1C >J2S.The relationships between exchangeable , non-exchangeable and mineral K in purple soil indicate the continuous supply available K to crops, so that ,to some extent, make up a loss of potassium absorbed by corps . |
| |
| Keywords: | purple soil potassium forms transformation |
| 本文献已被 CNKI 等数据库收录！ |
|
