[1]兰叶青,毛景东,计维浓.添加剂对土壤外加硒形态变化的影响[J].南京农业大学学报,1994,17(1):78-82.[doi:10.7685/j.issn.1000-2030.1994.01.014]
 Lan Yeqing,Mao Jingdong,Ji Weinong.THE EFFECTS OF ADDITIVES ON FORMS OF Se IN SOIL WYTH SUPPLEMENTAL Se[J].Journal of Nanjing Agricultural University,1994,17(1):78-82.[doi:10.7685/j.issn.1000-2030.1994.01.014]
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添加剂对土壤外加硒形态变化的影响()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
17卷
期数:
1994年1期
页码:
78-82
栏目:
出版日期:
1994-02-28

文章信息/Info

Title:
THE EFFECTS OF ADDITIVES ON FORMS OF Se IN SOIL WYTH SUPPLEMENTAL Se
作者:
兰叶青毛景东计维浓
南京农业大学基础课部
Author(s):
Lan Yeqing Mao Jingdong Ji Weinong
Dept of Basic Courses, Nanjing Agric Univ, Nanjing 210014
关键词:
形态 添加剂 土壤
Keywords:
selenium form additive soil
分类号:
S143.71
DOI:
10.7685/j.issn.1000-2030.1994.01.014
文献标志码:
A
摘要:
报道了在恒温培养下,几种添加剂对外加硒在黄棕壤中不同形态的影响.试验表明,与对照土壤样品比较,经添加KH2PO4、K2SO4、CaCO3、苜蓿和苜蓿+CaCO3,其可溶态K2SO4-Se和残渣态residue-Se的百分含量均有不同程度的提高.除添加CaCO3外.加入其它添加剂时KN2PO-Se的百分含量有大幅度的降低,其中以添加KH2PO4的最为明显.土壤添加K2SO4后氧水提取态NH3·H2O-Se变化很小,而其余处理中的下降较多.所有试验中,随着培养时间的增加,交换态KH2PO4-Se呈缓慢下降趋势,残渣态residue—Se呈缓慢上升趋势,两者之间相互消长.在整个培养期间.经CaCO3处理后的土壤,交换态KH2PO4-Se和氨水提取态NH3·H2O-Se的百分含量相近,而在其余的处理中交换态KH2PO4-Se小于氨水提取态NH3·H2O-Se的百分含量.
Abstract:
The effects of different additives on forms of selenium supplemented soils were studied. The results showed that the additives KH2PO4, K2SO4, CaCO3, alfalfa plus CaCO3 increase the contents of K2SO4-Se(F1) and residue-Se(F5). Obviously, KH2PO4-Se(F2) diminished in all treatments except CaCO3. NH3. H2O-Se(F3) in the soil with supplemental K2SO4 changed slightly, but diminished in the soil with the other addivives. In all experiments, F2 decreased and F5 increased with the extension of incubation time. In addition, during the incubation, the percentage of F2 was usually lower than that of F3 with the exception of the treatment with CaCO3, in which the contents of F2 was approximately equal to that of F3.

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备注/Memo

备注/Memo:
中国科学院土壤圈物质循环开放研究室课题
更新日期/Last Update: 1994-02-28