| 柳开楼1，2，胡秋萍1，胡惠文1，吕丰娟3，叶会财1，黄庆海1，李大明1，余喜初1.长期施猪粪土壤As 补给与水稻As 吸收的量化关系[J].广东农业科学,2017,44(10):40-45 |
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长期施猪粪土壤As 补给与水稻As 吸收的量化关系 |
| Soil As supply amount under long-term application of pig manure and its relationship with As uptake of rice |
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| DOI：10.16768/j.issn.1004-874X.2017.10.007 |
| 中文关键词: 猪粪 土壤As 含量 水稻As 吸收量 水稻土 |
| 英文关键词: pig manure soil As content As uptake of rice paddy soil |
| 基金项目:江西省自然科学基金（20151BAB214008）；农业部植物营养与肥料学科群2014 年开放基金；国家公
益性行业（农业）科研专项经费（201203030） |
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| 中文摘要: |
| 为明确猪粪施用后土壤砷（As）的形态变化及其在土壤- 植物体系中的迁移机制，基于1981
年开始的红壤稻田有机肥长期定位试验，分析了不施肥（CK）、化肥配施（NPK）、化肥配合早稻猪粪施用
（NPKM1）和化肥配合晚稻猪粪施用（NPKM2）等处理土壤As 的形态分异规律以及水稻籽粒和秸秆中As
的累积变化特征。结果表明： NPKM1 和NPKM2 处理土壤总As 含量分别比CK 提高148.71% 和282.11%，
土壤As 储量分别增加120.35% 和205.02%；与NPK 处理相比，NPKM1 和NPKM2 处理土壤As 含量分别增
加90.48% 和192.64%，土壤As 储量分别增加83.28% 和153.71%。且不同形态As 含量也均呈现出猪粪还
田处理显著增加，但NPKM2 处理显著高于NPKM1 处理。土壤As 形态中主要以Fe-As 比例最高，其次为
Al-As 和Res-As，而Ca-As 和Ex-As 含量最少。与NPKM1 处理相比，NPKM2 处理的Ex-As、Al-As、Fe-
As、Ca-As 和Res-As 含量和储量均显著较高。同时，NPKM1 和NPKM2 处理秸秆和籽粒中As 含量和吸收量
也显著提高。通过拟合方程表明，土壤Ex-As 对水稻As 吸收的贡献率最高。 |
| 英文摘要: |
| To clear the changes of soil As（ Arsenic） forms after long-term application of pig manure and its migration mechanism in soil-plant system，four treatments including fertilizer（ CK），NPK fertilizer（ NPK），NPK
fertilizer with pig manure in early rice（ NPKM1） and NPK fertilizer with pig manure in late rice（ NPKM2） were set
based on one long-term fertilization experiment（ since 1981），then，soil As forms and As uptake of grain and straw
were analyzed. The results showed that: compared with CK，the soil total As content in NPKM1 and NPKM2 increased
by 148.71% and 282.11% respectively，their soil As pools increased by 120.35% and 120.35% respectively.
Compared with NPK treatment，the soil total As content in NPKM1 and NPKM2 increased by 90.48% and 192.64%
respectively，their soil As pools increased by 83.28% and 83.28% respectively. Meanwhile，soil As forms in NPKM1
and NPKM2 increased significantly than CK and NPK. The proportion of Fe - As was the highest among all soil
forms，followed by Al-As and Res-As，but Ca-As and and Ex-As were smallest. Compared with NPKM1，the
contents and pools of Ex-As，Al-As，Fe-As，Ca-As and Res-As in NPKM2 significantly increased. At the same
time，NPKM1 and NPKM2 could significantly increase the As uptake of straw and grain than other treatments. It was
found that the soil Ex-As had the highest contribution to rice As uptake through fitting equation. |
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