钙镁水滑石对双季稻产量及稻米镉积累的影响

田琴琴; 张菲婷; 陈娜娜; 郑德超; 吴思; 邓骅; 吴小京; 喻鹏; 易镇邪

doi:10.13870/j.cnki.stbcxb.2023.03.045

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钙镁水滑石对双季稻产量及稻米镉积累的影响

更新时间：2025-03-12

- 钙镁水滑石对双季稻产量及稻米镉积累的影响
- Effect of Calcium Magnesium Hydrotalcite on Yield and Cadmium Accumulation of Double Cropping Rice
- 水土保持学报 2023年37卷第3期页码：353-361
- 作者机构：
  
  1. 湖南农业大学农学院,长沙,410128
  2. 郴州市农作物种子储备和技术推广站,湖南,郴州,423000
  3. 湖南农业大学化学与材料科学学院,长沙,410128
- 作者简介：
  
  [ "田琴琴(1994—),女,在读硕士生,主要从事作物高产高效栽培理论与技术研究。E-mail:2388355332qq.com" ]
- 基金信息：
  
  青海省重点研发与转化计划项目(2021-GX-172)
- DOI：10.13870/j.cnki.stbcxb.2023.03.045
  中图分类号： X53
- 纸质出版：2023
- 稿件说明：
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田琴琴, 张菲婷, 陈娜娜, 等. 钙镁水滑石对双季稻产量及稻米镉积累的影响[J]. 水土保持学报, 2023,37(3):353-361.

TIAN Qinqin, ZHANG Feiting, CHEN Nana, et al. Effect of Calcium Magnesium Hydrotalcite on Yield and Cadmium Accumulation of Double Cropping Rice[J]. 2023, 37(3): 353-361.
田琴琴, 张菲婷, 陈娜娜, 等. 钙镁水滑石对双季稻产量及稻米镉积累的影响[J]. 水土保持学报, 2023,37(3):353-361. DOI： 10.13870/j.cnki.stbcxb.2023.03.045.

TIAN Qinqin, ZHANG Feiting, CHEN Nana, et al. Effect of Calcium Magnesium Hydrotalcite on Yield and Cadmium Accumulation of Double Cropping Rice[J]. 2023, 37(3): 353-361. DOI： 10.13870/j.cnki.stbcxb.2023.03.045.

摘要

为研究不同用量钙镁水滑石对镉污染稻田土壤特性、双季稻产量与稻米镉积累的影响

探讨镉污染双季稻田钙镁水滑石的最佳施用方式。2021年

以早稻品种"湘早籼45号"和"陆两优996"

晚稻品种"创两优669"和"玉针香"为试验材料

在湖南省郴州市良田镇重度镉污染稻田(全镉含量1.16 mg/kg)开展大田试验

比较研究钙镁水滑石(0

CK;早稻基施3 000 kg/hm2

T1;早稻基施1 500 kg/hm2

T2;早稻基施750 kg/hm2+晚稻基施750 kg/hm2

T3)4个处理下土壤特性、双季稻产量构成与植株镉积累情况。结果表明:(1)钙镁水滑石可提高土壤pH与碱解氮、速效钾、速效磷含量

早稻成熟期分别提高0~3.06%

4.30%~13.80%

6.67%~40.00%

25.53%~30.47%;晚稻成熟期分别提高1.56%~4.07%

11.79%~14.50%

15.79%~31.58%

3.73%~17.17%;增幅表现为T1＞T2＞T3。(2)施用钙镁水滑石可降低土壤有效镉含量

早、晚稻成熟期各降低5.26%~42.86%

18.19%~36.84%;降幅表现为T1＞T2＞T3。(3)糙米镉含量和成熟期植株地上部镉积累量以T1最低

T2、T3次之

CK最高

"湘早籼45号"分别降低33.33%~44.44%

4.89%~20.76%;"陆两优996"分别降低30.00%~60.00%

6.00%~30.98%;"玉针香"分别降低27.78%~50.00%

15.93%~34.07%;"创两优669"分别降低26.67%~60.00%

12.58%~28.56%。(4)钙镁水滑石使早、晚稻产量分别提高4.11%~10.79%

1.69%~11.29%。"湘早籼45号"、"创两优669"和"玉针香"产量以T1处理最高

陆两优996产量以T2处理最高

除玉针香外

各品种T1和T2处理产量差异不显著。可见

较大的钙镁水滑石施用量对水稻的增产、降镉效果较好

但综合考虑处理间水稻产量与镉含量差异的显著性及钙镁水滑石成本

以钙镁水滑石1 500 kg/hm2较为适宜。

Abstract

In order to study the effects of different amounts of calcium and magnesium hydrotalcite on the soil characteristics of cadmium-contaminated rice fields

the yield of double cropping rice and the cadmium accumulation in rice

and to explore the best application mode of calcium and magnesium hydrotalcite in cadmium contaminated double cropping rice fields

in 2021

field experiments were conducted in the heavy cadmium contaminated rice fields (total cadmium content 1.16 mg/kg) in Liangtian Town

Chenzhou City

Hunan Province

using early rice varieties Xiangzaoxian 45 and Luliangyou 996

late rice varieties Chuang Liangyou 669 and Yuzhenxiang as experimental materials

The soil characteristics

yield components and cadmium accumulation of double cropping rice under four treatments of calcium magnesium hydrotalcite (0

CK; early rice basal application of 3 000 kg/hm2

T1; early rice basal application of 1 500 kg/hm2

T2; early rice basal application of 750 kg/hm2; late rice basal application of 750 kg/hm2

T3) were compared. The results showed that: (1) The application of calcium magnesium hydrotalcite could increase the soil pH and the contents of alkali hydrolyzable nitrogen

available potassium

and available phosphorus

respectively by 0~3.06%

4.30%~13.80%

6.67%~40.00%

and 25.53%~30.47% at the maturity of early rice

respectively

and 1.56%~4.07%

11.79%~14.50%

15.79%~31.58%

3.73%~17.17% at the maturity of late rice

showing a trend of T1 > T2 > T3. (2) Application of calcium and magnesium hydrotalcite could reduce the content of available cadmium in soil. The content of available cadmium in early and late rice ripening stages was reduced by 5.26%~42.86% and 18.19%~36.84% respectively

with a trend of T1 > T2 > T3. (3) The content of cadmium in brown rice and the accumulation of cadmium in the upper part of plant at maturity were the lowest in T1

the second in T2 and T3

and the highest in CK. The content of cadmium in Xiangzaoxian 45 decreased by 33.33%~44.44% and 4.89%~20.76% respectively

that in Luliangyou 996 decreased by 30.00%~60.00% and 6.00%~30.98% respectively

that in Yuzhixiang decreased by 27.78%~50.00% and 15.93%~34.07% respectively

and that in Chuang Liangyou 669 decreased by 26.67%~60.00% and 12.58%~28.56% respectively. (4) The yield of double cropping rice Xiangzaoxian 45

Chuang Liang You 669 and Yuzhen Xiang was the highest in T1

followed by T2 and T3

and the lowest was in CK; The yield of Luliangyou 996 was the highest in T2 treatment

the second in T1 and T3 treatment

and the lowest in CK treatment. Calcium magnesium hydrotalcite increased the yield of early and late rice by 4.11%~10.79% and 1.69%~11.29%

respectively. This experiment shows that the larger application amount of calcium magnesium hydrotalcite has a better effect on rice yield increase and cadmium reduction

but considering the significance of rice yield and cadmium content difference between treatments and the cost of calcium magnesium hydrotalcite

1 500 kg/hm2 calcium magnesium hydrotalcite is more appropriate under this experiment condition.

关键词

Keywords

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