Dynamics of Reductive Organic Acid and the Relationship with Growth of Rice in Cold-waterlogged Paddy Soil
-
摘要: 低产冷浸田在江南稻区分布广泛。在福建闽侯县单季稻生育期,比较分析冷浸田与同一微地貌单元内非冷浸田水稻根系土壤的还原性有机酸种类、浓度、动态及与水稻生长的关系。结果表明,冷浸田还原性有机酸主要以草酸为主,占有机酸总量的80%以上。垄口与垄中地形分别发育的冷浸田水稻各生育期有机酸均显著高于对应的非冷浸田。随着生育期的进程,有机酸与亚锰呈递增趋势,而亚铁呈递减趋势。还原性有机酸与水稻生物量及籽粒产量均呈显著负相关,回归方程表明,还原性有机酸对籽粒产量的障碍贡献要高于亚铁而低于亚锰。Abstract: Cold-waterlogged paddy field with low-yield are very common in south China.During growing period of the single-crop rice in Minhou County of Fujian,the kinds,concentrations and dynamics of reductive organic acids were analyzed in the soil around the rice roots grown in the cold-waterlogged paddy fields comparing to that of the non-cold soak fields within the same micro-geomorphic units,and the relationship between reductive organic and rice growth were also detected.The results showed that the organic reducing acids in the cold soak fields were mainly consist of oxalic acids,accounting for more than 80% of the total organic acids.Amount of organic acids in cold soak fields developed in different terrains significantly were higher than those in non-cold soak fields.As the rice growing,the amounts of organic acids and sodium manganese were correspondingly increasing,while ferrous decreasing.Significantly negative correlation between organic reducing acids and rice biomass and grain yield was found.Regression equations indicated that organic reducing acids showed higher inhibitive effect on the grain yield,compared to ferrous and manganite.
-
Key words:
- cold-waterlogged paddy soil /
- reductive organic acids /
- ferrous /
- manganite /
- rice /
- yield
-
[1] 张晋科,张凤荣,张迪,等.2004年中国耕地的粮食生产能力研究[J].资源科学,2006,28(3):44-51. [2] 莫淑勋.土壤中有机酸的产生、转化及对土壤肥力的某些影响[J].土壤学进展,1986,(4):86-90. [3] 彭娜,王凯荣,BURESH R J,等.不同水分条件下施用稻草对土壤有机酸和有效磷的影响[J].土壤学报,2006,439(2):347-351. [4] 蔡妙珍,林成永,罗安程,等.过量Fe2+对水稻生长和某些生理性状的影响[J].植物营养与肥料学报,2002,8(1):96-99. [5] 毕于运.关于中低产田几种主要划分方法的评价[J].农业区划,1993,(1):57-60. [6] 覃都,陈铭学,周蓉,等.锰-镉互作对水稻生长和植株镉、锰含量的影响[J].中国水稻科学,2010,24(2):189-195. [7] 孙宝利,黄金丽,贺小蔚,等.高效液相色谱法测定土壤中有机酸[J].分析试验室,2010,29(S1):51-54. [8] 鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000:82-100. [9] 中国科学院上海植物生理研究所.现代植物生理学[M].北京:科学出版社,2003:202. [10] 李德华,向春雷,姜益泉,等.低磷胁迫下水稻不同品种根系有机酸分泌的差异[J].中国农学通报,2005,(3):186-201. [11] 陈金萍,周延峰.水稻僵苗原因与防治措施[J],农民致富之友,2013,(9):23-25. [12] 周卫,林葆.棕壤中肥料钙迁移与转化模拟[J].土壤肥料,1996,(1):17-23. [13] 李清华,王飞,何春梅,等.福建省冷浸田形成、障碍特性及治理利用技术研究进展[J].福建农业学报,2011,26(4);681-685. [14] 王秋菊,崔战利,王贵森,等.土壤锰的研究现状主展望[J].黑龙江八一农垦大学学报,2005,17(3):39-42. [15] 陈春宏,张耀东,张春兰,等.铁、锰相互作用及其对植物生理生化的影响[J].1992,(6):9-12. -
点击查看大图
计量
- 文章访问数: 120
- HTML全文浏览量: 36
- PDF下载量: 0
- 被引次数: 0
下载:
