摘要
为水稻机械化直播推广提供技术支持,减轻长江流域春季低温对直播稻芽期的危害,本文研究了液体地膜覆盖对直播稻抵御芽期低温的效果.试验结果表明,水稻芽期液体地膜覆盖有明显的保墒增温作用,采用体积比1∶1稀释液体地膜覆盖,湘早籼24号和株两优2号2个水稻品种的成苗率分别比对照提高了19.25%和22.37%,降低了水稻幼苗的株高,增大了叶龄和单位苗高干质量.表明液体地膜覆盖是直播稻栽培中抵御芽期低温的一项有效技术.
To solve the low-temperature damage and promote the mechanization for direct seeding rice in the Yangtze River area, effects of liquid film mulching on cold resistance of direct-seeding rice at early seedling stage were studied in an artificial climate-room. The results showed that liquid film mulching could effectively increase the temperature and moisture contact in soil. Application of 1 ： 1 dilution of liquid film increased the available seedling rate by 19. 25% for Xiangzaoxian24 and by 22. 37% for Zhuliangyou2 compared with CK respectively, leaf and height. Therefore, the liquid film mulching is dry mass per unit seedling height, and reduced seedling an effective technique in direct-seeding rice production.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2010年第1期99-101,共3页
Journal of South China Agricultural University
基金
863计划项目(2006AA10A307)
农业科技成果转化资金项目(2007GB2E000235)
粤港关键领域重点突破招标项目(2007A020904001)
关键词
液体地膜
覆盖
水稻
直播
出苗率
liquid film
mulching
rice
direct-seeding
available seedling rate
