摘要
通过大田试验,研究了地膜覆盖、秸秆覆盖、强化栽培和裸地旱作处理下3个水稻品种生育后期水稻田间生态、生长发育、有关生理生化特性、产量形成、产量及水分利用效率的差异。结果表明,水稻生育后期田间生态条件地膜覆盖较秸秆覆盖差,秸秆覆盖不仅有较好的保墒效应,且具有根系活力高、叶片衰老速度慢、后期剑叶可溶性糖含量高等方面的优势,但因前期生长的滞后,各品种最终产量较地膜覆盖低12.7%~17.1%;覆盖处理和强化栽培各品种产量均高于裸地旱作,强化栽培产量因品种不同与两种覆盖处理有所差别(其中冈优527产量较地膜覆盖低10.5%,较秸秆覆盖高8.4%,D优363产量较地膜覆盖和秸秆覆盖高0.5%和13.1%,汕优63则较两种覆盖处理分别低18.2%和2.0%);强化栽培与裸地旱作相比较,强化栽培各品种的灌溉水利用率较裸地旱作高12.9%~9.3%,产量较裸地旱作高24.7%~30.2%,说明强化栽培是实现水分高效利用的一种有效技术。
In this paper,field experiment was conducted to investigate the differences of field ecological condition,growth and development,relevant physiological and biochemical characteristics,yield formation,grain yield,and water use efficiency of three rice varieties under conditions of film mulch,straw mulch,intensified cultivation,and no mulch.Compared to film mulch,straw mulch had great advantages in enhancing root activity,retarding leaf aging,and increasing young leaf's soluble sugar content,but the final gra...
出处
《生态学杂志》
CAS
CSCD
北大核心
2006年第4期410-416,共7页
Chinese Journal of Ecology
基金
国家"863"节水农业重大专项(2002AA2Z4011)
国家粮食丰产科技工程资助项目(2004BA520A05)
关键词
水稻
节水抗旱
生理生态条件
产量
rice
water-saving and drought-resistance
physiological and ecological condition
grain yield.
