水稻超高产栽培条件下的适宜栽插期研究  

Study on proper transplanting time under super high-yield cultivating conditions in rice

作　　者：商文楠[1] 孙涛[1] 曹海峰[1] 张俊宝[1] 金学泳[1] 

机构地区：[1]东北农业大学农学院,黑龙江哈尔滨150030

出　　处：《东北农业大学学报》2006年第6期745-749,共5页Journal of Northeast Agricultural University

基　　金：农业部攻关项目(2001-BA508-B07);黑龙江省科技厅攻关项目(G99B2-8)

摘　　要：以龙粳9号为供试品种,在肥力密度相同的条件下,设5个栽插时期处理,研究其对水稻生育和产量及产量构成因素的影响。结果表明,处理间的本田生育天数变化差异明显,但成熟期差异却只有1～2 d;不同处理的分蘖及成穗率、叶面积指数、抽穗至成熟期的干物质积累量和产量都呈现C>D>B>E>A的趋势。产量构成因素的各项指标以C,D,B较好,适宜栽插期范围为5月13日～27日。其中以处理C(5月20日)的产量(11 573.8 kg.hm-2)为最高,栽插时期最佳,其次是处理D(5月27日)和(B 5月13日)。Five different transplanting times were designed to study the effects of different transplanting times on rice growth, yield and yield components under same application amount of fertilizer and same density with Longjing 9. The results were as follows： The difference of field growing and developing days change under different treatments were obvious,but the difference of maturation period were one or two days; The currents of productive tiller percentage, leaf area index, accumulation amount of dry matter from heading to maturity stage and yield were C〉D〉B〉E〉A. The various indexes of yield components of C, D, B were better, May 13 to 27 was the proper transplanting time range. The yield of treatment C was the highest and the transplanting time was the best, D and B were also proper transplanting times.

关 键 词：水稻 栽插期 生育 超高产 

分 类 号：S511[农业科学—作物学] S5