单粒精播密度对幼龄果园间作花生生长发育及产量的影响  

Effects of Single-Seed Precision Sowing Density on Growth and Yield of Intercropped Peanut among Young Orchard

作　　者：权宝全[1] 王国桐[1] 白冬梅[1] 田跃霞[1] 薛云云[1] 刘佳[1] 吕瑞洲[1] 

机构地区：[1]山西省农业科学院经济作物研究所,山西汾阳032200

出　　处：《作物杂志》2015年第3期83-86,共4页Crops

基　　金：国家花生产业技术体系(CARS-14);山西省农业科学院重点项目(2012yzd08)

摘　　要：为了探明山西幼龄果园间作花生单粒精播的最适密度,以晋花7号花生为试验材料,在幼龄果园间作条件下,研究了不同单粒精播密度与双粒穴播对花生农艺性状、干物质积累动态及产量的影响。结果表明,花生主茎高和侧枝长随精播密度增加而逐渐增加,单株分枝数、单株结果数、双仁果率和饱果率均随密度增加而减少。当单粒精播密度为18.0和21.0万穴/hm2时,干物质积累量与积累速率均高于对照(双粒穴播处理)。由2014年试验数据结合产量趋势方程得出,单粒精播最适密度为19.18万穴/hm2,与对照双粒穴播相比,可节种20.8%,增产7.39%。The purpose of this study was to explore the appropriate density of single-seed sowing for young orchard intercropped peanut in Shanxi province. Peanut cultivar Jinhua 7 was used to study the difference between singleseed sowing and double-seed sowing on the agronomic traits, dry weights and yields under the young orchard intercropped mode. The results showed that with the increasing of sowing density, main stem height and lateral branch length were increased. On the contrary, number of branch, pod per plant, ratio of double seed pod and ratio of mature seed pod were all decreased. The dry weight and the rate of accumulation were higher than the control treatment under the appropriate single-seed sowing density（ 180K holes/hm^2 and 210K holes/hm^2）. The appropriate density were 191 800 holes/hm^2 ,with a yield increase of 7.39% and a reduction for sowed seed of 20.8% , according to the experimental data of 2014.

关 键 词：花生 单粒精播 农艺性状 干物质积累 产量 

分 类 号：S66[农业科学—果树学] S565.2[农业科学—园艺学]