小粒花生安花3号单粒精播种植密度探究  

Single-Seed Sowing Density of a Small-Seed Peanut Cultivar'Anhua 3'

作　　者：吕娇艳 王芳 邢晓宁[1] 王海莉[1] 沈希华[1] 芦连勇[1] 王东彬 华福平[1] LV Jiao-yan;WANG Fang;XING Xiao-ning;WANG Hai-li;SHEN Xi-hua;LU Lian-yong;WANG Dong-bin;HUA Fu-ping(Anyang Academy of Agricultural Sciences,Anyang 455000,PRC;Anyang Bureau of Agriculture and Rural Affairs,Anyang 455000,PRC)

机构地区：[1]安阳市农业科学院,河南安阳455000 [2]安阳市农业农村局,河南安阳455000

出　　处：《湖南农业科学》2024年第8期15-19,共5页Hunan Agricultural Sciences

基　　金：安阳市科技攻关计划项目(2023C01NY040)。

摘　　要：为了探究安花3号单粒精播最适合的种植密度,通过5个密度的单粒精播和传统密度双粒穴播(CK)比较试验,结果表明:较低密度(≤27万粒/hm^(2))单粒精播的植株农艺性状与CK没有明显差异,随密度的增加,植株的主茎高和侧枝长随之增加,当密度为≥30万粒/hm^(2)时显著高于CK;单粒精播的单株饱果数和单株生产力高于CK,提高幅度随密度的增加而降低;单粒精播的百果重随密度的增加而降低,密度≥33万粒/hm^(2)时显著低于CK;单粒精播的产量随种植密度变化呈抛物线,密度为27~30万粒/hm^(2)时显著高于CK,当密度为30万粒/hm^(2)、株行距为10.0 cm×33.3 cm时,产量和净产值最高。安花3号在安阳地区单粒精播合适的种植密度为27~30万粒/hm^(2),株行距为10.0~11.1 cm×33.3 cm。To explore the most suitable single-seed sowing density of the small-seed peanut cultivar'Anhua 3',a comparative experiment was conducted with single-seed sowing at five densities and conventional double-seed sowing(CK).The results showed that the agronomic traits of plants in the single-seed sowing groups were not significantly different from those in CK when the sowing density was≤270000 seeds/hm^(2).With the increase in sowing density,the main stem height and lateral branch length increased.When the density was≥300000 seeds/hm^(2),the main stem height and lateral branch length in the single-seed sowing groups were significantly higher than those in CK.The single-seed sowing groups had higher number of full pods per plant and higher productivity per plant than CK,and the improving degrees of single-seed sowing relative to CK decreased as the sowing density increased.The 100-pod weight decreased as the density increased,and it was significantly lower in single-seed sowing groups than in CK when the sowing density was≥330000 seeds/hm^(2).The peanut yield followed a parabolic curve as the sowing density increased.When the density was within the range of 270000-300000 seeds/hm^(2),single-seed sowing groups had significantly higher yields than CK.The yield and net output value were the highest when sowing was carried out with the density of 300000 seeds/hm^(2) and the plant and row spacing of 10.0 cm×33.3 cm.The suitable density and plant and row spacing for single-seed sowing of'Anhua 3'in Anyang was 270000-300000 seeds/hm^(2) and 10.0-11.1 cm×33.3 cm,respectively.

关 键 词：单粒精播 密度 产量 安花3号 花生 

分 类 号：S565.2[农业科学—作物学]