密度与施肥对谷子产量及其相关性状的影响研究.doc

文档介绍：
密度与施肥对谷子产量及其相关性状的影
响研究#
赵国顺1,陈素省1,张凤路2**
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(1. 保定市农研所,河北保定 071001;
2. 河北农业大学农学院,河北省作物生长调控实验室,河北保定 071001)
摘要:为研究谷子新品种保 213 适宜的留苗密度和施肥量,于 2011~2012 年在保定市农业
科学研究所试验基地,安排了留苗密度(- 株/m2)、N 用量(0-)、P2O5 用
量(0- /m2)、K2O 用量(0-)4 因素正交试验,系统比较了不同处理对产量及
相关性状的影响。结果表明:种植密度对籽粒产量、株高、成穗率及其相关性状有显著影响,
随着密度的升高,单株干物质、穗重、成穗率、穗长显著降低降低,但群体的株高、产量显
著增加;在一定供氮水平上 P、K 肥的配比对谷子的生长发育和产量的提高有显著影响;不
同处理对生育期、出谷率和千粒重无显著影响。本研究对指导谷子优质高产栽培具有重要的
理论和实践意义。
关键词:谷子;密度;施肥;生长发育;产量
中图分类号:
Studies on the effect of density and fertilizer on the yield and
its relative characters of millet
Zhao Guoshun1, Chen Susheng1, Zhang Fenglu2
(1. Institute of Agriculture Sciences of Baoding, HeBei BaoDing 071000;
2. College of Agronomy, Agricultural University of Hebei, Key laboratory of Crop Growth
Regulation of Hebei Province, HeBei BaoDing 071001)
Abstract: Experiment was conducted at experimental station of Institute of agriculture science of
Baoding during 2011-2012 in order to get the suitable density and fertilizer amount for higher
yield of millet variety Bao 213. A 4 factor Orthogonal experimental design was set with plant
density (- plants/m2) , N application rate (0-), P2O5 application rate (0-)
and K2O application rate (0-). The effects of different treatments on yield and its relative
characters were s