摘要
合理的种植密度能提高玉米单产,为指导绥阳县山区玉米种植,2013年在黄杨镇开展了对中单808种植密度的试验.结果表明：种植密度4.8万株/hm2产量最高,单产达9.3t/hm2,进一步作线性分析表明,产量曲线最高值对应的密度是4.8773万株/hm2.建议山区玉米在土壤肥力好的地块,种植密度4.5万～4.9万株/hm2株为好;在土壤肥力低的地块,种植密度4.7万～5万株/hm2为好.
Appropriate planting density can increase the yield of maize, for guide the maize production in mountainous area of Suiyang, planting density of Zhongdan 808 was studied in 2013 of Huangyang town. The results showed that planting density at 48000hills/hm2, the yield was highest, it＇s 9.3t/hm2, from the regression relation of yield and planting density, the highest yield is at 48773hills/hm2. Finally proposed that under high fertility soil, the hest planting density is 45000~49000hitls/hm2 under low fertility soil, the best planting density is 47000~50000hills/hm2.
出处
《耕作与栽培》
2014年第2期26-27,共2页
Tillage and Cultivation
关键词
绥阳
中单808
种植密度
Suiyang
Zhongdan 808
planting density
