密度和施氮水平对冬小麦临汾138产量与品质的影响研究

Effect of Density and Applied Nitrogen on the Output and Quality of Winter Wheat Linfen 138

通过5个密度和5个施氮水平对冬小麦品种临汾138产量与品质影响的研究结果表明，密度在300万～375万株／hm^2范围内，产量最高，达6900.98～7016．55kg／hm^2，与其它处理间差异显著；密度对品质的影响较小。处理间差异不显著。随着施氮量的增加产量和品质协同提高，当施氮量在210～240kg／hm^2时，产量最高，达7076.52～7092．31kg／hm^2；施氮量对品质的影响差异显著。因此，临汾138的密度以300万～375万株／hm^2为宜，施氮量宜控制在210～240kg／hm^2。

Effect of 5 density levels and 5 amounts of applied nitrogen on yield and quality of winter wheat Linfen 138 was studied. The results showed that the yield reach to the highest（6 900.98～7 016.55 kg/hm^2） when wheat density was from 3 million to 3.75 million plants/hm^2, and had significant difference with other treaments. The density had little effect on the quality and the treatments had no significant difference. The yield and quality all increased with the increasing of applied nitrogen amounts. When applied nitrogen was from 210 to 240 kg/hm^2 the yield was the highest （7 076.52～7 092.31 kg/hm^2） and the effect of applied nitrogen amounts on quality had significant difference. So, the best density level of Linfen 138 was from 3 million to 3.75 million plants/hm^2, the amount of applied nitrogen should be controlled between 210 and 240 kg/hm^2.