有限灌溉对荒漠绿洲春玉米产量及产量性状的影响

对干旱环境下临泽荒漠绿洲春玉米进行了有限灌溉试验研究，旨在探究有限灌溉对绿洲玉米农田生产力的影响。结果表明，在所有处理中，全生育期灌水最少的处理MI1玉米籽粒产量比灌水量略高于它的处理MI2和灌水量较高的处理MI4增产25.7%和38.8%，但MI1与其他处理及对照间差异不显著。MI1处理全生育期灌水量最少，其产量不但未显著下降，反而高于灌水最多的对照CK。不同灌溉处理及对照间玉米穗粗、秃顶长、穗行数均不存在显著差异，但个别处理及对照间其他产量性状却存在差异，其中对照CK、处理MI5、MI1的穗长分别比处理MI4增加15.3%、13.6%和12.4%，对照CK和处理MI1、MI5的行粒数分别比MI4处理增加17.3%、13.9%和12.2%，对照CK的穗粒数分别比处理MI4、MI2和MI3增加19.3%、19.1%和14.5%，处理MI1的千粒重分别比MI4、MI5、CK增加26.9%、14.0%和14.0%。

Effect of Limited Irrigation on Grain Yield and Yield Related Traits of Spring Maize in Desert Oasis

Experimental study was conducted in arid environment of Linze desert oasis to evaluate the effect of limited irrigation on maize yield. There are six limited irrigation treatments (including CK) with different irrigation quota (MI1: 618 mm, MI2: 666 mm, MI3: 642 mm, MI4: 717 mm, and MI5: 777 mm; CK: 897 mm) in the whole growing season of maize; each treatment distributes different irrigation water amount in growing stages. The result indicated that the highest grain yield was obtained in MI1 with the least ...