大同盆地轻度盐化土壤玉米锌肥施用方法试验

在大同盆地轻度盐化土壤上采用小区试验方法，试验研究了P玉米施用锌肥对营养生长，产量构成因素和产量的影响。结果表明：施用锌肥增产达显著和极显著水平。其中锌肥基施效果最好，可提早抽雄4d，早成熟5d，株高增加4cm，穗粒数增加63．2粒，干牲重增加2g，增产12．5％；锌肥拌种和苗期喷施提早抽雄2d，提甲成熟3d，株高增加2cm，穗粒数增加29．1粒和19．2粒，千粒重分别增加0．5g和1．0g，增产7．6％和4．8％；锌肥浸种提早抽雄2d，提早成熟4d，株高增加1．0cm，穗粒数增加11．8粒，千粒重增加1．0g，增产4．4％。

Experiment of application methods of zinc fertilizer on corn in light salinized soil of Datong basin

A field experiment was conducted to study the effects of Zinc fertilizer on corn growth and yield on the light salinized soil of Datong basin. The results showed that basal dressing of zinc fertilizer had the best effect on corn growth and yield . Comparing to CK, the time of heading moved up 4 d and maturing 5 d, the height of corn plant increased 4 cm, the seeds per ear increased 63.2 seeds, the weight of thousand seeds increased 2 g, and the yield increased 12.5%. Seed dressing and seedling spraying of zinc fertilizer moved up heading 2 d and maturing 3 d, increased height of corn plant 2 cm, increased seeds each ear 29.1 and 19.2 seeds, increased weight of thousand seeds 0.5 g and 1.0 g, and increased yield 7.6 % and 4.8 %. Seed soaking of zinc fertilizer moved up heading 2 d and maturing 4 d, increased height of corn plant 1.0 cm and seeds pre ear 11.8 seeds, weight of thousand seeds 1.0 g and yield 4.4%.