作为玉米主要产区的辽宁省,几乎每年在不同地区都出现玉米空杆现象,一般田块因空杆减产5%-10%,严重的可达20%以上。因而,降低空杆率是提高玉米产量的一项重要措施。产生玉米空杆的原因很多,根据多年的经验,总结导致玉米空杆的原因及防治措施。 Liaoning Province, as a major corn producing area, experiences maize emptying almost every year in almost every year. Generally, production of maize is reduced by 5% -10% due to empty poles and seriously up to 20% or more. Therefore, reducing the empty bar rate is an important measure to increase corn production. There are many reasons for producing maize empty rod. Based on many years of experience, we summarize the reasons that cause maize empty rod and the prevention and cure measures.