CAJ | 학술논문

为了探索冀东地区玉米播期与禾蓟马发生量和玉米产量之间的关系，以生产常用玉米品种郑单958为试材，在4月30日～7月19日每隔10 d 设定1个播期，研究了9个不同播期处理对禾蓟马发生量和玉米产量的影响，以确定冀东地区玉米禾蓟马为害率较低且产量较高的适宜播种日期。结果表明：随着播期的推迟，禾蓟马发生量呈增加-减少-增加的趋势，玉米产量呈减少-增加-减少的趋势，其中，4月30日播种的玉米未见到禾蓟马发生、产量最高，5月10日和6月29日播种的玉米虫害率较低、产量较高，但3个播期处理的玉米产量差异均不显著。建议冀东地区春播玉米选择4月30日～5月10日播种，夏播玉米选择6月29日前后播种，以降低禾蓟马对玉米产量的影响。
위료탐색기동지구옥미파기여화계마발생량화옥미산량지간적관계，이생산상용옥미품충정단958위시재，재4월30일～7월19일매격10 d 설정1개파기，연구료9개불동파기처리대화계마발생량화옥미산량적영향，이학정기동지구옥미화계마위해솔교저차산량교고적괄의파충일기。결과표명：수착파기적추지，화계마발생량정증가-감소-증가적추세，옥미산량정감소-증가-감소적추세，기중，4월30일파충적옥미미견도화계마발생、산량최고，5월10일화6월29일파충적옥미충해솔교저、산량교고，단3개파기처리적옥미산량차이균불현저。건의기동지구춘파옥미선택4월30일～5월10일파충，하파옥미선택6월29일전후파충，이강저화계마대옥미산량적영향。
In order to explore the relationship between the sowing date of corn and amount of thrips and yield of corn in eastern Hebei area, taking commonly used corn variety Zhengdan 958 as test material, the sowing dates was set every 10 days from April 30 to July 19, and the effects of 9 different sowing dates on amount of thrips and yield of corn were studied to determine the suitable sowing date of corn in eastern Hebei area.The results showed that the amount of thrips and yield of corn were all showed increased-decreasd-increasd trends with the sowing date delaying, the yield of corn was highest and thrips was not occurred when the corn were sowed on April 30, and damage rate of corn was lower and yield of corn was higher when sowed on May 10 and June 29, but there was no significant differences on yield of corn among 3 sowing dates.It suggested that to reduce the influence of thrips on the yield of corn, spring-sowing corn should be sowed from April 30 to May 10, and summer-sowing corn should be sowed around June 29 in eastern Hebei area.