川东南高温伏旱区连作双季玉米春玉米高产栽培技术的研究及应用

HIGH YIELD CULTIVATING TECHNIQUES FOR SPRING MAIZE IN THE HOT AND SUMMER DROUGHT AREAS OF SOUTHEAST SICHUAN

在川东南高温伏旱区,将春玉米提早到惊蛰前后播种.选用雅玉二号等耐寒大穗型新品种,配套盖膜育苗等措施,既能减轻甚至避免高温伏旱的危害,使春玉米产量提高20%,又能连作一季秋玉米.该技术已在川东南及类似地区推广应用达30多万亩.

In the southeast Sichuan Province, where the climate conditions are hot and drought in sum-met, if the sowing date of spring maize were movedup around the waking of insects (3rd solar term) , simultaneously, adoption of Yayu-2, a cold tolerent and long ear maize cultivar, and plastic membrane covering technique, the kernal yield increased by 20% and the damage caused by high tempereture and summer drought decreased, even avoided. Up to date, this technique were popularized in an area over 2000 hm2 in the above area and the like.