近年,玉米用于饲料消费的数量持续增加,玉米种植效益连年提高,明显优于其他作物,导致大豆、水稻等作物耕地逐步改种玉米。黑龙江省玉米播种面积逐年增加,特别是在双城地区,玉米已成为大多数农户作物种植的首选。如何通过更好地改善玉米栽培技术,进而提高玉米产量,成为当前双城玉米产业发展的重中之重。1适时早播适时早播可以延长玉米生长期,积累更多的营养物质,以满足雌雄穗分化和籽粒灌浆的需要促进果穗充分发育、种 In recent years, the quantity of maize used for feed consumption continues to increase. The benefit of maize planting has been increasing year by year, which is obviously better than other crops. As a result, the crops such as soybean and rice are gradually transformed into corn. Heilongjiang Province, corn sown area increased year by year, especially in Shuangcheng area, corn has become the first choice of most farmers planted crops. How to improve maize cultivation technology, and then increase corn production, has become the current Twins corn industry development priorities. A timely and early sowing timely sowing can extend the corn growing season, accumulate more nutrients to meet the needs of male and female differentiation and grain filling to promote the full development of ear, the species