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呼兰县位于黑龙江省南部,南北地域狭长,全县16个乡跨跃两个积温带,南部乡镇为第1积温带及下限,北部乡镇为第2积温带上限。由于地理位置和生态条件多样,所以栽培作物和生产水平也各不相同。玉米作为我县的主栽作物,常年播种面积占总耕地面积的60%以上。随着种植业结构调整的不断深入和发展质量效益型农业进程的加快,我县原有品种结构已不适应玉米生产向优质高效方向发展。2002年我们引进、试验和研究了10个玉米品种,从中筛选出适合第1和第2积温带种植的抗病、高产、优质、早熟的玉米新品种,为高产示范和大面积推广提供了科学依据。
Hulan County is located in the southern part of Heilongjiang Province. Its northern and southern areas are long and narrow. There are two accumulated temperature zones in 16 townships across the county. The southern township is the first accumulated temperature zone and the lower limit. The northern township is the upper limit of the second accumulated temperature zone. Due to the diversity of geographical locations and ecological conditions, cultivated crops and production levels also vary. As the main crop of the county, corn covers more than 60% of the total cultivated area. With the deepening of the structural adjustment of planting industry and the acceleration of the development of quality and efficiency agriculture, the original variety structure of our county has not adapted to the direction of high quality and efficiency for corn production. In 2002, we introduced, tested and researched 10 maize varieties and screened out new maize varieties with high disease resistance, high yield, good quality and precociousness suitable for the first and the second accumulation of temperate zone, and provided science for high-yield demonstration and large-scale popularization in accordance with.