论文部分内容阅读
玉米是辽宁省葫芦岛市连山区的主要粮食作物之一,历年种植面积不少于40万亩,占全区总耕地面积的60%以上。近几年虽然通过推广玉米优良杂交种,改进栽培技术,但玉米产量仍一直徘徊在500~600千克/亩的生产水平。为突破玉米稳而不高的生产局面,促进玉米生产再上新台
Maize is one of the main grain crops in Lianshan District of Huludao City of Liaoning Province. The area planted over the years is not less than 400,000 mu, accounting for more than 60% of the total area of cultivated land in the region. In recent years, corn production has been hovering at the production level of 500-600 kg / acre though it has been popularized through the promotion of fine hybrid corn varieties and improved cultivation techniques. In order to break the steady corn production situation, to promote corn production to a new stage