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玉米是甘肃省天水市秦州区的第二大农作物,其年播种面积1.5万hm2,其产量的变化对秦州区的粮食生产影响较大。近年,全膜双垄沟播技术的推广应用,改变了玉米的生长环境和种植区域,使玉米的产量上了一个新台阶,但是,在全膜双垄沟播技术推广应用过程中,玉米的种植密度是影响玉米产量的主要因素,因时因地的合理密植是玉米增产的关键,良种良法配套才能使玉米增产增收。为此,选用秦州区的主栽玉米品种沈单16号,在做了全膜双垄沟播玉米不同密度的种植试验,旨在找出适宜于秦州区全膜双垄沟播玉米的种植密度。
Corn is the second largest crop in Qinzhou District of Tianshui City, Gansu Province. Its annual sown area is 15,000 hm2. The change of its output has a great influence on the grain production in Qinzhou District. In recent years, the whole film double furrow sowing technology popularization and application, changing the growth environment of corn and planting areas, corn yield to a new level, however, in the whole film double furrow sowing technology popularization and application process, the planting density of corn Is the main factor affecting the yield of maize, because the reason that the close planting density is the key to increasing corn yield, good law supporting the good yield and income of corn. To this end, the selection of Qinzhou District, the main varieties of cultivars Shen No. 16, made in the whole film double ridge furrow sowing different planting density test, aimed at finding suitable for Qinzhou whole film double ridge furrow planting sowing density .