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通过研究多花多实大穗型品种新冬１７ 号不同播种密度与产量构成因素之间的关系，表明新冬１７号在１５ 万～３５ 万／６６６．７ｍ ２（旧制１ 亩，下同）密度内产量相近，每穗粒数是决定产量的主要因素，收获穗数与穗粒数之间存在较大的负相关效应，千粒重、分蘖成穗率比较稳定，说明新冬１７ 号的群体调节能力强。６６６．７ｍ ２ 产４２０ｋｇ 要求播种密度３０ 万，保证基本苗２５ 万，并主攻穗粒数，才能发挥本品种的生产特性。
By studying the relationship between different sowing densities and yield components of Xin Dong 17, a large-spike multi-spike variety, it shows that Xin Dong 17 is between 150,000 ~ 350,000 / 666.7m 2 (the old one mu, the same below) Density within the yield similar, grain number per spike is the main factor in determining the yield, there is a significant negative correlation between the number of ears per spike and grain yield, grain weight, tillering rate is relatively stable, indicating that the new winter 17 population regulation strong ability. 666.7m2 420kg production requirements planting density of 300,000, to ensure that basic seedlings 250,000, and the main grain number of spikes, in order to play the production characteristics of this species.