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引进黑龙江省大豆品种黑河38,对不同播期处理的产量性状、生育期结构、叶面积指数消长、生物产量积累动态、器官平衡等进行了比较。结果表明:该品种在沈阳地区种植,随着播期延迟,生育日数逐渐缩短,最大叶面积指数下降、单株生物产量的积累减少。各播期间单株粒数、百粒重、小区产量差异显著,单位面积产量以6月9日播种最高,迟至7月11日播种,仍可获得较高产量,可作为春小麦或马铃薯下茬利用。以黑河、沈阳两地同期播种相比较,产量和品质差异较大。
The soybean variety Heihe 38 in Heilongjiang Province was introduced to compare the yield traits, the growth period structure, the growth and decline of leaf area index, the dynamics of biomass accumulation and organ balance in different sowing dates. The results showed that the variety was planted in Shenyang. With the delay of sowing date, the number of days of birth was gradually shortened, the maximum leaf area index decreased, and the biomass per plant decreased. During the sowing date, there were significant differences in grain yield per plant, 100-grain weight and plot yield. The yield per unit area was the highest in June 9th and later in July 11th, the yield could still be higher, which could be used as spring wheat or potato under stubble use. Compared with the same period of sowing in Heihe and Shenyang, the yield and quality are quite different.