论文部分内容阅读
[目的]明确宁夏地区大豆的适宜播种时期。[方法]以17个大豆品种为试材,分7期播种,研究不同播期对大豆生育期、产量、产量结构和农艺性状的影响。[结果]宁夏地区4月23日至6月23日播种大豆均可正常成熟,其中4月23日至5月13日播种大豆产量较高;随着播期延迟不同大豆品种的产量、株高、主茎节数、单株粒数、百粒重呈递减趋势,生育天数缩短。[结论]宁夏春播大豆适宜播种期是4月下旬至5月上旬,夏播早熟品种适宜播期为6月中旬至7月上旬。
[Objective] The research aimed to clarify the suitable planting period of soybean in Ningxia. [Method] With 17 soybean varieties as test materials, the seeds were sown in 7 stages to study the effects of different sowing date on the growth period, yield, yield structure and agronomic characters of soybean. [Result] The soybean in sowing of Ningxia from April 23 to June 23 could all be normally matured, of which the soybean yield was high from April 23 to May 13. With the sowing date delayed the yield of different soybean varieties, the plant height , The number of main stems, the number of grains per plant, the weight of 100 seeds showed a decreasing trend, and the number of days of fertility shortening. [Conclusion] The suitable seeding period of spring sowing soybean in Ningxia was from the end of April to early May, and the sowing date of early sowing date of summer sowing was from mid June to early July.