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三江平原是我省大豆主要产区之一。我场历年大豆播种面积占总播种面积的30％左右。而且有逐年增加的趋势。其中播种早熟品种约占10～15％,各年间产量很不稳定。影响早熟大豆品种产量的因素很多,实践表明,播种期的早晚对其产量的影响是极其明显的。我们对生产上使用的早熟品种,进行了分期播种试验,看出了产量与播期的关系,找出了高产的适宜播期。试验证明:大豆早
Sanjiang Plain is one of the main producing areas of soybean in our province. My field calendar year sown area of about 30% of the total sown area. And there is a trend of increasing year by year. Among them, the sown precocious varieties account for about 10 to 15%, and the output is very unstable in each year. There are many factors affecting the yield of early-maturing soybean varieties. Practice shows that the effect of sowing date on its yield is extremely obvious. We used the production of precocious varieties, conducted sowing trials, see the relationship between yield and sowing date, to find a suitable sowing date of high yield. Test proved: soybeans early