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若把白三叶草种子的播种量由每公顷三公斤增加到六公斤,则播种后第一年从作物收获得来的种籽产量得到了提高,这些从白三叶草收获得来的种籽是在头年秋季将种籽全部用撒播办法播种的。在保持湿润的土壤里或得到灌溉的地方,春季用白三叶与禾本科作物套种或与上年度采收的黑麦草种籽混播,播种后第一年的十一月中旬封闭,获得了最高的种子产量。使用30厘米的行距比使用15厘米的行距提早将近一个月得到相似的产量。收获的时间,要在(种籽)大部分成熟直到穗还未脱落的这一个月内。一般管理的目的,主要在于促进优良的葡伏茎的生长,使其生长率在十二月中旬超过上一个月,以便获得高的花头(或头状花序)密度。因此,在封闭之前和为了控制杂草而喷射除莠剂的时间尚未确定之前,必须禁止过牧。
If the seeding of white clover seeds is increased from three kilograms per hectare to six kilograms, the yield of the seeds harvested from crops is increased in the first year after sowing, and the seeds harvested from the white clover are in the head In the fall of the seed all sowing method of planting. In areas that remain moist or irrigated, the spring intercropped with white clover and gramineous crops or with the seeds of ryegrass harvested in the previous season, closed in mid-November of the first year after sowing, reaching the highest Seed yield. Using a spacing of 30 centimeters results in a similar yield earlier than a month using 15 centimeters for nearly a month. Harvest time, most of the (seed) maturity until the spike has not yet dropped off within this month. The general purpose of management is primarily to promote the growth of a good grapevine stem and to increase its growth rate beyond the previous month in mid-December in order to obtain a high density of flower heads (or flower heads). Therefore, pasturing must be prohibited until the time of spraying herbicides before closure and control of weeds has not yet been established.