一、蜂源选择。一般以中蜂（中国蜂）为佳，不宜选用意蜂（意大利峰），因意蜂沿直线采蜜，而中蜂沿曲线活动，便于提高整个花盘的结实率。蜂箱数目应视蜜蜂活力和每箱蜜蜂个数安排，若每箱按7万只蜜蜂计算，对大多数制种田来说，每10亩地摆放2－3箱蜜蜂民D可达到好的授粉... A bee source choice. Generally, it is better to use Chinese bee (Chinese bee) instead of Italian bee (Italian peak). Because Italian bee collects honey along a straight line, the Chinese bee moves along the curve to increase the seed setting rate of the entire faceplate. The number of bee hives should be based on the vitality of the bees and the number of bees per box. If 70,000 bees per box are used, for most farming systems, 2-3 boxes of honey are put per 10 mu to achieve good pollination ...